Patent · US Expired

Controlled rectifier bridge with over-voltage protection

US6353307B1 · kind B1 · utility

23Cited by

7References

4Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gerhard Koelle · Wiernsheim, DE
Albert Geiger · Fort Saskatchewan, CA
Christof Hackler · Bad Berleburg, DE

Key dates

Filing date	Jun 5, 2000
Grant date	Mar 5, 2002
Priority date	—
Expiry date	Jun 5, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH02H9/047
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A controlled rectifier bridge for a generator having a plurality of phase windings and one exciter winding is constructed as a self-controlled rectifier bridge with MOS field effect transistor. To allow the use of such a rectifier bridge upon a fast load reduction with an attendant load-dump voltage, a voltage protection circuit is employed that feeds the energy, stored in the exciter winding upon a fast shutoff, back into the battery, thus deexciting the exciter winding. Upon a fast load reduction, the generator windings are short-circuited by suitable triggering of the low- or high-side transistors.

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