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:
Mar. 23, 1982
Filed:
Oct. 05, 1978
Applicant:
Inventor:
Ronald O Hammel, Englewood, CO (US);
Assignee:
The Gates Rubber Company, Denver, CO (US);
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 14 ; 320 21 ; 320 39 ; 320 59 ;
Abstract
A transformerless battery charging circuit is described including a rectifier, a semiconductor switch in series with the battery, a sensing network monitoring battery voltage, a trigger circuit responsive to the sensed battery voltage for controlling operation of the semiconductor switch, and a voltage regulator for regulating output voltage of the rectifier as supplied to the triggering and battery voltage sensing networks. The circuitry in combination with an appropriate rechargeable battery also serves as a power supply to drive a DC load connected to the battery.