The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 1996
Filed:
Jun. 16, 1994
Manfred Uebele, Reutlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A monolithically integrated power output stage detects the load current through an output-stage transistor. Switch logic coupled to an output transistor is for switching the output transistor when a predetermined load-current threshold is reached. In this connection, the output transistor is integrated in a separate insulated .pi.-well which contains, in addition, a diode which couples the .pi.-region of the .pi.-well to a ground terminal. This limits the maximum potential to a forward voltage of more than 0 volts and thereby prevents malfunction in normal operation since it leads shift currents in low-resistance to ground by capacitive coupling upon an increase in the voltage of the collector of the output-stage transistor.