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:
May. 12, 1987
Filed:
Apr. 01, 1985
Applicant:
Inventors:
Byron G Bynum, Tempe, AZ (US);
David L Cave, Tempe, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ; F02M / ; H03K / ;
U.S. Cl.
CPC ...
361 91 ; 123490 ; 307255 ; 307318 ; 3072 / ; 361111 ;
Abstract
An integrated circuit comprising a series pass transistor for sourcing current from the positive side of a battery to an inductive load includes integrated circuitry for providing a direct current conduction path between ground and the inductive load as the series pass transistor is turned off by the battery being disconnected therefrom during normal operation so that the stored inductive energy of the inductive load is dissipated. The integrated circuitry includes a silicon controlled rectifier (SCR) coupled between the output of the integrated circuit and ground as well as a Zener diode coupled between the gate and anode of the SCR.