Patent · US Active

Output stage having zener voltage balancing

US8283963B2 · kind B2 · utility

1Cited by

14References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Uwe Lueders · Reutlingen, DE
Juergen Eckhardt · Markgröningen, DE
Bernd Mueller · Leonberg, DE

Key dates

Filing date	Mar 31, 2006
Grant date	Oct 9, 2012
Priority date	—
Expiry date	Dec 29, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/0822
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An output stage, especially a switching output stage for switching inductive loads, having a plurality of individual output stages that are connected in parallel, which include degenerative transistors, in the degenerative path of which one respective Zener diode is present. The electric power during a switching-off process can be distributed in a particularly uniform manner to the individual output stages or transistors by disposing the Zener diodes near the associated transistors so that they are thermally coupled to the respectively associated transistor and their Zener voltage increases with increasing temperature.

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