Generator voltage regulator power circuit

Details Generator voltage regulator power circuit Generator voltage regulator power circuit

H - Electricity

02

P

322/11

H02P 9/30 (2006.01) H02P 9/10 (2006.01)

Patent

CA 2005091

ABSTRACT OF THE DISCLOSURE A qenerator voltage regulator circuit is provided with a switching circuit for alternatively connecting or disconnecting a generator exciter field winding to a DC power source. A discharge circuit is provided for conduct- ing current, produced by a collapsing magnetic field in the exciter winding following disconnection of the winding by the switching circuit, in a reverse direction through the DC power source. A driving circuit controls the switching circuit with a series of turn-on pulses. Each of the turn-on pulses is initiated in response to a transition in a clock signal and is terminated alternatively when the current in the exciter field winding reaches a predeter- mined magnitude or when a second transition occurs in the clock signal. This invention also encompasses a method of regulating exciter field current performed by this circuit.

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