| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a minute inverter apparatus comprising a small-sized current detector which generates few detected current errors. SOLUTION: A first resistor group (R11 to R13) in which two or more resistors are connected in parallel is inserted and connected between a connecting point of a serial connecting body and the inverter apparatus. Moreover, a differential amplifier 24 and a current detecting means composed of a fourth resistor group inserted and connected between a negative input terminal of the differential amplifier and the same polarity terminal of the first resistor group, a third resistor connected between the negative input terminal and an output terminal of the differential amplifier, a second resistor group inserted and connected between the other same polarity terminal of the first resistor group and a positive input terminal of the differential amplifier, and a fifth resistor connected between a reference voltage and the positive input terminal of the reference voltage and the differential amplifier, are also provided.</p> |
