Title:
ROTARY PHASE CONTROLLER OF DC MOTOR
Document Type and Number:
Japanese Patent JPS602086
Kind Code:
A
Abstract:
PURPOSE:To obtain a rotary phase controller which has stable operation and good reliability by all digitizing the generations of a reference signal, a comparison signal, phase comparison and speed comparison. CONSTITUTION:A counter 7 receives as a set input a reference phase signal from a frequency divider 6, counts the output pulse of a reference oscillator 5, and a latch 8 latches the output of the counter 7 by the output timing of a monostable multivibrator 4. Then, the counter 9 inputs as an input signal the output of the latch 8 by the output timing of the multivibrator 4, and counts the output pulse of the oscillator 5. A latch 10 latches the output of the counter 9 by the timing of the output synchronized with the output of a rotary detector 2 from the multivibrator 3. A D/A converter 11 converted the output of the latch 10 to the analog value, and then supplies it through a motor drive amplifier 12 to a motor 1.
Inventors:
YOSHIDA YOSHIYUKI
Application Number:
JP10966983A
Publication Date:
January 08, 1985
Filing Date:
June 17, 1983
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
H02P7/06; H02P7/288; H02P7/292; (IPC1-7): H02P5/06; H02P5/168
Attorney, Agent or Firm:
Takuji Nishino
Next Patent: JPS602087