Idle current cutoff circuit

Details Idle current cutoff circuit Idle current cutoff circuit

1995-12-26

1997-11-25

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 40, 320 39, 320 54, H02J 700

Patent

active

056916221

ABSTRACT:
A cutoff switch (40) separates the reference line (20) of a control circuit (18) from the B- line (24). The cutoff switch is in an electrically open state until the function of the control circuit is required, thus eliminating current flow through the control circuit when the function of the control circuit is not required. To enable the control circuit, a threshold switch (42) is provided to cause the cutoff switch to change states when the battery voltage reaches a predetermined level. To provide an override, a diode is connected between an auxiliary line (26), used a thermistor (28), for example.

REFERENCES:
patent: 5304915 (1994-04-01), Sanpei et al.
patent: 5332928 (1994-07-01), Johnson
patent: 5477130 (1995-12-01), Hashimoto et al.
patent: 5493197 (1996-02-01), Eguchi et al.
patent: 5504411 (1996-04-01), McCaleb et al.
patent: 5530336 (1996-06-01), Eguchi et al.
patent: 5547775 (1996-08-01), Eguchi et al.
patent: 5568039 (1996-10-01), Fernandez
patent: 5569550 (1996-10-01), Garrett et al.
patent: 5581170 (1996-12-01), Mammano et al.
patent: 5602460 (1997-02-01), Fernandez et al.
patent: 5604415 (1997-02-01), Vashi et al.

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