Patent · US Expired

Electronic circuit device

US5068703A · kind A · utility

25Cited by

4References

32Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gerhard Conzelmann · Echterdingen, DE
Dietmar Haack · Springe, DE
Gerhard Fiedler · Neckartailfingen, DE

Key dates

Filing date	Apr 12, 1990
Grant date	Nov 26, 1991
Priority date	—
Expiry date	Apr 12, 2010

Classification

Technology area (CPC H)Electricity
CPC primaryH10D84/125
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An electronic circuit device having a monolithic integrated power transistor is disclosed that comprises a parallel connection of a plurality of individual partial transistors (1, 2, 3, . . . , n). In order to stabilize the distribution of the sum current to the individual partial transistors (1, 2, 3, . . . , n) resistors (41, 42, 43, . . . 4n) are provided in their emitter lines. At least one of the resistors (41, 42, 43, . . . 4n) in the emitter lines of the partial transistors (1, 2, 3, . . . , n) serves as measurement resistor for producing a signal voltage proportional to the current to provide an electronic circuit device having current regulation or current limiting, as shown in FIG. 2.

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