Electronics Weekly

Updated: ‘Safe’ all-npn reversing motor drive for Arduino

A teacher I know is stuck, with only npn transistors in the supply cupboard and the need to create a reversible motor drive for an Arduino project. Reversing ‘bridges’ have four switches (relay ...
Semiconductor Engineering

Gate Drive Circuit Without A Speed-Up Capacitor for a GaN Gate Injection Transistor

A technical paper titled “Gate Drive Circuit Suitable for a GaN Gate Injection Transistor” was published by researchers at Nagoya University. “A GaN gate injection transistor (GIT) has great potential ...
EDN

Design and Application Guide of Bootstrap Circuit for High-Voltage Gate-Drive IC

The purpose of this paper is to demonstrate a systematic approach to design high-performance bootstrap gate drive circuits for high-frequency, high-power, and high-efficiency switching applications ...
Electronics Weekly

And a better discrete high-side mosfet gate drive

Having thought up and simulated a drive circuit for the synchronous rectifier in a Cuk converter, I thought I would wrap it all up by appling the things I learned to the original circuit – a high-side ...
Electronic Design

Miniaturized Series of Gate-Drive Transformers

TDK-EPC has developed a new series of EPCOS EP5 SMT pulse transformers. They are used to couple gate-drive circuits to MOSFETs and IGBTs operating at switching frequencies within a range of 150 kHz to ...
Electronic Design

MOSFET Synchronous Rectifiers Require Attention to Gate Charge

The switching speed of a power MOSFET charge-controlled device depends on the speed with which an associated gate driver circuit can charge its input capacitance. For the last 20 years, many excellent ...