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. 19, 1983
Filed:
Aug. 31, 1981
Leroy W Nero, Indianapolis, IN (US);
RCA Corporation, New York, NY (US);
Abstract
In a television receiver having a picture tube that requires an ultor accelerating potential and an intermediate direct voltage, such as a focus voltage, a high voltage generator is provided that develops the two voltages. A source of alternating voltage is coupled to a primary winding of a transformer for developing an alternating polarity voltage across each of two high voltage secondary windings. A first voltage doubler is coupled to the first high voltage winding for rectifying the alternating polarity voltage developed across the winding during both polarity intervals thereof to produce a first direct voltage. The first direct voltage is applied to an intermediate voltage terminal to generate the picture tube intermediate direct voltage between that terminal and a reference terminal. A second voltage doubler is coupled to the second high voltage winding for rectifying the alternating polarity voltage developed across the winding during both polarity intervals thereof to produce a second direct voltage. The first and second direct voltages are combined and applied to an ultor terminal to generate the picture tube ultor accelerating potential between this terminal and the reference terminal.