H - Electricity – 02 – M
Patent
H - Electricity
02
M
58/0.5
H02M 3/00 (2006.01) G04G 19/02 (2006.01)
Patent
CA 1164226
W-115 D-C VOLTAGE CONVERTER Inventor: Hans-Rudolf Sutter, a citizen of Switzerland and residing at Meinisbergweg 5, Pieterlen, Switzerland ABSTRACT A d-c converter for inclusion in a miniature elec- tronic device, such as an electronic wristwatch having a d-c supply source, the converter functioning to increase or de- crease the voltage of this source. The converter includes a transformer whose primary is connected to the source through a periodically-actuated chopper to produce an alternating voltage, the secondary of the transformer being connected to a rectifier circuit having at least one controllable switch element whose on-off state is governed in synchronism with the chopper whereby the switch element acts to rectify the secondary voltage. -1-
362653
Bulova Watch Company Inc.
Smart & Biggar
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