Invention Grant
- Patent Title: Paralleling power switches using a differential mode choke in the gate drive loop
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Application No.: US15565398Application Date: 2016-04-14
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Publication No.: US10461733B2Publication Date: 2019-10-29
- Inventor: Karsten Fink , Christoph Dustert , Andreas Volke , Michael Hornkamp , Martin Ulbrich
- Applicant: Power Integrations, Inc.
- Applicant Address: US CA San Jose
- Assignee: Power Integrations, Inc.
- Current Assignee: Power Integrations, Inc.
- Current Assignee Address: US CA San Jose
- Agent Brian H. Floyd
- International Application: PCT/EP2016/058247 WO 20160414
- International Announcement: WO2016/166228 WO 20161020
- Main IPC: H03K17/12
- IPC: H03K17/12 ; H02M1/088 ; H03K17/14 ; H03K17/16

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.
Public/Granted literature
- US20180123579A1 PARALLELING POWER SWITCHES USING A DIFFERENTIAL MODE CHOKE IN THE GATE DRIVE LOOP Public/Granted day:2018-05-03
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