SWINGING DRIVE CONTROL APPARATUS AND METHOD

Disclosed is a swinging drive control apparatus, including a controller and a motor, where the controller detects a counter-electromotive force of the motor and drives the motor according to the detection result. Also disclosed is a corresponding method, including: measuring a counter-electromotive...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHU, Xuan, ZOU, Xueming
Format:	Patent
Sprache:	eng
Schlagworte:	AMUSEMENTS BEDS CHAIRS CHUTES COFFEE MILLS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DOMESTIC ARTICLES OR APPLIANCES ELECTRICITY FURNITURE FURNITURE SPECIALLY ADAPTED FOR CHILDREN GAMES GENERATION HUMAN NECESSITIES MERRY-GO-ROUNDS ROCKING-HORSES SIMILAR DEVICES FOR PUBLIC AMUSEMENT SOFAS SPICE MILLS SPORTS SUCTION CLEANERS IN GENERAL SWINGS SWITCHBACKS
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Beschreibung
Zusammenfassung:	Disclosed is a swinging drive control apparatus, including a controller and a motor, where the controller detects a counter-electromotive force of the motor and drives the motor according to the detection result. Also disclosed is a corresponding method, including: measuring a counter-electromotive force of a motor in a previous cycle; and comparing a maximum counter-electromotive force value with a preset value, and calculating a PWM pulse duty factor in a next cycle. By directly detecting the counter-electromotive force of the motor without using a sensor, the present invention implements swinging frequency and phase tracking as well as swinging amplitude control, and simplifies a control system.