INDUCTIVE LOAD CONTROL CIRCUIT, AND WATER HEATER EQUIPPED WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To improve the performance of preventing lightening of an inductive load control circuit. SOLUTION: This inductive load control circuit comprises a rectifier 4 for full-wave rectifying commercial power; a plurality of inductive loads 5a to 5c operated by the full-wave rectified power source on the secondary side of the rectifier 4; a plurality of switching means 3a to 3c to open/close the respective plurality of inductive loads 5a to 5c; and a varistor 8 to connect to both ends of the one of switching means of the plurality of switching means 3a to 3c. Thus, even when the switching means 3a to 3c are turned off, since a lightning surge can be made to flow to the varistor 8, the rectifier 4 breakdown can be prevented. COPYRIGHT: (C)2005,JPO&NCIPI