Power supply for vibrating compressors.

摘要

A power supply for vibrating compressors having an inverter for converting direct current (d-c) into alternating current (a-c) comprising a d-c power source section for applying d-c voltage to the inverter, current detecting means for detecting a current flowing in the vibrating compressor, and 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 means, and an inverter control circuit for controlling the inverter with the frequency generated by the frequency following circuit, so that the vibrating compressor is driven by an a-c voltage of the frequency agreeing with the resonance frequency of the vibrating compressor.