| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly efficient DC power supply device reducing loss of a diode by utilizing the characteristic of low on-resistance of MOSFET to the most, along with a refrigeration cycle device equipped with the same, and an air conditioner and a refrigerator mounted with the same. <P>SOLUTION: A control means 11 causes an MOSFET 3 to be in a gate-on state at such timing as an input current Is starts flowing in forward direction, and, after the input current Is has started to flow in the forward direction, causes it to be in a gate-off state at such timing as the input current Is becomes zero. <P>COPYRIGHT: (C)2011,JPO&INPIT |
