| 摘要 |
PROBLEM TO BE SOLVED: To provide a switch which can connect various kinds of loads by avoiding rapid change in load voltage when turning on and off power supply from commercial power source to a load. SOLUTION: When a load opening and closing part 105 is opened to stop the power supply from the commercial power source AC to the load L, a second power source part 101 supplies power to a first power source part 107 generating the operation power source of a control part 103 controlling the load opening and closing part 105. A third power source part 104 supplies power to the first power source part 107 when the load opening and closing part 105 is closed to supply power from the commercial power source AC to the load L. The output voltage of the second power source part 101 is set to be equal to or lower than the output voltage of the third power source part 104. The switch therefore can connect various kinds of loads by avoiding rapid change in load voltage when turning on and off power supply from the commercial power source to the load. COPYRIGHT: (C)2006,JPO&NCIPI
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