Problem to be solved: to provide a power converter capable of correcting the zero point of the current sensor more accurately than in the prior art.The power converter disclosed herein includes a booster circuit, a power conversion circuit, a current sensor and a controller.The booster circuit has a first switching element for boosting the voltage of the power supply.The power conversion circuit has a second switching element for converting the output of the booster circuit into driving power of the running motor.The current sensor measures the current flowing between the power supply and the running motor.The controller controls the first switching element and the second switching element.The controller turns off both the first and second switching elements and corrects the zero point of the current sensor based on the measured value of the current sensor.The power converter turns off the switching element for boosting and power conversion to produce a state where the current flowing through the power converter is surely zero, and then acquires the measured value for zero point correction.Diagram
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