Programmed battery charging system

• US 3,921,050 A
• Filed: 10/02/1974
• Issued: 11/18/1975
• Est. Priority Date: 10/02/1974
• Status: Expired due to Term

• Current Assignee: Clifford A. Rowas
• Original Assignee: Clifford A. Rowas
• Inventors: Rowas, Clifford A.
• Primary Examiner(s): Miller, J. D.
• Assistant Examiner(s): Hickey, Robert J.
• Application Number:
  US05/511,318
• Time in Patent Office: 412 Days
• Field of Search: 320/14-21,2-5,37,38,43 307/41
• US Class Current: 320/119
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: Y10S 320/21 State of charge of battery

Abstract

A circuit controlling a battery charging system adapted to progressively boost charge a succession of banks of series connected, newly manufactured batteries, said circuit including a stand-by switch means adapted to periodically initiate the battery charging system whereby to maintain all the batteries in satisfactory charged conditions for the ultimate users thereof.

Claims

1. In a programmed battery charging system the combination of a fully regulated, constant current boost charging circuit, a plurality of banks, each bank having a number of series connected batteries therein, a conductor connecting each bank of batteries to the charging circuit, a series of first switches each interposed in a conductor, a stand-by circuit connected across the charging circuit, a visible indicator means and a second switch interposed in series in the stand-by circuit, and a continuously operable sequence control means adapted to progressively actuate and disconnect each first switch to boost charge successive banks of batteries, then actuate the second switch to monitor a non-charging period of the system and finally initiate the boost charging circuit following the non-charging period.

2. In a programmed battery charging system as set forth in claim 1 wherein all the first switches and the second switch are controlled rectifiers.

3. In a programmed battery charging system as set forth in claim 1 wherein a power unit operates the sequence control means, and a center tapped memory battery assembly is connected to the power unit.