Document Type and Number:
Japanese Patent JPS54144232
Kind Code:
U
Abstract:
A motor is energized by a source through first and second transfer switches. Each transfer switch is operated by a switching transistor. The switching transistor for the first transfer switch is driven by a drive signal while the switching transistor for the second transfer switch is driven by the output of a delay circuit responsive to an excessively large current flowing through the motor. A self-holding switch is provided to connect the motor to the source through the second transfer switch.
Application Number:
JP4251178U
Publication Date:
October 06, 1979
Filing Date:
March 31, 1978
Export Citation:
International Classes:
H01H47/00; B60S1/08; H01H9/54; (IPC1-7): H01H9/54; H01H47/00