Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1980-06-02
1982-03-16
Shoop, William M.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
363 49, 363 97, 318132, 323235, H02M 7537
Patent
active
043204481
ABSTRACT:
A vibrating compressor wherein an alternating voltage is applied from a d-c power source to a drive coil vibrating in a magnetic field via a d-c/a-c converter circuit is disclosed. An alternating voltage of a square wave form is applied to the drive coil of the vibrating compressor in such a manner as to avoid the timing at which a counter electromotive force generated in the drive coil intersects with zero level.
REFERENCES:
patent: 3441831 (1969-04-01), Goto et al.
patent: 3564394 (1971-02-01), Opal et al.
patent: 3875483 (1975-04-01), Farr
patent: 3916271 (1975-10-01), Watanabe et al.
patent: 3925688 (1975-12-01), Kalfus
patent: 4027211 (1977-05-01), Omura et al.
Izumi Tosio
Katayama Naohiro
Okuda Yukio
Sawafuji Electric Co. Ltd.
Shoop William M.
Wong Peter S.
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