Title:
FAN MOTOR WITH SURGE CURRENT BLOCKING CIRCUIT
Document Type and Number:
Japanese Patent JP2003111460
Kind Code:
A
Abstract:
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.
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.
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Inventors:
OTSUKA MOTOI
SEKI KATSUYUKI
SEKI KATSUYUKI
Application Number:
JP2001299108A
Publication Date:
April 11, 2003
Filing Date:
September 28, 2001
Export Citation:
Assignee:
JAPAN SERVO
International Classes:
H02P1/46; H02M1/16; (IPC1-7): H02P1/46; H02M1/16