POWER SUPPLY FOR VIBRATION-TYPE COMPRESSOR

摘要

PURPOSE: To simplify the circuit constitution of a power supply for a vibration- type compressor and to reduce the cost of the power supply. CONSTITUTION: A power supply for a vibration-type compressor is constituted in such a way that a DC voltage is converted into an AC voltage and that the AC voltage is applied to the vibration-type compressor 1. The power supply is constituted so as to be provided with one MOFFET 2 which drives the vibration-type compressor 1, with a timer IC 6 which generates pulses used to switch the MOS-FET 2, with a timer-forced-operation circuit 8 which captures a timing to restore an inverted voltage generated by the vibration-type compressor 1 in the OFF-period of the MOSFET 2 so as to be close to 0V and which forcibly inverts the output of the timer IC 6 at the timing and with a driver 4 which drives the MOSFET 2 on the basis of the output of the timer IC 6.