Power controlling apparatus with power converting circuit
First Claim
1. A power controlling apparatus comprising a power converting circuit which is connected between a DC circuit and an AC circuit, the power converting circuit comprising a switching element enabling bidirectional power supply and a diode connected in parallel to the switching element, the power converting circuit executing an inverter operation which, by controlling the switching element, converts DC power from the DC circuit to AC power that is outputted to the AC circuit and a rectification operation which, by the diode, converts AC power from the AC circuit to DC power that is outputted to the DC circuit,wherein the switching element connected in parallel to the diode is caused to supply power in a same direction as the diode in a period of time of power supply made by the diode in the rectification operation.
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Accused Products
Abstract
The invention provides an apparatus for bi-directional power conversion between a DC circuit and an AC circuit, which inexpensively and simply suppresses generation losses of elements and reduces heat generation, wherein a voltage obtained by dividing the U-phase voltage Vu is compared with a voltage obtained by dividing the voltage vpn of a DC circuit by a comparator CP1, and the MOSFET UFETh is turned on at the output timing thereof, and a voltage obtained by dividing the V-phase voltage Vv is compared with a voltage obtained by dividing the voltage Vpn of a DC circuit by a comparator CP2, and the MOSFET UFETh is turned off at the output timing thereof.
18 Citations
10 Claims
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1. A power controlling apparatus comprising a power converting circuit which is connected between a DC circuit and an AC circuit, the power converting circuit comprising a switching element enabling bidirectional power supply and a diode connected in parallel to the switching element, the power converting circuit executing an inverter operation which, by controlling the switching element, converts DC power from the DC circuit to AC power that is outputted to the AC circuit and a rectification operation which, by the diode, converts AC power from the AC circuit to DC power that is outputted to the DC circuit,
wherein the switching element connected in parallel to the diode is caused to supply power in a same direction as the diode in a period of time of power supply made by the diode in the rectification operation.
Specification