POWER-SUPPLY CONTROL APPARATUS AND HEAT PUMP DEVICE USING THE POWER-SUPPLY CONTROL APPARATUS
A power-supply control apparatus of the present invention is configured such that a control circuit, to which detection information from an input voltage detection part, input current detection part, rectified current detection part, and output voltage detection part is inputted, outputs a driving c...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A power-supply control apparatus of the present invention is configured such that a control circuit, to which detection information from an input voltage detection part, input current detection part, rectified current detection part, and output voltage detection part is inputted, outputs a driving command signal which is for performing ON/OFF operation of a switching element so that a rectified current from a rectifying circuit becomes a waveform in which a sine-wave current waveform having the same phase as an input voltage is rectified; and a breaking circuit interrupts the driving command signal to be inputted to the rectifying circuit from the control circuit when an absolute value of an input current detected by a current transformer of the input current detection part exceeds a previously determined abnormal input current threshold. |
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