| 摘要 |
PURPOSE:To keep the ratio of an effective voltage to a rotation frequency of the motor of a compressor near constant. CONSTITUTION:The outdoor machine of an air conditioner comprises an inverter circuit 4 to control the frequency of the motor 3 of a compressor 2 and a control division 5 which variably controls the effective value of an inverter waveform by varying delay time when the inverter circuit 4 switches on-off of switching elements T1, T2, T3, T4, T5, T6. |
