| 摘要 |
PURPOSE:To reduce power consumption by receiving a signal from an inverter control means and delivering signals to an electromagnetic contactor and a surge current limiting circuit while furthermore receiving a signal from the inverter control means and delivering a signal to an inverter circuit. CONSTITUTION:An inverter control means 10 directs a signal S10 through a relay driving means 12 to a surge current limiting relay 15 thus turning contacts 15a, 15b OFF. The relay driving means 12 then directs a signal S12, to an electromagnetic contactor 2 and turns the electromagnetic contactor 2 ON thus completing DC power supply to an inverter circuit 7. The inverter control means 10 then directs a signal S13, to an inverter base drive circuit 13 and generates an inverter waveform while furthermore directs a signal S14. from the inverter base drive circuit 13 to the inverter circuit 7. Consequently, the inverter circuit 7 inverts DC power into three-phase AC power which is then fed to a compressor 8 thus starting operation of the compressor 8. |
