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Voltage regulator of AC generator having circuit for detecting voltage induced in field coil

  • US 6,707,276 B2
  • Filed: 06/21/2001
  • Issued: 03/16/2004
  • Est. Priority Date: 06/26/2000
  • Status: Active Grant
First Claim
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1. A voltage regulator of a vehicle AC generator including a rotor having a field coil and a plurality of magnetic poles and a stator having a stator core and an armature coil, said voltage regulator comprising:

  • a switching circuit, connected to said field coil, for supplying field current to said field coil in a controlled manner;

    a field voltage detecting circuit for detecting a residual field voltage induced in said field coil when said field coil is not supplied with field current; and

    a switch control circuit, connected to said field voltage detecting circuit, for controlling said switching circuit according to said field voltage.

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