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A power conversion system includes an engine coupled to drive an alternator, a rectifier circuit, and an ignition controller. The alternator includes a stator and a rotor that cooperate when driven to provide a current supplied to the rectifier circuit. The rectifier circuit provides output power ha

A power conversion system includes an engine coupled to drive an alternator, a rectifier circuit, and an ignition controller. The alternator includes a stator and a rotor that cooperate when driven to provide a current supplied to the rectifier circuit. The rectifier circuit provides output power having a voltage. The ignition controller supplies energy to the spark plug of the engine. If the voltage exceeds a predetermined limit, the ignition controller supplies less energy to the spark plug to decrease engine drive. The stator may include several windings (or a tapped winding) and the system further includes an engine throttle controller and a winding control circuit. The winding control circuit selectively couples one or more windings of the plurality (or one or more turns of a tapped winding) to the rectifier circuit. The winding control circuit cooperates with a throttle controller to facilitate provision of a predetermined output power with a relatively low engine RPM for noise abatement.

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1. A power conversion system comprising:a. an engine comprising an output shaft, the shaft in operation having a shaft speed in revolutions per minute, the shaft speed responsive to an ignition signal; b. a generator coupled to the shaft to provide a power signal having a voltage responsive to the s

1. A power conversion system comprising:a. an engine comprising an output shaft, the shaft in operation having a shaft speed in revolutions per minute, the shaft speed responsive to an ignition signal; b. a generator coupled to the shaft to provide a power signal having a voltage responsive to the shaft speed; and c. a circuit that receives the power signal and provides the ignition signal in response to the voltage of the power signal thereby maintaining the voltage of the power signal below a limit.