The EHM-UNIV from Xidas is a small surface-mount energy harvesting and power management module that eliminates the need for engineers to purchase energy harvesting evaluation modules and determine how to engineer power management ICs into their application. Xidas has spent over two years working in partnership with the US National Science Foundation (NSF) to address […]
Power Electronic Tips
General-purpose high-current, high-voltage power supplies include isolated outputs
Lumina Power has announced the release of the new 10 Channel LPS series general purpose high current, high voltage power supplies for the Electroplating and Specialty Markets. The new 10 Channel Series includes two sets of isolated outputs, with five individual outputs per set. Each set has its own common cathode. The new line consists of 5 […]
24-V input, -40/-60-V withstand voltage P-channel MOSFETs available in single, dual configurations
ROHM Semiconductor announced a 24-model lineup of 24V input, -40V / -60V withstand voltage P-channel MOSFETs available in both single (RqxxxxxAT / RdxxxxxAT / RsxxxxxAT / RFxxxxxAT) and dual configurations (UTxxx5/QHxxx5/SHxxx5). These new devices are ideal for industrial and consumer applications, such as factory automation, robotics, and air conditioning systems. In recent years, as demand […]
PCB power relays meet glow-wire test requirements
Fujitsu Components America, Inc. released a DPST/DPDT 5A PCB power relay series that meets glow-wire test requirements of the IEC/EN60335-1 standard, which addresses the safe operation of consumer and commercial electrical appliances. The low-profile (16.5mm) FTR-F1-GW relay series is rated from 1.5 to 110V. Designed for safety, it features a reinforced insulation construction, 8mm (min) […]
Energy-meter eval board combines low-cost sensors and galvanic isolation
A new evaluation board from STMicroelectronics speeds design of 3-phase AC Watt meters that meet the most stringent international quality and accuracy standards using low-cost, electromagnetic-immune shunt sensors and advanced galvanic-isolation technology for superior reliability and robustness. The EVALSTPM-3PHISO evaluation board combines the high-accuracy STPMS2 metering front-end IC and the advanced STISO621 digital isolator, with customizable turn-key firmware […]
High-power 650V/800V GaN ICs combine power FET and gate driver
Navitas Semiconductor announced the NV6128, a new high-power 650V/800V-rated GaNFast power IC to address the high-power mobile and consumer power electronics market and take market share from the old, slow, silicon chip. The 70 mOhm NV6128 represents a 66% increase in current capability, in a small, 6 x 8 mm PQFN package with a proprietary, […]
eGaN DC-DC demo board comes in tiny 1/16th brick size
EPC announces the availability of the EPC9157, a 300 W DC-DC demo board in the tiny 1/16th brick size, measuring just 33 mm x 22.9 mm x 9mm (1.3 x 0.9 x 0.35 in). The EPC9157 demo board integrates the Renesas ISL81806 80 V dual synchronous buck controller with the latest-generation EPC2218 eGaN FETs from […]
Reference design based on 4-kW high-efficiency single-phase ac-dc evaluation board
A new power supply reference design enables engineers to identify and correct design errors before building hardware, thereby lowering product costs and speeding time to market. Switched-mode power supplies provide greater efficiency, increased power density and lower overall system costs when using GaN devices. However, GaN, a high switching speed, high performance wide bandgap semiconductor, […]
Selecting dc-link capacitors for inverters
One key factor: Determining the nuances of how capacitors handle expected ripple currents. Sam G. Parler, Jr., P.E. Cornell Dubilier Examine a dc link capacitor’s ac ripple current and you’ll realize it arises from two main contributors: the incoming current from the energy source and the current drawn by the inverter. Of course, capacitors cannot […]
Hybrid lithium-ion supercaps deliver up to 220 F at 3.8 V
Cornell Dubilier Electronics introduces two new series of Hybrid LIC Supercapacitors in response to the growing need for ultra-high capacitance values at higher operating voltages. The new VMF and VPF Series operate at 3.8 WVDC with capacitance values up to 220 Farads. The higher voltage results in increased energy density. With nearly eight times the energy density and a […]