| 摘要 |
PURPOSE:To eliminate wasteful power consumption by energizing a compressor for only set time by using an AC control element for a starting coil switch of the compressor to start the compressor. CONSTITUTION:The input of an inverter 25 is ''L'' level in the state that a compressor 5 is stopped, and an operation signal is not input to the gate terminal of an AC control element 10, and a timer 24 is reset. When the compressor 5 is then set to the operating state, AC control elements 13, 11 are conducted, a current is flowed to a M coil 4 and a S coil 3 to operate the compressor 5, and a timer 24 starts counting. AC control elements 13, 11 are interrupted by the output of the prescribed period of the timer 24, a current to the coil 3 is interrupted, and the compressor 5 is operated only by the current of the coil 4. |
