Power supply down-conversion, regulation and low battery detecti

Details Power supply down-conversion, regulation and low battery detecti Power supply down-conversion, regulation and low battery detecti

1989-06-01

1990-08-28

Wong, Peter S.

Electricity: power supply or regulation systems

Input level responsive

340663, 340636, G05F 500

Patent

active

049528645

ABSTRACT:
A low battery detect circuit shuts down high current circuitry in the system in the event that battery voltage drops to a level such that the regulated output voltage is endangered. The trigger voltage is dependent upon capacitor ratios and a reference voltage. The output of the detection circuitry is a digital signal which can be used to disable high current circuitry in an implantable medical device and, thus, allow the battery voltage to recover. Alternatively, the output of the detection circuitry can be used as a battery status indicator flag.

REFERENCES:
patent: 2944198 (1960-07-01), Louys
patent: 3036263 (1962-05-01), Hallas
patent: 4205369 (1980-05-01), Asano
patent: 4404624 (1983-09-01), Yamazaki
patent: 4451743 (1984-05-01), Suzuki et al.
patent: 4460953 (1984-07-01), Fukushima et al.

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