Herbert W Bilsky

US Patent:

42812780, Jul 28, 1981

Filed:

Dec 5, 1979

Appl. No.:

6/100454

Inventors:

Herbert W. Bilsky - Lawrenceville NJ
Patrick J. Callen - Yardley PA

Assignee:

RCA Corporation - New York NY

International Classification:

H02J 710
H01L 3100

US Classification:

320 13

Abstract:

A satellite power system in which solar cells provide power to a load during sunlight hours and also charge, through regulators, rechargeable batteries which provide power during dark periods. In order to prevent the batteries from being overcharged by solar cell current bypassing the regulators (through the load connection) each battery is protected by a redundant protection system including a pair of diodes and switch means normally connecting one of the diodes between the battery and the load. If the one diode fails or shorts, the switch means connects the other diode between the battery and the load; the voltage across the one diode and current therethrough are sensed to determine if the diode has failed.

US Patent:

39978303, Dec 14, 1976

Filed:

Nov 27, 1974

Appl. No.:

5/527835

Inventors:

Richard Abbott Newell - Fair Haven NJ
Joel Herman Bacher - Kendall Park NJ
Herbert Walter Bilsky - Trenton NJ
Patrick Joseph Callen - Yardley PA

Assignee:

RCA Corporation - New York NY

International Classification:

H02K 700

US Classification:

320 5

Abstract:

Reduction of battery effectiveness due to memory effect and unequal cell voltages is minimized by a spacecraft power control system which reconditions the battery preferably just prior to eclipse seasons of a geo-stationary orbit by discharging each battery cell through a network of shunting resistors. Recharging is accomplished by a low power dissipation charging sequence. The load of the system, except for during the eclipse season, is receiving power continuously from the solar cells and during peak load requirements receives supplementary power from the battery cells. During the eclipse seasons, the system power is supplied solely by the battery cells.

US Patent:

43130780, Jan 26, 1982

Filed:

Dec 5, 1979

Appl. No.:

6/100455

Inventors:

Herbert W. Bilsky - Lawrenceville NJ
Patrick J. Callen - Yardley PA

Assignee:

RCA Corporation - New York NY

International Classification:

H02J 700

US Classification:

320 15

Abstract:

A highly efficient battery charging system in which the ampere-hour discharge of the battery is sensed for controlling the battery charging rate. The battery is charged at a relatively high charge rate during a first time period proportional to the extent of battery discharge and at a second lower rate thereafter.