Chemistry: electrical current producing apparatus – product – and – With control means responsive to battery condition sensing...
Patent
1994-07-25
1996-08-27
Bell, Bruce F.
Chemistry: electrical current producing apparatus, product, and
With control means responsive to battery condition sensing...
429 90, 429 93, 429 9, 324765, 324769, 324771, 307 107, 340636, H01M 200
Patent
active
055499848
ABSTRACT:
A dual battery or back-up battery system includes a control and indicator circuit for driving the battery switch. The battery switch is coupled between the positive terminals of the primary battery and auxiliary battery. The control and indicator circuit includes an indicator such as an LED, an indicator switch such as a single pole, single throw switch, and a driver circuit. The driver circuit includes a voltage tripler for appropriately driving a MOSFET battery switch. The indicator requires only a single signal conductor between the driver circuit and the indicator switch or indicator light. The indicator switch may also be utilized to provide a signal to a computer or other control circuit. The indicator switch and indicator are advantageously located within the interior of an automobile so that the operator may easily monitor and control the battery switch.
REFERENCES:
patent: 5002840 (1991-03-01), Klebenow et al.
patent: 5153449 (1992-10-01), Crook et al.
patent: 5162164 (1992-11-01), Dougherty et al.
patent: 5316868 (1994-05-01), Dougherty et al.
Bell Bruce F.
Globe-Union Inc.
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