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:
Sep. 21, 1976
Filed:
Apr. 10, 1974
Clyde Raymond Berry, Goleta, CA (US);
Robert J Cinzori, Santa Barbara, CA (US);
Hughes Aircraft Company, Culver City, CA (US);
Abstract
AC-DC voltage regulation is achieved utilizing, among other components, a series pass control element which is serially connected to a detector and filter output stage and between circuit input terminals and an output load. A rectified input voltage is applied to the series pass control element which controls the required amount of current flowing into a load every 1/2 cycle of the input signal. This current is, in turn, detected and filtered to provide the regulated DC output voltage. A voltage sensor is connected to the output of the series pass control element and in parallel with the detector and filter stage; this sensor breaks down at a predetermined level of series pass voltage to, in turn, generate a feedback control voltage. This control voltage is fed back to a current controlled switch which is connected in shunt with the series pass control element. This current controlled switch responds to the feedback voltage to accordingly limit the current conduction in the series pass control element to precisely the amount required by a varying load connected to the circuit output terminal. Thus, voltage regulation is achieved with a maximum AC-DC conversion efficiency and a minimum power dissipation.