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:
Mar. 22, 1977
Filed:
Nov. 10, 1975
Applicant:
Inventors:
Lee Don Tice, Rolling Meadows, IL (US);
David Michael Drury, Mundelein, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 18 ; 361 91 ;
Abstract
When the load current of a voltage regulator rises above a safe value for sustained operation, a limiting circuit is activated to prevent further rise. At the same time, a capacitor in a timing circuit is being charged so that if the overload condition continues beyond a predetermined amount, the capacitor voltage will trigger a latching circuit to shut off the regulator. The regulator is reset by merely turning off the supply long enough to allow the capacitor to discharge.