CONSTANT-SPEED CONTROLLER

PURPOSE:To prevent the operation timing from being displaced or the position controlling accuracy from decreasing by controlling the exciting time of a motor so that the counterelectromotive force of the motor at the time of deenergizing the motor becomes constant. CONSTITUTION:A microprocessor unit...

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Bibliographic Details
Main Authors KOBAYASHI MIKIO, NISHIDA TORU, TERUI HIROSHI, ARAKI KUNIHIKO
Format Patent
LanguageEnglish
Published 06.06.1988
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
ELECTROGRAPHY
GENERATION
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PURPOSE:To prevent the operation timing from being displaced or the position controlling accuracy from decreasing by controlling the exciting time of a motor so that the counterelectromotive force of the motor at the time of deenergizing the motor becomes constant. CONSTITUTION:A microprocessor unit (MPU) 11 controls a motor 14 and a combination solenoid 21 through a motor driver 12 and a combination solenoid driver 20 on the basis of the signal inputs from an analog/digital converter 16, a timing switch 18, and a phase sensor 19. The driver 12 drives the motor 14 while turning ON, OFF a power source 13 by a command from the MPU 11. The MPU 11 samples the terminal voltage Vm when the motor is OFF through the converter 16, and controls the duty of a command signal to the driver 12 so that the value of the counterelectromove force becomes constant.
Bibliography:Application Number: JP19860280511