EDN

Transistors suit motor control apps

With a collector-emitter voltage of 60 V, the ZX5T851Z (npn) and ZX5T951Z (pnp) bipolar transistors can handle the voltage demands of medium-power motor drive circuits. Features of the SOT89-packaged ...
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

Bipolar transistors aid motor control apps

Able to withstand the voltage demands of medium-power motor drive circuits, ZX5T851Z npn and ZX5T951Z pnp bipolar transistors accommodate stall currents and help to keep on-state losses to a minimum.
Electronic Design

GaN Transistors – Drive Control, Thermal Management, and Isolation

This year, several companies are expected to bring 600/650 V Gallium Nitride (GaN) power transistors to market. Almost all will be normally-on (depletion mode) transistors connected in a cascode ...
Machine Design

Precision motion evolution: Early history of precision motors (1960s to 1980s)

In 1960, the large-angle type PM step motor was the most used step motor. This two-phase, bifilar wound PM step motor (top) advanced 45° mechanical with each pulse from the drive, while by 1962 PM ...