FAN MOTOR WITH SURGE CURRENT BLOCKING CIRCUIT

摘要

PROBLEM TO BE SOLVED: To obtain a fan motor provided with a switching noise blocking capacitor being driven through a rectified power supply circuit in which the surge current can be reduced at the start of the fan motor. SOLUTION: An MOS-FET is connected between a power supply circuit and a drive circuit and the gate of the MOS-FET is controlled by the output voltage from a time constant circuit comprising a resistor and a capacitor thus reducing the surge current and resetting normal operation.