Power supply for vibrating compressors
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United States of America Patent
Stats
-
Aug 19, 1997
Grant Date -
N/A
app pub date -
Oct 6, 1994
filing date -
Oct 8, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power supply for vibrating compressors having an inverter for converting direct current (d-c) into alternating current (a-c). The power supply includes a d-c power source section for applying d-c voltage to the inverter, a current detecting apparatures for detecting a current flowing in the vibrating compressor, a control section having a frequency following circuit for generating a frequency following the resonance frequency of the vibrating compressor on the basis of a current detected by the current detecting apparatures, and an inverter control circuit for controlling the inverter with the frequency generated by the frequency following circuit. The vibrating compressor is driven by an a-c voltage of the frequency agreeing with the resonance frequency of the vibrating compressor.
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