Electrical supply system for an internal combustion engine

Details Electrical supply system for an internal combustion engine Electrical supply system for an internal combustion engine

H - Electricity

02

J

320/11

H02J 7/14 (2006.01)

Patent

CA 1131308

ABSTRACT OF THE DISCLOSURE An internal combustion engine includes a flywheel- mounted permanent magnet alternator connected to a converter having gated switches operating in an on-off mode to provide a regulated voltage to a battery and electrical load power. A voltage sensing unit which is responsive to battery volt- age is connected to a gate current transistor for continu- ously supplying gate current and turning the switches fully on and off for producing a regulated output. The sensing unit includes a minimum pulse width circuit to insure a minimum turn-on signal when power is demanded. Second gates switches function as overvoltage protectors of the crowbar shunt type. An overvoltage detector is connected to the converter output and to a second gate current transistor for supplying gate current and turning on the second gated switch means in response to a major voltage deviation. Supression circuits reduce RFI and required withstand voltages of the switch means and the first gate current transistor.

318021

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