Permanent-magnet brush-free DC generator with electronic voltage stabilizer

Permanent-magnet brush-free DC generator with electronic voltage stabilizer

  • CN 1,048,595 C
  • Filed: 07/10/1989
  • Issued: 01/19/2000
  • Est. Priority Date: 07/10/1989
  • Status: Active Grant
First Claim
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1. a permanent-magnet brush-free DC generator with electronic voltage stabilizer is by permanent magnet generator, by the synchronizing signal isolation control circuit, analog switching circuit, current detection circuit, reference voltage circuit, voltage detecting circuit, voltage regulator circuit, current regulating circuit, logic gating circuit, the control device that isolated drive circuit is formed and the output filter circuit of main circuit, it is characterized in that, its electronic voltage regulator main circuit of monophase machine is connected into single-phase rectification bridge output by 4 diodes, 2 power transistors are parallel to respectively on two diodes of single-phase rectification bridge minus side, its electronic voltage regulator main circuit of three phase electric machine is connected into three-phase commutation bridge output by 6 diodes, 3 power transistors are parallel to respectively on three diodes of three-phase commutation bridge minus side, make when generator speed equals maximum (top) speed by means of described control device, power transistor in parallel is in off state, electronic voltage regulator is fully operational in the rectification state of diode, make bridge rectifier be output as the direct current of rated voltage, when the rotating speed of generator is lower than maximum (top) speed, boost power transistor work in parallel is brought up to load voltage value with VD.

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