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|1. (WO2017150726) CURRENT MEASUREMENT DEVICE AND INVERTER|
|Applicants:||KYUSHU INSTITUTE OF TECHNOLOGY
|Title:||CURRENT MEASUREMENT DEVICE AND INVERTER|
Provided are a current measurement device and an inverter, capable of measuring output current, even when the output current from the inverter is a large current at low frequency. An inverter 10 has a third arm 13 connected in series from a first arm 11, which is connected in parallel between a ground line LL and a power supply line LH from a battery BT, which is a power supply. The third arm 13 has upper arms 111 to 131 and lower arms 112 to 132 connected in series from the first arm 11. A current measurement device 20 detects output current from the inverter 10. The current measurement device 20 is provided with: a pair of air core coils 21, 22 surrounding both wirings of a first wiring L1 between the power supply line LH and upper arms 111 to 131, and a second wiring L2 between the ground line LL and lower arms 112 to 132; and an integrating circuit 231 for integrating the output from the air core coils 21, 22.