Power supply for vibrating compressors

Details Power supply for vibrating compressors Power supply for vibrating compressors

1994-10-06

1997-08-19

Thorpe, Timothy S.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

62132, 318803, 318807, F04B 4906

Patent

active

056581327

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.

REFERENCES:
patent: 4672528 (1987-06-01), Park et al.
patent: 4736595 (1988-04-01), Kato
patent: 4748550 (1988-05-01), Okado
patent: 5072354 (1991-12-01), Katto et al.
patent: 5121315 (1992-06-01), Moriya
patent: 5209075 (1993-05-01), Kim
patent: 5280228 (1994-01-01), Kanouda et al.

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