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Voltage regulator having enhanced regulation over vehicle charging system

  • US 6,801,021 B2
  • Filed: 12/09/2002
  • Issued: 10/05/2004
  • Est. Priority Date: 12/09/2002
  • Status: Expired due to Term
First Claim
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1. A voltage regulator that regulates the output voltage of a vehicle charging system having an alternator or generator and field winding and connected to a vehicle battery and vehicle devices for supplying a voltage and recharging the battery and powering vehicle devices comprising:

  • a microcontroller operative for monitoring output voltages representative of monitored load changes of the vehicle; and

    a power output circuit controlled by the microcontroller and that connects to a field winding of the vehicle wherein the microcontroller is operative for changing the field duty cycle of the generator or alternator by turning ON and OFF the power output circuit in a predetermined manner as established by the microcontroller based on monitored load changes within the vehicle.

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