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. 06, 1982
Filed:
May. 14, 1981
Samson K Toy, Sunnyvale, CA (US);
Boschert, Incorporated, Sunnyvale, CA (US);
Abstract
A high current, low voltage, regulated D.C. power supply incorporating a parallel pair of bridges connected across a D.C. supply and each having alternately switched opposite legs for producing across its output a relatively high frequency A.C. to a stepdown transformer. Each of the bridges is switched out of phase with the other to minimize output ripple in the combined D.C. produced from rectifiers at the secondary of the stepdown transformers. Regulation of the supply is provided by a current sensor at the secondary of each transformer which produces a signal that is compared with a signal representing D.C. output level to alter the duty cycle in the switching circuitry to the parallel bridges. The novel feature is that the regulation control circuits of two or more identical supplies may be coupled to produce master-slave power supply combinations capable of greatly increasing the output power capabilities.