Electronic clock with solar cell and rechangeable battery

Details Electronic clock with solar cell and rechangeable battery Electronic clock with solar cell and rechangeable battery

1987-01-05

1988-08-09

Roskoski, Bernard

Horology: time measuring systems or devices

Power supply details

Electrical

G04G 100, G04C 300

Patent

active

047633107

ABSTRACT:
A solar powered electronic clock has a display, time-keeping electronics, a battery, and a solar cell array. The battery is chargeable from the solar cell array and supplies only the time-keeping electronics while the display is powered only by the solar cell array. A diode connected between the solar cell array and battery permits the battery to be recharged, but prevents the display from drawing energy from the battery.

REFERENCES:
patent: 4015420 (1977-04-01), Walker
patent: 4296489 (1981-10-01), Mitsui

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