Frank M Russo

Address:

1882 SW Hilola Ln, Port Saint Lucie, FL 34953

Phone:

(772)8716308

VIN:

WBSEK93507CS32577

Make:

BMW

Model:

M6

Year:

2007

Address:

750 SE 22 Ave, Pompano Beach, FL 33062

VIN:

WBANE73577CM49026

Make:

BMW

Model:

5 SERIES

Year:

2007

US Patent:

59696257, Oct 19, 1999

Filed:

Apr 16, 1997

Appl. No.:

8/843692

Inventors:

Frank J. Russo - North Palm Beach FL

International Classification:

G08B 2100

US Classification:

340636

Abstract:

The method and the apparatus for detecting a deteriorating condition in a bank of standby batteries includes injecting an audio frequency current into one of the battery buses or cables, detecting an audio frequency current signal, matched to the injected audio frequency current signal, that is carried by the battery bus and detecting a voltage drop, at the audio frequency, across the bank of standby batteries. In one embodiment, current transformers are utilized in connection with an oscillator (to inject the AF current signal) and detection circuits (comparators and operational amplifiers) are utilized to generate a representative current signal and a representative voltage signal. The device detects when the standby batteries are operating in a normal, stable condition, that is, when the bank is neither being recharged nor is discharging DC power to the load. During normal, stable operating conditions, a differential relationship is established between the representative voltage and representative current signals.