An ac-dc converter is commonly used in many devices. Also called a rectifier, it converts alternating current (AC) to direct current (DC). Most electronic devices, such as computers, smartphones, and electronic circuits, operate on DC power. However, there are different ways to convert AC into DC power (as discussed in the previous AC-to-DC conversion article). For…

CUI Inc., a Bel group company, announced the release of its PTP15 Series — a 15 W, 5 Pin DIP isolated DC-DC converter, specialized for medical instrumentation and home medical supplies. Offering 4000 Vac isolation or 5600 Vdc isolation with a 2:1 input voltage range, the series is compliant with the IEC/EN 60601-1 and EN…

CUI Inc., a Bel group company, has recently introduced the PQC30-O, PQC50-O, and PQC75-O series to expand its line of isolated dc-dc converters. The new converters are designed with a 36~75 Vdc input range and are presented in an economical and slim, open-frame, 1/16th brick form factor. The PQC-O series is tailored specifically for telecom…

Renesas Electronics Corporation and Nidec Corporation have joined forces to develop semiconductor solutions for the next-generation E-Axle (X-in-1 system), which integrates an electric vehicle (EV) drive motor and power electronics for EVs. Today’s EVs are increasingly adopting the 3-in-1 unit called E-Axle, which integrates a motor, inverter, and gearbox (reduction gear). To ensure high performance…

The STMicroelectronics L6983i 10W isolated buck (iso-buck) converter ensures high efficiency and a compact footprint — with advantages including low quiescent current and 3.5V-38V input-voltage range. The L6983i is suitable for applications that require an isolated DC-DC converter. It implements an iso-buck topology, which uses fewer components than a conventional isolated flyback converter and requires no…

CUI Inc, a Bel group company, announced the addition of two isolated dc-dc converters with the PQQC3-OS and PQQC6-OS series — featuring a 2:1 input range, 36~75 Vdc, and a single regulated output. The series is certified to 62368 safety standards for CE and UKCA and are suited for a variety of industrial, test & measurement, and…

Renesas Electronics Corporation, a supplier of advanced semiconductor solutions, presented advancements in charging technology for mobile devices at the prestigious International Solid-State Circuits Conference (ISSCC) in San Francisco, last week. During the conference, Renesas described its single-chip wireless power transmitter solution that measures AC and DC transmitter power for improved accuracy and safety. The presentation…

Vishay Intertechnology has introduced the first AEC-Q200-qualified IHSR high-temperature inductor with current ratings to 155 A. This is for the 19.0 x 17.1 x 7.0 mm 6767 case size. Designed for multi-phase, high-current power supplies and input and output filters in automotive under the hood and ADAS applications, the Vishay Dale IHSR-6767GZ-5A offers a 50%…

Contemporary server, communication, and network storage applications struggle to minimize power losses and solution size. The rapidly changing market also requires system solution providers to address market needs faster than usual. To address these issues, Infineon Technologies has introduced highly efficient and reliable step-down DC-DC converter modules. Adding to the point-of-load (POL) family, these modules…

The increasing demand for high-power density is pushing developers to adopt 1500 VDC link in their applications to increase the rated power-per-inverter and reduce system costs. However, 1500 VDC-based systems also pose more challenges on the system design, such as fast switching at high DC voltage, which typically requires a multi-level topology. This leads to…

CUI Inc., a Bel group company, has announced the expansion of its PRQ Isolated dc-dc converters line, which provides a lower cost alternative to VHK models and high-wattage power solution. The PRQ150W-D and PRQ200W-D are EN 62368-1 certified 150W and 200W quarter-brick dc-dc converters housed in fully encapsulated aluminum alloy cases. They are suited for designers working on…

Diodes Incorporated has introduced the DGD0579U high and low-side gate driver. This high-frequency device, which has a built-in bootstrap diode, is capable of driving two N-channel MOSFETs in the half-bridge configurations that are commonly used for motor control and DC-DC power delivery functions. It also targets high-power applications, such as cordless power tools, e-bikes, and…

Space system designers cannot easily support non-standard voltages or add functions with traditional hybrid-style power converters. Microchip Technology has eliminated the cost, complexity, and customization challenges of these hybrid solutions by offering a discrete-component-based, space-grade DC-DC power converter family that now includes 28V-input, 50-watt (W) radiation-tolerant options. “Our latest 28V-input SA50-28 products greatly simplify and accelerate…

Featuring a synchronous topology for optimum efficiency, the new STMicroelectronics STPD01 DC/DC buck converter is digitally programmable for USB power-delivery (PD) applications up to 60W. With a wide input-voltage range of 6 to 26.4V, the STPD01 offers flexibility to address applications such as AC multiport adapters, USB hubs, PC monitors, and smart televisions. The output…

Renesas Electronics Corporation, a supplier of advanced semiconductor solutions, is introducing the RAA227063 Smart Gate Driver for brushless DC (BLDC) motor applications. The new device is programmable via an SPI interface, enabling it to support both motors with rotor position sensors and sensorless applications. It also provides programmable gate-drive voltage, offering support for N-channel MOSFETs…

Renesas Electronics Corporation, a supplier of advanced semiconductor solutions, has introduced the R9A06G061 power-line communication (PLC) modem IC. The R9A06G061 delivers high-speed communication at up to 1Mbps over long distances of a kilometer or more — without the need for relays, expanding the range of practical applications for PLC. Optimized analog peripheral functions reduce the…

Vishay Intertechnology has introduced the industry’s first high-voltage chip divider to be offered in a ribbed, molded package with compliant surface-mount leads. Designed to reduce component counts and improve TC tracking performance and ratio stability in automotive and industrial equipment, the Vishay Techno CDMM delivers a maximum working voltage of 1500 V in the 4527 case…

Vishay Intertechnology has introduced a new IHVR vertical-mount inductor in the 10.25 mm by 6.4 x 10mm, 4025 case size. Optimizing inductance and minimizing DCR for increased efficiency in DC/DC converters, the newly designed Vishay Dale IHVR-4025JZ-3Z offers high temperature operation (up to +155° C) for computer, server, telecom, and industrial applications. Compared to traditional…

STMicroelectronics’ STGAP2SiCSN single-channel gate driver, optimized to control silicon-carbide MOSFETs, now comes in a space-saving, narrow-body SO-8 package and delivers reliable performance with accurate PWM control. As SiC technology becomes widely adopted to boost power-conversion efficiency, the STGAP2SiCSN simplifies design, saves space, and enhances robustness and reliability in energy-conscious power systems, drives, and controls. Applications include…

Texas Instruments (TI) recently introduced the industry’s smallest and most accurate 1.5-W isolated DC/DC bias-supply module. The UCC14240-Q1 uses a proprietary integrated transformer technology to enable designers to cut their power solution size in half for use in high-voltage environments such as electric vehicles (EVs), hybrid EVs, motor-drive systems, and grid-tied inverters. With the accelerating…