CURRENT DETECTION DEVICE AND CURRENT DETECTION METHOD

摘要

Provided is a current detection device with which it is possible to detect the occurrence of aliasing. This current detection device (10) is provided with a first detection unit (11), a second detection unit (12), and an aliasing detection unit (13). The first detection unit (11) uses an excitation current of a prescribed frequency to detect a measured current. The second detection unit (12) outputs the AC component of the measured current as an AC detection signal. The aliasing detection unit (13) samples the AC detection signal, at a sampling clock having a frequency obtained by multiplying the prescribed frequency by an even number.