John Gallagher from Pulse Electronics recently spoke with us about some of the things design engineers and circuit designers need to know when they’re working with a company that makes transformers and inductors. He says a lot of circuit designers look at transformers as ideal transformers –there’s just a certain number of turns in the […]
Special challenges of using inductors in wide-bandgap semiconductor circuits
Dave Munguia from Pulse Electronics recently explained to us that when you’re working with gallium-nitride transistors and other wide-bandgap semiconductors, there are special challenges associated with inductors. Pulse Electronics addressed the issue in a paper they delivered at APEC 2019. Munguia says they picked five different constructions of inductors from the catalogs of different manufacturers. […]
Power Electronics Top Talks in March 2019 on EDABoard.com
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com VFD to control 3-phase AC induction motor – I want to control the speed of a woodcutter that is equipped with […]
Magnetically shielded inductors perform in class D amplifiers
Sumida’s magnetically shielded DEP1519B Series Power Inductors are designed for applications in class D digital audio amplifiers, as well as in dc/dc converters and other low-pass filter applications. To minimize internal resistance at high frequencies, high surface area flat-wire is used for the windings. The flat wires also allow more compact construction with higher current […]
Inductors target EMC compliance apps in dc-dc converters
Units of the RLS line inductor series have been pre-tested to meet both conducted and radiated interference limits. It is often necessary to add additional filter components to a dc/dc converter module to meet Class A or Class B EMC limits. To build such an EMC filter, inductors from a range of different manufacturers can […]
Miniaturized thin-film metal power inductors target ADAS applications
TDK Corporation announces the TFM252012ALVA thin-film metal power inductors that can be connected directly to a 12 V car battery while maintaining small dimensions with a footprint of just 2.5 mm × 2.0 mm and a height of 1.2 mm. Thanks to the magnetic metal core these newly developed inductors offer a rated current of […]
Miniature low-profile power inductors target high-density DC/DC converter apps
TT Electronics has introduced the HA74 series of surface-mount power inductors, which combine a low profile, small footprint, and 3MHz switching capability for efficient, space-saving DC/DC converters. AEC-Q200 certified and specified for operation from -55°C to +155°C, the HA74 series is ideal for automotive use cases including the latest generation of high-density converters and pi […]
Double chokes offer 2 kV isolation
The WE-CPIB HV double chokes feature 2 kV isolation voltage and are offered in a 4828 package, making it the smallest of its type in the Würth Elektronik eiSos portfolio. The 1:1 transformer is magnetically shielded and offers functional isolation for a working voltage of 250 VRMS. The double choke offers better leakage inductance (LS) and resistance […]
Shielded drum inductors target automotive apps
The new CDRH50D28B/T150 Shielded Drum inductor for a broad range of automotive applications is based on Sumida’s Ni-Zn ferrite core technology, this power inductor is highly space-efficient and complies with automotive reliability standard, AEC-Q200. It is applicable to ADAS and other automotive applications which require a small footprint and high-inductance value (max. 100 µH). Product […]
Power Electronics Top Talks in December on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Favorite low phase shift 240Vrms detector – I have a requirement for a very low phase shift, galvanically isolated, zero cross detector […]
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