Patent · US Active

Circuit for driving a power switch

US10298112B2 · kind B2 · utility

0Cited by

0References

16Claims

0Family size

Assignees

DIALOG SEMICONDUCTOR INC. · DE
Dialog Semiconductor (UK) Limited · GB

Inventors

Horst Knoedgen · Munich, DE
Christoph Nagl · Graz, AT
Nebojsa Jelaca · Graz, AT
Kun Yang · 安丰镇, CN
Jung Woo Choi · Daejeon, KR

Key dates

Filing date	Sep 29, 2017
Grant date	May 21, 2019
Priority date	—
Expiry date	Sep 29, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/0081
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A circuit for driving a power switch is presented. The circuit includes a first power switch coupled to a second power switch via a switching node and a driver coupled to the first power switch, where the driver contains an energy storing element coupled to the switching node. The circuit also contains a sensor to sense an electrical parameter of the driver and a charger coupled to the sensor. The charger provides a charge current to charge the energy storage element, and to control the charge current based on the electrical parameter. In particular, a circuit for driving a power switch based on a III/V semiconductor is presented. In addition, a method of powering a power switch driver is presented. The method includes sensing an electrical parameter of the driver and adjusting a current to charge the energy storing element based on the electrical parameter.

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