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. 10, 1976
Filed:
Aug. 28, 1974
William C Staker, Springfield, OH (US);
Richard N Lehnhoff, Dayton, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
The terminal ends of a center tapped primary transformer winding are connected to the positive polarity direct current input terminal through the anode-cathode electrodes of respective power silicone controlled rectifiers which are alternately triggered conductive and the center tap is connected to the negative polarity direct current input terminal. Simultaneously with each power silicon controlled rectifier, a corresponding commutating capacitor charge circuit silicon controlled rectifier is triggered conductive to establish a charge circuit for the corresponding commutating capacitor across the direct current input terminals. Each power silicon controlled rectifier is commutated not conductive by the charge upon the corresponding commutating capacitor applied in an inverse polarity relationship across the anode-cathode electrodes thereof through a commutating silicon controlled rectifier. The transformer secondary winding output is rectified and filtered to supply a direct current potential to a connected load.