Tumfei Valve Technology：Fine small electric actuator
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Tumfei Valve Technology：Fine small electric actuator

　　Quick Detail:　　Tumfei Valve Technology 's fine electric actuator is a motor and gearbox or transmission device combined together, through the output shaft to generate conversion torque, to achieve the control, regulation and automatic operation of mechanical equipment.　　Description:　　Main feature　　Compact structure: The fine small electric actuator adopts the top type structure, which reduces the connection bolts of the valve body itself, enhances the reliability of the valve, and has a compact structure and takes up little space.　　Rich in functions: According to demand, fine small electric actuators can be divided into switching type, regulating type and intelligent type three. Switch type valves and other similar products for controlling rotation from zero to 270 degrees; The intelligent type can adjust the opening position of the valve arbitrarily according to customer needs to control the flow size, and has a field control button, which can realize local and remote switching operation.　　Strong corrosion resistance: the shell is usually made of hard aluminum alloy, after anodizing treatment and settlement powder coating, strong corrosion resistance and high protection level.　　High-precision control: Through the cooperation of motors, gearboxes, sensors and control systems, fine electric actuators can achieve high-precision control and automatic operation of mechanical equipment.　　Performance characteristics　　Motor part: The core component of the electric actuator is the motor, usually using an AC motor or a DC motor. The motor completes selective rotation by reversing and adjusting the power supply voltage, thus driving the movement of the output shaft.　　Gearbox part: In order to increase the torque of the output shaft and reduce the speed of the output shaft, the electric actuator usually uses a gearbox or transmission device. The gearbox is generally composed of gears, which can change the speed of the input shaft and the torque of the output shaft, and can improve stability and durability.　　Sensor part: Small electric actuators usually need to communicate with external devices, so sensors need to be installed to monitor the position and status of the output shaft. The sensor can detect the stroke and Angle of the output shaft, and send the position and status information to the control system, so as to realize the accurate control of the output shaft.　　Control system part: In order to achieve the control and adjustment of the electric actuator, it is necessary to use a control system. The control system can calculate according to the feedback information of the sensor, so as to output the control signal and drive the motor to realize the accurate motion control of the output shaft.
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Release time：2025-06-23 15:13 reading：184 Continue reading>>
ROHM's SiC MOSFET Adopted for Mass Production in Toyota's New BEV
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ROHM's SiC MOSFET Adopted for Mass Production in Toyota's New BEV "bZ5" for the Chinese Market

　　~Integration in traction inverters extends the cruising range and improves performance~　　The power module equipped with ROHM Co., Ltd.'s 4th generation SiC MOSFET bare chip has been adopted in the traction inverter of Toyota Motor Corporation's (hereinafter "Toyota") new crossover BEV "bZ5" for the Chinese market.　　The "bZ5" is a crossover-type BEV jointly developed by Toyota, BYD TOYOTA EV TECHNOLOGY Co., Ltd. (hereinafter "BTET"), FAW Toyota Motor Co., Ltd. (hereinafter "FAW Toyota"), etc., and was launched by FAW Toyota in June 2025.　　The power module adopted this time has started mass production shipments from HAIMOSIC (SHANGHAI) Co., Ltd., a joint venture between ROHM and Zhenghai Group. ROHM's power solutions centered on SiC MOSFETs contribute to the extended range and enhanced performance of the new BEV.　　ROHM aims to complete the construction of the production line for the next-generation 5th generation SiC MOSFET by 2025, and is also accelerating the market introduction plans for the 6th and 7th generations, focusing on the development of SiC power devices. ROHM will continue to work on improving device performance and production efficiency, and strengthen the system to provide SiC in various forms such as bare chips, discrete components, and modules, promoting the spread of SiC and contributing to the creation of a sustainable mobility society.　　About the "bZ5"　　The "bZ5" is a crossover BEV jointly developed by Toyota, BTET, FAW Toyota, etc., with the concept of "Reboot." It features active and iconic styling and is designed to provide a personal space for young users known as Generation Z. The driving range is 550 km for the lower grade and 630 km (CLTC mode) for the higher grade. Reservations began on April 22, 2025, the day before the opening of the 2025 Shanghai Motor Show, attracting significant attention.　　About HAIMOSIC (SHANGHAI) Co., Ltd.　　HAIMOSIC (SHANGHAI) CO.,LTD. is a Joint venture initiated by Zhenghai Group Co., Ltd. (China) and ROHM Co., Ltd. (Japan). HAIMOSIC is mainly engaged in the R&D, design, manufacturing and sales of the silicon carbide power module, with an estimated annual capacity of 360,000 pieces/year. The total investment of the project is 450 million RMB and the registered capital is 250 million RMB. For more details, please visit HAIMOSIC's website: http://www.haimosic.com/
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Release time：2025-06-23 14:11 reading：242 Continue reading>>
Tumfei Valve Technology：The principle of common valves and their use
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Tumfei Valve Technology：The principle of common valves and their use

　　Tumfei Valve Technology has summarized the principle of common valves and their use. Let's learn about them together.　　First, the role of the valve　　1, opening and closing action - cut off or communicate the flow of fluid in the tube;　　2, regulating effect - regulating tube flow, flow rate;　　3, throttling effect - make the fluid through the valve to produce a large pressure drop;　　4. Other functions -a. Automatic opening and closing b. Maintain a certain pressure c, prevent steam drainage.　　Second, the type of valve　　1, according to the use of: cut-off valves, regulating valves, diverting valves, check valves, safety valves;　　2, according to the force points: he action with the valve, automatic action valve.　　Three, the main parameters of the valve　　PN nominal pressure (the maximum pressure that allows fluid to pass through);　　DN nominal diameter;　　TN Temperature range (permissible fluid temperature range).　　Forth， Check the valve before use　　Check items include:　　1, the internal and external surfaces of the valve body have sand holes, cracks and other defects;　　2. Whether the valve seat is firmly engaged with the valve body, whether the spool is consistent with the valve seat, and whether the sealing surface is defective;　　3, whether the valve stem and the spool connection is flexible and reliable, whether the valve stem is bent, whether the thread is damaged or corroded;　　4, packing, gasket is aging damage;　　5, the valve open is flexible, etc.　　Fifth，Problems often occur in the use of valves　　1, flange and thread leakage at the connection of the pipeline;　　2, packing culvert leakage, waist pad leakage and valve stem can not move;　　3, between the valve core and the seat is not tightly closed to form internal leakage.　　Sixth, the characteristics of commonly used valves and their use precautions　　(1) Plug Valve (Cock)　　Features: TN less than 150 degrees PN less than 1.6Mpa its simple structure, quick opening and closing, easy operation, low fluid resistance and other advantages　　Precautions for use:　　1, the outer end of the valve stem is square, the straight line marked by the diagonal is vertical and the direction of the valve body is closed, and the direction of the valve body is consistent with the open state;　　2, the normal switch valve with cock special wrench, to avoid sliding with the valve stem caused by safety accidents; Try not to use an adjustable wrench to cause slippage;　　3, open the valve according to the previous check item check, slowly open the valve after the check, try not to stand in the direction of the sealing surface when opening, encounter acid and alkali fluid must wear acid mask;　　4, if the pipeline has a sight mirror see the fluid in the sight mirror can be checked and left.　　(2) Ball valve:　　Ball valve and plug valve are the same type of valve, but the opening and closing part is a ball with a hole, and the center line of the ball valve stem rotates to achieve the purpose of opening and closing.　　Insulated ball valve with jacket　　Stainless steel ball valve　　Stainless steel ball valve quick opening ball valve　　Features: Valve structure is simple, reliable, used for two-way flow medium pipeline, fluid resistance is small, good sealing; Disadvantages; The medium is easy to leak from the stem.　　Precautions for use:　　Same as a plug valve;　　With a handle valve, the handle perpendicular to the medium flow direction for the closed state, consistent with the direction for the open state; If the ball valve with jacket insulation should pay attention to the following matters:　　The jacket insulation steam should be opened to melt the crystallizing medium in the valve before opening and closing the valve, do not forcibly open and close the valve before the medium is completely melted;　　When the valve cannot be opened, the method of lengthening the lever cannot be used to forcibly open the valve, because this will cause the valve stem to be resisted and the spool to fall off, causing damage to the valve or causing damage to the wrench, resulting in unsafe factors.　　(3) Butterfly valve　　The butterfly valve uses a rotating disc with a flexible shaft to control the opening and cosing of the pipeline, and the Angle size reflects the opening degree of the valve.　　According to the different transmission methods, the butterfly valve is split, pneumatic and electric three, commonly used for manual, rotating handle through the gear drive valve stem to open and close the valve.　　Features: Butterfly valve has the advantages of simple structure, rapid opening and closing, small fluid resistance, easy maintenance, etc., but it can not be used for high temperature and high pressure occasions, PN less than 1.6Mpa, t less than 120 degrees of large diameter water, steam, air, oil and other pipelines.　　Precautions for use:　　1, the spool can only be rotated 90 degrees, generally the valve body will indicate the direction of the CLOSE and OPEN arrows, the hand wheel clockwise rotation is closed, and the reverse is open;　　2, if sometimes there is a certain resistance to opening and closing, you can use a special P wrench to open the valve. But it can not be forced to open and close, otherwise the male will stir the thin rod gear:　　3. It is forbidden to remove the handwheel and report the hand vibration valve sample with activity; (Same goes for lower waist)　　4. Gradually open and close when opening and closing, observe whether there is any abnormal situation, and prevent leakage.　　(4) Stop valve　　The globe valve is the most widely used cut-off valve in chemical production. Compared with the above three cut-off valves, it is not the use of the rotation of its closing parts to open and close the valve, but the use of the valve stem to drive the circular valve disc (valve head) connected with it, and change the distance between the valve disc and the seat to control the valve opening and closing.　　Streamline type stop valve American standard stop valve　　Features: The upper part of the globe valve has a handwheel, valve stem, the middle has a thread and packing culvert sealing section, the small valve stem on the thread in the valve body, its compact structure, but the valve stem and the medium contact part, especially the thread part is easy to corroded, from the height of the valve stem exposed to the valve cover can be judged　　The globe valve structure is more complex, but the operation is simple, not very laborious, easy to adjust the flow rate and truncate the channel, slow closing without water hammer phenomenon, so it is more widely used.　　When installing the globe valve, pay attention to the direction of the fluid, the pipeline fluid should flow through the valve seat from the bottom up, and the so-called "low into high", the purpose is to reduce the fluid resistance, so that the valve stem and packing culvert are not in contact with the medium under the opening and closing state, to ensure that the valve stem and packing culvert are not damaged and leaked.　　The globe valve is mainly used for the pipeline of water, steam, compressed air and various materials, which can adjust the flow rate more accurately and strictly cut off the channel, but can not be used for materials with large viscosity and easy crystallization.　　Precautions for use:　　1, before opening to check the valve for defects, especially the filler culvert leakage:　　2, in the valve stem can not be directly rotated by hand, the special F wrench can be used to open and close, when it is still unable to open and close, please do not extend the wrench lever to force open and close, resulting in damage to the valve or cause safety accidents:　　3, when used for medium pressure steam pipeline valve, the condensate in the pipe should be drained first when opened. Then slowly open the valve with 0.2 to 0.3Mpa steam to preheat the pipeline, to avoid the sudden opening of pressure caused by damage to the sealing surface, called the normal inspection after the pressure to adjust the required state　　(5) Gate valve　　Gate valve, also known as gate valve or gate valve, it is through the lift of the gate to control the valve opening and closing, the gate is straight to the direction of the fluid, change the relative position between the gate and the seat can change the size of the channel.　　Open stem gate valve Dark stem gate valve　　According to the different movement of the valve stem when the gate valve is opened and closed, the gate valve has two kinds of distinct rod type and dark rod type.　　Open rod gate valve stem thread strike outside the valve body, open the valve stem out of the handwheel, its advantage is that according to the length of the valve stem to determine the size of the valve open, the valve stem and the medium contact length is small, the thread part is basically not affected by the medium corrosion, the disadvantage is that the height of the overhang space.　　The valve stem thread inside the valve stem and the internal thread on the gate plate want to match, open the valve stem only rotation without up and down, the gate rises along the valve stem thread. The advantage of dark rod gate valve is that the overhang space is small, the disadvantage is that the opening of the valve can not be judged according to the condition of the valve stem, and the valve stem thread is easily corroded by long-term contact with the medium.　　Gate valve has the advantages of small fluid resistance, constant medium flow direction, slow opening without water hammer phenomenon, easy to adjust the flow rate, etc. The disadvantages are complex structure, large size, long opening and closing time, and difficult maintenance of sealing surface. Due to the large bore feed pipe　　1, when the valve stem is opened and closed in place, it can not be forced to force, otherwise it will break the internal thread or latch screw, so that the valve is damaged;　　2, open and close the valve when the hand can not be directly started, F wrench can be used to open and close;　　3. When opening and closing the valve, pay attention to the sealing surface of the valve, especially the packing gland to prevent leakage.　　(6) Throttle valve　　Throttle valve, also known as needle valve, its shape is similar to the globe valve, its valve core shape is different, back to the base or parabola, often used in the instrument, often bundle connection.　　Precautions for use:　　1, because of the threaded connection, first check whether the threaded connection is loose when opening and closing;　　2, open and close the valve slowly, because the flow area is small, the flow rate is large, may cause corrosion of the sealing surface, should pay attention to observe, pay attention to the change of pressure.　　(7) Check valve　　Check valve is a valve that automatically opens and closes by using the pressure difference between the medium before and after the valve to control the one-way flow of the medium, also known as check valve or check valve.　　Check valves are divided into two types according to different structures: lifting type (jumping type) and swinging type (shaking pole type).　　Lift type swing type　　Precautions for use:　　Pay attention to the direction of the valve, the arrow is consistent with the flow direction of the medium, such as the medium easy crystallization may cause the valve disc can not be pressed down to play the role of command and check.　　(8) Safety valve　　The safety valve is a kind of valve that automatically opens and closes according to the medium pressure. When the medium pressure exceeds a certain value, it can automatically open the valve to discharge pressure relief, so that the equipment pipeline is free from the danger of damage, and can automatically close after the pressure returns to normal.　　According to the way of balancing the internal pressure, the safety valve is divided into two categories: lever weight type and spring type.　　Precautions for use:　　1, the safety valve must be used within the validity period;　　2, the safety valve control valve installed on the pipeline and equipment is usually the globe valve must be opened to ensure that the safety valve can work effectively;　　3. Periodically lift the valve disc slightly and use the medium to blow the impurities in the valve.　　4, if the safety valve can not work within the setting pressure, it must be re-validated or replaced　　(9) Steam trap　　Steam trap is a kind of valve that can automatically and intermittently remove condensate and prevent steam from leaking out in steam pipeline, heater and other equipment systems. Commonly used are bell-shaped float type, thermal power type and pulse type.　　Precautions for use:　　1, use the pipeline bypass valve to remove condensate before use, when there is steam to close the bypass, start the trap path, otherwise the valve will be closed water can not play the role of drainage;　　2. Be careful not to be scalded by steam when opening and closing the valve.　　(10) All kinds of sampling valves　　As the name suggests, the sampling valve is a valve used to obtain media samples so that chemical analysis can be performed, generally installed in equipment or pipelines are roughly divided into the following categories:　　Double opening valves, flanged clip valves, and sampling valves with insulated jacket:　　Use note method:　　1, the double opening valve is generally composed of two ball valves, to sample safety and achieve the purpose of sampling through linkage in the negative pressure device; When sampling, close the second valve near the equipment and pipeline and open the first valve. Let the medium flow into the space between the two valves; Then close the first valve, open the second valve, and place the sampling vessel into the sampling port to contain the medium;　　2. The flange clip valve is generally sealed through the top cone of the valve stem and the cone hole of the seat, and the valve stem is separated from the cone hole by turning the hand wheel during sampling, so that the medium can flow from the cone hole to the external sampling vessel;　　3, with jacket insulation sampling valve should pay attention to the following matters:　　I should open the jacket insulation steam to melt the crystallizable medium in the valve before opening and closing the valve, do not forcibly open and close the valve before the medium is completely melted;　　When the valve cannot be opened, the method of lengthening the lever cannot be used to forcibly open the valve, because this will cause the valve stem to suffer greater resistance and the valve core to fall off, or cause the valve stem and the cone hole sealing surface to be damaged. from　　And cause damage to the valve or cause damage to the wrench, resulting in unsafe factors.　　(11) Fluorine plastic lined rubber valve　　Fluorine plastic lined rubber valve is mainly used in acid and alkali and other corrosive media, its structure principle is similar to the unlined fluorine plastic valve, but its stem, valve core, valve seat are used fluorine plastic substrate, its use method is similar.　　Classification of valves　　There are many kinds of valves. With the continuous improvement of the process flow and performance of various complete sets of equipment, the types of valves are still increasing, and there are a variety of classification methods.　　According to the automatic and drive classification, can be divided into:　　1) Automatic valves rely on the ability of the medium (liquid, air, steam, etc.) to operate by itself. Such as safety valves, check valves, pressure reducing valves, steam traps, solenoid valves, air traps, emergency cut-off valves, etc.　　2) Drive valves Valves that are operated manually, electrically, hydraulically or pneumatic. Such as gate valve, globe valve, throttle valve, butterfly valve, ball valve, plug valve and so on.　　According to the use and function classification, can be divided into:　　1) The cut-off valve is mainly used to cut off or connect the medium flow in the pipeline. Such as globe valve, gate valve, ball valve, plug valve, butterfly valve, diaphragm valve and so on.　　2) Check valves are used to prevent the backflow of the medium. Such as a variety of different structures of the check valve.　　3) Regulating valves are mainly used to regulate the pressure and flow of the pipeline medium. Such as regulating valve, throttle valve, pressure reducing valve and so on.　　4) The diverter valve is used to change the direction of the flow of the medium in the pipeline, and plays the role of distributing, diverting or mixing the medium.　　Such as various structures of distribution valves, three-way or four-way plug valves, three-way or four-way ball valves, various types of traps and so on.　　5) Safety valves are used for overpressure safety protection, discharge of excess media, and prevent pressure from exceeding the specified value. Such as various types of safety valves.　　6) Multi-purpose valves are used to replace two, three or even more types of valves. Such as stop check valve, check ball valve, stop check safety valve, etc.　　7) Other special valves such as blowdown valve, blowdown valve, coke valve, pigging valve, etc.
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Release time：2025-06-17 14:09 reading：280 Continue reading>>
New High Accuracy Current Sense Amps Compatible with Both Negative and High Voltages
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New High Accuracy Current Sense Amps Compatible with Both Negative and High Voltages

　　ROHM has developed a new lineup of high accuracy current sense amps – the BD1423xFVJ-C and the BD1422xG-C. They are qualified under the AEC-Q100 automotive reliability standard. The BD1423xFVJ-C series, offered in the TSSOP-B8J package, supports input voltages up to +80V, making it ideal for high-voltage environments such as 48V DC-DC converters, redundant power supplies, auxiliary batteries, and electric compressors. The series includes three models with different gain settings: BD14230FVJ-C, BD14231FVJ-C and BD14232FVJ-C.　　For lower voltage use cases, the BD1422xG-C, available in the compact SSOP6 package, supports input voltages up to +40V. This makes them suitable for automotive applications requiring space-saving designs, such as current monitoring and protection (overcurrent) in 5V/12V power supply networks used in body and drivetrain domains. Like its high-voltage counterpart, this series also consists of three different gain options: BD14220G-C, BD14221G-C and BD14222G-C.　　In recent years, alongside conventional 5V/12V power supplies, the automotive market has seen a growing adoption of 48V systems fueled by the rising popularity of electric vehicles. Furthermore, as vehicle functionality becomes more advanced, the need for precise monitoring and control across a wide range of applications continues to increase, placing a greater importance on high-accuracy current sensing.　　A current sense amp indirectly measures the current flowing through a circuit by amplifying the miniscule voltage drop across a shunt resistor. The amplified signal is then sent to an ADC or comparator for system control and monitoring. ROHM’s automotive-grade current sense amps meet market demands by leveraging proven analog expertise. This enables high-accuracy current sensing with compatibility for both negative and high voltage environments, contributing to improved safety and reliability in automotive applications, particularly electric vehicles.　　These new products achieve greater space efficiency by integrating most of current sensing circuitry, typically comprised of an operational amplifier and discrete components, int o a single package. As a result, current detection is possible by simply connecting a shunt resistor. The devices also feature a two-stage amplifier configuration, consisting of a chopper amplifier at the input and an auto-zero amplifier at the output. Internal resistor matching for gain setting ensures stable, accurate current sensing (±1%) while minimizing the effects of temperature variations.　　Furthermore, current detection accuracy is maintained even when an external RC filter circuit added for noise suppression, significantly reducing design complexity and development time. Additional features include -14V negative voltage tolerance that supports back electromotive force, reverse connection, and negative voltage input.　　Going forward, ROHM will continue to deliver optimal solutions that contribute to higher precision and enhanced reliability in automotive equipment.　　Application Examples　　• BD1423xFVJ-C (for 48V systems): Redundant power supplies, auxiliary batteries, DC-DC converters, and electric compressors, and the like　　• BD1422xG-C (for 5V/12V systems): Body DCUs (Domain Control Units) / ECUs (Electronic Control Units), etc.　　Terminology　　AEC-Q100 Automotive Reliability Standard　　AEC stands for Automotive Electronics Council, a reliability standard for automotive electronic components established by major automotive manufacturers and US electronic component makers. Q100 is a standard that specifically applies to integrated circuits (ICs).　　Shunt Resistor　　A resistor connected in series in the current path to detect the current in the circuit by measuring the potential difference across it.　　Chopper Amp　　An amp circuit designed to minimize signal offset and noise, primarily used for accurately amplifying low-frequency and weak DC signals.　　Auto-Zero Amp　　An amp that automatically compensates for offset voltage (unwanted noise and errors) by continuously sampling and correcting it during operation. This ensures high signal accuracy, making it ideal for applications that demand ultra-precise measurement and signal processing.
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Release time：2025-06-13 16:56 reading：283 Continue reading>>
ROHM Builds the Future of AI with Optimized Solutions for NVIDIA 800V Architecture
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ROHM Builds the Future of AI with Optimized Solutions for NVIDIA 800V Architecture

　　As artificial intelligence continues to redefine the boundaries of computing, the infrastructure powering these advancements must evolve in parallel. A recognized leader in power semiconductor technology, ROHM is proud to be among the key silicon providers supporting NVIDIA’s new 800 V High Voltage Direct Current (HVDC) architecture. This marks a pivotal shift in data center design, enabling megawatt-scale AI factories that are more efficient, scalable, and sustainable.　　ROHM’s power device portfolio spans both silicon and wide bandgap technologies, including silicon carbide (SiC) and gallium nitride (GaN), offering a strategic path for data center designers. The company’s silicon MOSFETs are already widely adopted across automotive and industrial sectors, providing a cost-effective and reliable solution for today’s power conversion needs. These are ideal for applications where price, efficiency, and reliability must be balanced, making them a strong fit for transitional stages of AI infrastructure development.　　A standout example is the RY7P250BM, a 100V power MOSFET endorsed by major global cloud providers designed specifically for hot-swap circuits in 48V power systems—an essential component in AI servers. Key features include best-in-class SOA (Safe Operating Area) performance and ultra-low ON resistance (1.86 mΩ) in a compact 8080 package. These characteristics help reduce power loss and improve system reliability—crucial requirements in high-density, high-availability cloud platforms. As data centers transition from 12V to 48V and beyond, hot-swap capability becomes critical for maintaining uptime and protecting against inrush currents.　　Industrial-grade rectification with minimal losses is an area where ROHM’s SiC devices excel and align with NVIDIA’s plans to begin large-scale deployment of its 800V HVDC data center architecture to power 1 MW compute racks and beyond. At the heart of NVIDIA’s new infrastructure is the conversion of 13.8kV AC from the grid directly into 800V DC. The initiative is designed to address the inefficiencies of traditional 54V rack power systems, which are constrained by physical space, copper overload, and conversion losses.　　ROHM’s SiC MOSFETs deliver superior performance in high-voltage, high-power environments, offering higher efficiency through reduced switching and conduction losses, greater thermal stability for compact, high-density systems, and proven reliability in mission-critical applications. These characteristics align perfectly with the requirements of the NVIDIA 800 V HVDC architecture, which aims to reduce copper usage, minimize energy losses, and simplify power conversion across the data center.　　Complementing SiC, ROHM is advancing gallium nitride technologies under the EcoGaN™ brand. While SiC is best-suited for high voltage, high current applications, GaN offers exceptional performance in the 100V to 650V range, with superior breakdown field strength, low ON resistance, and ultra-fast switching. ROHM’s broad EcoGaNTM lineup includes 150V and 650V GaN HEMTs, gate drivers, and integrated power stage ICs. At the same time, proprietary Nano Pulse ControlTM technology further improves switching performance, reducing pulse widths to as low as 2ns. These innovations support the growing demand for smaller, more efficient power systems in AI data centers.　　Beyond discrete devices, ROHM offers a lineup of high-power SiC modules, including top-side cooling molded packages such as the HSDIP20, equipped with advanced 4th Gen SiC chips. These 1200V SiC modules are optimized for LLC topologies in AC-DC converters and primary-side applications in DC-DC converters. Engineered for high-efficiency, high-density power conversion, they are particularly well-suited for the centralized power systems envisioned in NVIDIA’s architecture. Their robust thermal performance and scalability make them ideal for 800 V busways and MW-scale rack configurations.　　The transition to an 800V HVDC infrastructure is a collaborative effort. ROHM is committed to working closely with industry leaders like NVIDIA as well as data center operators and power system designers to provide the foundational silicon technologies needed for this next generation of AI factories. Our expertise in power semiconductors, particularly in wide-bandgap materials like SiC and GaN, positions us as a key partner in developing solutions that are not only powerful but also contribute to a more sustainable and energy-efficient digital future.
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Release time：2025-06-13 16:52 reading：290 Continue reading>>
Fibocom Releases 5G AI Mobile Hotspot Solution, Unlocking Intelligent Future for Mobile Broadband Devices
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Fibocom Releases 5G AI Mobile Hotspot Solution, Unlocking Intelligent Future for Mobile Broadband Devices

　　As 5G and AI technologies continue to converge, demand is growing for stable, high-speed, and intelligent mobile networks across various scenarios—from business travel and outdoor operations to global connectivity. Fibocom’s latest 5G AI Mobile Hotspot solution redefines the mobile broadband experience with cutting-edge technology and forward-thinking design.　　Powered by Qualcomm’s advanced 4nm QCM4490 platform, the solution combines smartphone-grade ultra-low power consumption with precision circuit design. This results in a powerful yet energy-efficient platform that balances high performance with cost optimization.　　In terms of connectivity, the solution supports 3GPP Release 16 and NR 2CC 120MHz. It delivers a downlink speed of up to 2.3 Gbps in SA mode and 2.5 Gbps in NSA mode. Customers can flexibly configure the solution with either AX3600-based Wi-Fi 6E or BE5800-based Wi-Fi 7 options. It supports dual-band simultaneous (DBS) modes of 2.4GHz+5GHz or 2.4GHz+6GHz, as well as high-band simultaneous (HBS) mode of 5GHz+6GHz.　　Tailored for Mobile Hotspot applications, the solution runs an optimized Android 13 OS, significantly boosting system performance while reducing power consumption. With USB 3.1 support and a theoretical data transfer rate of up to 5 Gbps, it’s well-suited not only for 5G Mobile Hotspot devices but also for other mobile broadband terminals such as USB dongles.　　Crucially, the solution leverages the QCM4490’s heterogeneous computing architecture, featuring a robust 8-core CPU (2x Cortex-A78 @ 2.4GHz + 6x Cortex-A55 @ 2.0GHz) and integrated Adreno 613 GPU (@ 1010MHz). Compared to GPU-less solutions, this powerful combination enables efficient on-device AI processing, expanding the possibilities for more edge intelligence applications. Internal tests have demonstrated the successful deployment of large-scale open-source AI models such as Qwen-1.8 B-Chat.　　From business office to global travel these mobile broadband applied scenarios, Fibocom’s cost-effective 5G AI Mobile Hotspot solution—with optional Wi-Fi 7 support—paves the way for a new era of AI-enhanced mobile broadband.
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Release time：2025-06-06 15:38 reading：316 Continue reading>>
Renesas：Enhance HMI User Experience with Built-in Large Memory MPU
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Renesas：Enhance HMI User Experience with Built-in Large Memory MPU

　　The HMI market continues to drive growth in better user experience and increased automation with the expansion of HMI applications. This results in a strong demand for improved functionality and performance in display-based applications, such as real-time plotting, smooth animation, and USB camera image capture, in affordable systems. Microprocessors (MPUs) with high-speed, large-capacity built-in memory that can be used like microcontrollers (MCUs) are gaining attention in the market. Renesas' RZ/A3M MPU with a built-in 128MB DDR3L SDRAM and a compatible package for a two-layer PCB design is the ideal solution for realizing smooth animation and high-quality HMI at a reasonable system cost.　　High-Performance HMI and Real-Time Graphics　　Integrating high-speed, large-capacity memory directly into the MPU package offers several advantages, including mitigating concerns about high-speed signal noise on the PCB and simplifying PCB design for the users. The large-capacity memory needed for high-performance HMIs is externally connected to the MPU in the conventional way. Additionally, PCBs equipped with DDR memory and high-speed signal interfaces require multi-layer PCB designs to account for signal noise, making it challenging to reduce PCB costs. Also, the common capacity of on-chip SRAM is typically between 1MB and 10MB, which is too small for high-performance HMIs that need to include a reasonable number of tasks in the near future. To overcome these issues, Renesas released an industry-leading RZ/A3M MPU with a large built-in 128MB DDR3L memory to support high-performance HMI and real-time graphics performance to enhance better and faster user experiences. Most importantly, the board does not require a high-speed signal interface and supports two-layer PCB design to reduce board noise and simplify system development for users.Figure 1. Strengths of Built-in DDR Memory　　Designing High-Performance PCBs at a Reasonable System Cost　　The number of PCB layers and the ease of design significantly impact the cost of system implementation and maintenance in user applications. As shown in Figure 2, using a wide pin pitch of 0.8mm allows for the layout of signal lines and placement of VIAs between the balls. Additionally, placing the balls handling the main signals in the outer rows of the 244-pin 17mm x 17mm LFBGA package and positioning the GND and power pins as inner balls allows for efficient routing of the necessary signal lines for the system (Figure 3). The RZ/A3M MPU is designed to build cost-effective systems with two-layer PCBs through its innovative packaging and pin assignments.Figure 2. Signal Wiring and Ball LayoutImageFigure 3. Optimized Ball Arrangement for a Two-Layer Board Layout　　User-Friendly Interface Enabling Smooth GUI Display　　The high-resolution graphic LCD controller integrated into the RZ/A3M supports both parallel RGB and 4-lane MIPI-DSI interfaces, accommodating displays up to 1280x800. Additionally, the 2D graphics engine, high-speed 16-bit 1.6Gbps DDR3L memory, and 1GHz Arm® Cortex®-A55 CPU enable high-performance GUI displays, including smooth animations and real-time plotting that increase the possibility of automation in HMI applications. Connecting a USB camera to the USB 2.0 interface enables smooth capture of camera images, making it easy to check inside of an apparatus, for example, the doneness of the food in the oven or the condition in the refrigerator.　　The EK-RZ/A3M is an evaluation kit for the RZ/A3M. It includes an LCD panel with a MIPI-DSI interface. With this kit, users can immediately start evaluation. Renesas also has several graphics ecosystem partners – LVGL, SquareLine Studio, Envox, Crank, RTOSX – who deliver GUI solutions utilizing the EK-RZ/A3M to further accelerate your development cycle.Figure 4. High-Definition HMI Example with the EK-RZ/A3M　　The RZ/A3M MPU, equipped with high-speed 128MB DDR3L memory and a 1GHz Arm Cortex-A55, excels in developing cost-effective HMI applications with real-time plot UIs, smooth animations, and USB camera capture. The integrated memory simplifies PCB design by removing the need for high-speed signal interface design. Visit www.renesas.com/rza3m to learn more about the technical details and how to start developing the next HMI applications for consumer electronics, smart home, building automation, healthcare, industrial applications, and office automation.
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Release time：2025-06-06 15:27 reading：327 Continue reading>>
TAIYO YUDEN: World's First Multilayer Metal Power Inductor Capable of Withstanding Temperatures up to 165°C
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TAIYO YUDEN: World's First Multilayer Metal Power Inductor Capable of Withstanding Temperatures up to 165°C

　　TAIYO YUDEN CO., LTD. has commercialized four items, including the multilayer metal power inductor MCOIL™ "LACNF2012KKTR24MAB" (2.0 x 1.25 x 1.0 mm, maximum height value shown), which complies with the "AEC-Q200" reliability qualification test standard for passive automotive components. Through advancements made in our proprietary metal materials and multilayer construction methods, we have achieved an upper operating temperature limit of 165°C for a multilayer metal power inductor, a world’s first *1 .　　These products are used as choke coils in DC-DC converters used in automotive engine ECUs, control systems such as BMS, safety systems such as ABS, body-related systems such as ADAS, and information systems such as instrument clusters.　　By extending the upper operating temperature limit range of our conventional product "LCCNF2012KKTR24MAD" (operating temperature range: -55°C to +150°C) to 165°C, these new products are able to contribute to the miniaturization and performance enhancement of power supply circuits by enabling high-density mounting in high-temperature environments such as in automobiles.　　Mass production of these products began at our subsidiary, WAKAYAMATAIYO YUDEN CO., LTD. (Inami-cho, Hidaka-gun, Wakayama Prefecture, Japan), in April 2024. Samples are available for 50 yen per unit.　　The advancements that we have seen in recent years in electronic controls in production vehicles, as typified by ADAS units, has led to a greater number of power supply circuits on vehicles, which in turn has led to growth in the demand for power inductors that are used in these circuits. Furthermore, performance also continues to improve through functional integration, such as in integrated cockpits that combine instrument clusters and infotainment devices. While the throughput of IC chips continues to grow as these devices become increasingly multifunctional and high-performance, there is also a growing need to make on-board electronic components smaller and thinner in order to arrange devices in highly dense configurations and integrate them into single modules. Components mounted at high densities become more susceptible to the effects of heat, as their reduced volumes makes it more difficult for the heat generated by the components to dissipate. Furthermore, since ECUs are increasingly being installed in engine compartments—a high temperature environment—on-board electronic components must be able to withstand high temperatures.　　To address these challenges, TAIYO YUDEN further improved the reliability of the MCOIL™ LCCN series of multilayer metal power inductors, which had the advantage of being smaller and thinner, and launched the AEC-Q200 certified LACN series which provides an extended operating temperature range of - 55°C to +165°C.　　TAIYO YUDEN focuses on the development of products that meet market needs, and will continue to expand its power inductor product lineup.　　*1 As of May 30, 2024, according to TAIYO YUDEN study.　　■Application　　Choke coils in DC-DC converters used in automotive engine ECUs, control systems such as BMS, safety systems such as ABS, body-related systems such as ADAS, and information systems such as instrument clusters.　　■Characteristics　　*2 The saturation current value (Idc1) is the DC current value having inductance decrease down to 30%. (at 20℃)　　*3 The temperature rise current value(Idc2) is the DC current value having temperature increase up to 40℃. (at 20℃)　　*4 The rated current is the DC current value that satisfies both of current value saturation current value and temperature rise current value.　　* Derating of rated current is necessary depending on the ambient temperature. Please see our website below for detailed specifications
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Release time：2025-05-30 14:21 reading：277 Continue reading>>
TAIYO YUDEN Expands Lineup of Multilayer Metal Power Inductors for Smartphones
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TAIYO YUDEN Expands Lineup of Multilayer Metal Power Inductors for Smartphones

　　TAIYO YUDEN CO., LTD. has begun mass production of three products, including the LSCND1412FETR47ME (1.4 x 1.2 x 0.65 mm; maximum height shown), in its MCOIL™ LSCN series of multilayer metal power inductors.　　These power inductors are for use as choke coils in the power circuits of smartphones. Retaining the same form factor as our previous product "LSCND1412FETR47MC" (1.4 x 1.2 x 0.65 mm), the DC superposition allowable current of our new "LSCND1412FETR47ME" has been increased by 20% to 3.6 A (previously 3.0 A), and its DC resistance has been reduced by 10% to 38 mΩ (previously 42 mΩ). These improvements contribute to boosting the performance of power supply circuits in smartphones, which are becoming increasingly sophisticated and multifunctional.　　Mass production of these products commenced at our subsidiary WAKAYAMATAIYO YUDEN CO. LTD. (Inami-cho, Hidaka-gun, Wakayama Prefecture, Japan). Samples are available for 50 yen per unit.　　Technology Background　　Smartphones are becoming increasingly sophisticated, with capabilities such as AI-based image and video editing, as well as voice and text translation. At the same time, there is demand for greater efficiency in order to keep their body small, and achieve long operating times with limited battery capacity. To achieve both high performance and high efficiency, a smartphone’s processor operates at high speeds with low voltage and high current, and employs a multi-core configuration where each core is equipped with its own power supply circuit, allowing it to improve both its processing power and efficiency by switching the cores used depending on load. This trend in power supply circuits has become particularly pronounced in cutting-edge smartphones, which require both high performance and high efficiency, and in recent years has led to an increase in the adoption of small and thin low-inductance power inductors capable of handling large currents.　　To address these needs, at TAIYO YUDEN we have been using metallic magnetic materials with high DC superposition characteristics to optimize the design and other aspects of our MCOIL™ LSCN series multilayer metal power inductors—which have the advantage of allowing them to be made more compact and thinner—commercializing three products, including “LSCND1412FETR47ME,” which deliver 20% greater DC superposition allowable current and 10% smaller DC resistance compared to our previous products.　　In response to market needs, we will continue to expand and improve our product lineup with higher functionality and reliability, as well as smaller and thinner products.　　■ Application　　For use as a choke coil for power circuits in smartphones and other devices.　　■Characteristics　　*1 The saturation current value (Idc1) is the DC current value having inductance decrease down to 30%. (at 20℃)　　*2 The temperature rise current value(Idc2) is the DC current value having temperature increase up to 40℃. (at 20℃)　　*3 The rated current value is following either Idc1(max) or Idc2(max), which is the lower one.　　* “MCOIL” is a registered trademark or a trademark of TAIYO YUDEN CO., LTD. in Japan and other countries.　　* The names of series noted in the text are excerpted from part numbers that indicate the types and characteristics of the products, and therefore are neither product names nor trademarks.
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Release time：2025-05-30 13:51 reading：325 Continue reading>>
ROHM Develops Compact Surface-Mount Near-Infrared LEDs Featuring Industry-Leading* Radiant Intensity
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ROHM Develops Compact Surface-Mount Near-Infrared LEDs Featuring Industry-Leading* Radiant Intensity

　　ROHM has expanded its portfolio of surface-mount near-infrared (NIR) LEDs with new compact top-view types. They are optimized for applications such as VR/AR devices, industrial optical sensors, and human detection sensors.　　The demand for advanced sensing technologies utilizing near-infrared (NIR) has grown in recent years, particularly in VR/AR equipment and biosensing devices. These technologies are used in applications such as eye tracking, iris recognition, and blood flow/oxygen saturation measurements that require high accuracy. At the same time, miniaturization, energy efficiency, and design flexibility are becoming increasingly important. In industrial equipment, near-infrared LEDs are playing a greater role with the rise of precise printer control and automation systems. In response, ROHM is expanding customer options by developing a lineup of compact packages and wavelengths that offer greater design flexibility, while contributing to higher precision and power savings by achieving high radiant intensity.　　The new lineup consists of six models in three package configurations, including two ultra-compact (1.0mm × 0.6mm), ultra-thin (t=0.2mm) products as part of the PICOLED™ series: SML-P14RW and SML-P14R3W. In addition, there are four variants in the industry-standard (1.6mm × 0.8mm) size, featuring a narrow beam circular lens package (CSL0902RT, CSL0902R3T) and flat lens design that emits light over a wide range (CSL1002RT, CSL1002R3T). Each package is available in two wavelengths, 850nm (860nm for the SML-P14RW) and 940nm, allowing customers various options for their specific application needs. The 850nm wavelength is ideal for phototransistors and camera sensors, making it suitable for high-sensitivity applications such as eye tracking and object detection in VR/AR. At the same time, the 940nm wavelength is less affected by sunlight and does not appear red when emitting light, making it suitable for motion sensors. It is also widely used in biosensing applications such as pulse oximeters to measure blood flow and oxygen saturation (SpO2).　　The light source incorporates an NIR element with an optimized emission layer structure utilizing proprietary technology developed through in-house manufacturing expertise. This has made it possible to achieve industry-leading* radiant intensity in a compact package, which was previously considered difficult. For example, compared to a standard 1006 size product, the SML-P14RW delivers approx. 1.4 times the radiant intensity at the same current. In other words, the SML-P14RW consumes 30% less power to achieve the same radiation intensity. This technology improves sensing accuracy and power savings for the entire system.　　Going forward, ROHM will continue to provide innovative light source solutions that support next-generation sensing technologies, creating new value in the VR/AR and industrial equipment markets, while contributing to the realization of a sustainable society.　　Compact NIR LED Lineup　　*1:Ta=25°C *2:IF=30mA *3:IF=20mA　　ROHM also offers NIR-sensitive phototransistors.　　Application Examples　　• VR/AR licenses (eye tracking, gesture recognition)　　• Pulse oximeters (blood flow/oxygen saturation measurement)　　• Industrial optical sensors (object passage detection, position detection), self-checkout systems (bill/card detection), mobile printers (paper detection)　　• Home appliance remote controls (IR data communication), robot vacuum cleaners (floor detection)　　Terminology　　VR/AR (Virtual Reality/Augmented Reality)　　Virtual reality immerses users in a completely digital environment through small high-resolution monitors or screens within an enclosed space. Augmented reality enhances the real world by overlaying digital content onto a headset or smart glasses, enabling users to interact with 3D images. Collectively, these technologies are sometimes referred to as XR (Cross Reality or Extended Reality).　　Near-Infrared (NIR)　　Refers to light in the wavelength range of 780nm to 1000nm. Primarily used in sensors, communication and measurement applications, it is suitable for high accuracy distance measurement and recognition.　　PICOLED™ Series　　ROHM's ultra-small, ultra-thin chip LEDs designed for compact mobile devices and wearables, developed using a proprietary element manufacturing process.　　Radiant Intensity　　An index representing the strength of energy emitted by a light-emitting device in a specific direction (unit: W/sr). This is an important factor that affects the LED’s output intensity and detection performance on the receiving side.　　Note: DigiKey™, Mouser™ and Farnell™ are trademarks or registered trademarks of their respective companies.　　*PICOLED™ is a trademark or registered trademark of ROHM Co., Ltd.
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Release time：2025-05-26 14:54 reading：345 Continue reading>>

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