Patent · US Active

Paralleling power switches using a differential mode choke in the gate drive loop

US10461733B2 · kind B2 · utility

2Cited by

3References

23Claims

0Family size

Assignee

POWER INTEGRATIONS, INC. · US

Inventors

Karsten Fink · Werl, DE
Christoph Dustert · Soest, DE
Andreas Volke · Soest, DE
Michael Hornkamp · Ense, DE
Martin Ulbrich · Soest, DE

Key dates

Filing date	Apr 14, 2016
Grant date	Oct 29, 2019
Priority date	—
Expiry date	May 11, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/168
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

In one aspect, a device includes a first power switch having a first gate, a second power switch paralleled with the first power switch and having a second gate, a gate driver to output a gate drive signal to drive both the first gate and the second gate, a first conduction path to couple the gate drive signal to the first gate, a second conduction path to couple the gate drive signal to the second gate, and a distribution choke to distribute the gate drive signal to the first and second power switches. The distribution choke has a first winding disposed in the first conduction path and a second winding disposed in the second conduction path. The distribution choke is coupled in a differential mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.