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:
Feb. 14, 1978
Filed:
Jun. 21, 1976
Jean M Orban, Santa Monica, CA (US);
Vivitar Corporation, Santa Monica, CA (US);
Abstract
There is disclosed herein a voltage regulator for a power supply for load devices such as electronic photoflash units. The voltage regulator supplies power to charge the main capacitor of the photoflash unit to an appropriate voltage, and uses a semiconductor series regulator circuit. The voltage regulator provides medium-to-long term heat integration to terminate power supplied to the electronic flash unit in the event of a thermal overload in order to protect the electronic flash unit. The circuit includes a ready indicator to indicate when the main capacitor of the flash unit has reached the appropriate charge, and also includes an overload indicator to indicate an overload condition.