NOISE FILTER CIRCUIT FOR POWER SUPPLY LINE

摘要

PROBLEM TO BE SOLVED: To realize the downsizing of a noise filter coil and to enhance the noise immunity and reliability of a power supply circuit. SOLUTION: Power is supplied to the noise filter coil 1 from a 100 VAC power supply 2. Further, a pump or motor 3 being a low frequency load with a small current capacity or the like is connected to a primary side of the noise filter coil 1, and an igniter 5 being a high frequency load with a large current capacity or the like is connected to a secondary side. Thus, the downsizing of the noise filter coil is realized and the noise immunity and the reliability of the power supply circuit are enhanced. COPYRIGHT: (C)2004,JPO