Patent · US Expired

Power output stage for switching inductive loads with reduced radiation emission

US6531908B1 · kind B1 · utility

7Cited by

8References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gerhard Goeser · Pentling, DE
Mark Elliott · Regensburg, DE
Donald R. Preslar · Somerville, US

Key dates

Filing date	Sep 30, 1997
Grant date	Mar 11, 2003
Priority date	—
Expiry date	Sep 26, 2019

Classification

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

Abstract

A power output stage for switching inductive loads contains a series circuit having a load and a switching transistor. A series connected circuit formed of a blocking diode and a multiplicity of Zener diodes is disposed between the drain and gate electrodes of the switching transistor. A capacitor, a resistor or a series or parallel circuit of a capacitor and a resistor is disposed in parallel with at least one of the Zener diodes. The circuit configuration rounds off the pronounced kink in the drain voltage when the Zener protection cuts in during a switched state of the switching transistor.

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