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High output alternator and regulator

  • US 5,506,492 A
  • Filed: 11/24/1993
  • Issued: 04/09/1996
  • Est. Priority Date: 11/24/1993
  • Status: Expired due to Fees
First Claim
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1. In a electrical generating system including a storage battery for providing standby power at a predetermined voltage magnitude between a main power terminal and system ground, a mechanically driven generator having stator windings across which a three-phase AC voltage is produced at an amplitude determined by the amount of current fed through a field winding, and a rectifier for rectifying the three-phase AC voltage to provide a DC battery voltage between a main power terminal and a system ground for charging the battery and supplying other DC voltage loads, the improvement comprising:

  • a voltage multiplier circuit for multiplying and rectifying the AC voltage to provide a multiplied DC voltage across a positive and a negative pole; and

    a voltage regulator connected to the voltage multiplier circuit and to the field winding, and being responsive to the DC battery voltage appearing between the main power terminal and system ground, wherein the voltage regulator outputs a voltage at a full or fraction of the magnitude of the multiplied DC voltage to the field winding to control the field current fed through the field winding of the generator to cause the three-phase AC voltage developed across the stator windings of the generator to have an amplitude correct to establish and maintain the DC battery voltage at the predetermined magnitude.

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