| 摘要 |
PURPOSE:To perform operation control with high reliability while suppressing power consumption and heat generation. CONSTITUTION:An operation controller A' for an air conditioner is constituted of a pattern 7 formed on a printed wiring board to guide an operating main current to a compressor motor 4, a DC amplifier 6 for amplifying voltage induced between two points A, B on the pattern 7 and an inverter control circuit 5 for controlling power feed to the compressor motor 4 based on the voltage amplified by the DC amplifier 6. By the above-mentioned constitution, a transistor part is effectively protected from an overcurrent to also decrease power consumption and a heating value. As a result, operation control of suppressing the power consumption further with high reliability can be performed. |
