Patent · US Active

Electronic circuit and method for triggering a semiconductor switch

US9602031B2 · kind B2 · utility

1Cited by

1References

9Claims

0Family size

Assignee

ebm-papst Mulfingen GmbH & Co. KG · DE

Inventors

Helmut Lipp · Assamstadt, DE
Ralph Wystup · Künzelsau, DE
Fabian Schneider · Darmstadt, DE
Sebastian Schroth · Kupferzell, DE

Key dates

Filing date	Nov 24, 2011
Grant date	Mar 21, 2017
Priority date	—
Expiry date	Dec 25, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electronic circuit comprises at least one semiconductor switch mounted with its switching path in series with an inductive load to be triggered, and at least one freewheeling element that interacts with the semiconductor switch during switching phases and is also mounted in series with the load. A control unit controls a control connection of the semiconductor switch with a variable control current as a function of the time profile of a voltage measured at the freewheeling element and/or as a function of the time profile of the voltage measured at the switching path. A method for triggering a semiconductor switch of such a circuit, triggered by a variable control current for switching, the control current predefined as a function of the time profile of a voltage measured at the freewheeling element and/or as a function of the time profile of the voltage measured at the switching path.

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