Electric-power conversion apparatus
AssigneeMitsubishi Electric Corporation
InventorsYoshihiko KIMPARA, Takayuki KIFUKU, Tetsuya KOJIMA, Tatsuya MORI
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Abstract
There is provided an electric-power conversion apparatus including a chopper circuit; a current sense resistor that detects the output current of the chopper circuit; a differential detection circuit that outputs, as a differential detection signal (vo), the electric potential difference across the current sense resistor; and a calculation means that corrects the differential detection signal (vo) from the differential detection circuit by use of a control signal (D1) for the chopper circuit so as to calculate the output current (i0) of the chopper circuit.
Claims12
An electric-power conversion apparatus comprising:
- a chopper circuit;
- a current sense resistor that detects the output current of the chopper circuit;
- a differential detection circuit that outputs, as a differential detection signal, the electric potential difference across the current sense resistor;
- and
- a calculation means that corrects the differential detection signal from the differential detection circuit by use of a control signal for the chopper circuit so as to calculate the output current of the chopper circuit.
Dependencies are inferred from the claim text.