Voltage conversion system for electronic timepiece

Details Voltage conversion system for electronic timepiece Voltage conversion system for electronic timepiece

1978-06-05

1981-03-31

Shoop, William M.

Electric power conversion systems

Current conversion

With voltage multiplication means

H02M 700

Patent

active

042597153

ABSTRACT:
A voltage conversion system for an electronic timepiece having a power source as a lithium battery, which system generates power at lower voltage level than that of the power source for operating at least one of a frequency standard, a frequency converter, a time counter circuit and a display system. The voltage conversion system comprises an oscillator circuit coupled to the power source to generate output signals, a plurality of capacitors, and a plurality of switching elements responsive to the output signals for alternately setting the capacitors in a parallel connected condition and a series connected condition, whereby an output voltage lower than that of the power source is generated at an output terminal of the system.

REFERENCES:
patent: 3708742 (1973-01-01), Gunn
patent: 3868560 (1975-02-01), Hoffman, Jr.
patent: 3937002 (1976-02-01), Van Haaften
patent: 3942047 (1976-03-01), Buchanan
patent: 3999368 (1976-12-01), Yoshida
patent: 4033110 (1977-07-01), Sagarino
patent: 4094137 (1978-06-01), Morokawa

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