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Voltage regulator for charging generator

  • US 4,563,631 A
  • Filed: 02/10/1984
  • Issued: 01/07/1986
  • Est. Priority Date: 02/10/1983
  • Status: Expired due to Fees
First Claim
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1. A voltage regulator for a charging generator comprising:

  • an a.c. generator having an armature coil and a field coil;

    a rectifier for converting the a.c. output of said a.c. generator to a d.c.;

    a battery connected to the output of said rectifier and receiving, and charged by, the power supplied from said a.c. generator;

    comparison means for comparing the battery voltage with a reference voltage;

    a power transistor controlled by the output of said comparison means and controlling a current flowing through said field coil;

    a voltage divider connected to a constant voltage source and constructed in such a manner that the divided voltage thereof becomes said reference voltage;

    a plurality of switching means connected in parallel with a part of said voltage divider and forming a bypass circuit to bypass predetermined portions of said voltage divider when they are conductive; and

    conduction control means for controlling the conduction of said switching means in accordance with an ambient temperature by controlling said switching means to form predetermined bypass paths to bypass predetermined portions of said voltage divider in accordance with said ambient temperature to provide a predetermined change in said reference voltage between a maximum value which occurs when all of said switching means are non-conductive and a minimum value which occurs when all of said switching means are conductive.

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