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:
May. 31, 1977
Filed:
Jun. 11, 1975
Applicant:
Inventor:
Richard C Johnson, Pasedena, CA (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
3152 / ; 315225 ; 315239 ; 315240 ; 320-1 ;
Abstract
An improved energy conversion apparatus for use in charging energy storage capacitors for energizing flash lamp devices. A transformer has a primary winding coupled to a low voltage DC source and transistor switches and a secondary winding coupled to a chargeable capacitor. The transistor switches are turned on or off in response to current signals in the primary and secondary windings. A detection circuit senses the energy stored in the capacitor and supplies signals to the transistor switches to maintain energy stored in the capacitor at a predetermined level.