Power supply for volatile memory devices and portable electrical

Details Power supply for volatile memory devices and portable electrical Power supply for volatile memory devices and portable electrical

1993-10-04

1996-10-29

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 56, 307 66, H01M 1046

Patent

active

055699979

ABSTRACT:
A nonswitched power circuit energizes volatile memories of electronic devices in an automobile. When the main vehicle battery is present and providing power, the volatile memories are energized by the main battery through a diode. The main battery also maintains a rechargeable battery in a charged state. When the main battery voltage drops due to a discharged or disconnected main battery, the rechargeable battery maintains power to the volatile memories. The rechargeable battery may be included as part of a flashlight for providing a portable, rechargeable light source.

REFERENCES:
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Electronique Applications, No. 52, Mar. 1987, Paris, p. 49.
Dashlite Flashlight, Sold by LHI USA, Santa Fe Springs, California, Oct. 3, 1993.

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