| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter device capable of suppressing the number of insulating circuits connected between a high-voltage circuit and a low-voltage circuit. <P>SOLUTION: An inverter device includes: an inverter 100 that converts power supplied from a power supply and supplies the converted power to a load; a capacitor 101 that is connected between power-supply bus lines of the inverter 100; a discharge resistor 102 that is connected between the power-supply bus lines and discharges charges stored in the capacitor 101; first voltage detection means that detects a voltage between the power-supply bus lines; abnormality determination means that is connected to the first voltage detection means with an insulating state, receives a first detection voltage that is a voltage value detected by the first voltage detection means, and determines abnormality of the discharge resistor 102 when the received first detection voltage is lower than a predetermined voltage threshold value; and a disconnection detection circuit 103 that sets the first detection voltage when the discharge resistor 102 is disconnected to a voltage lower than the predetermined voltage threshold value. <P>COPYRIGHT: (C)2013,JPO&INPIT |
