Title :
Soft-start circuitry for DC motor
Author :
Lü, Zongwang ; Sun, Fuyan
Author_Institution :
Coll. of Inf. Sci. & Eng., Henan Univ. of Technol., Zhengzhou, China
Abstract :
This paper presents a soft-start circuit using the pulse width-modulation (PWM) method. The motor is controlled by the dc chopper associated with a low-cost PWM chip TL494. The design criteria are stated. The motor HC385MG is tested in experiment. The results illustrate that the circuit effectively reduces the inrush current at start-up moment. The circuit also provides the speed adjustment and can be further implemented with the speed regulation and the over-current protection.
Keywords :
DC motors; machine control; DC motor; HC385MG; low-cost PWM chip TL494; over-current protection; pulse width-modulation method; soft-start circuitry; speed regulation; Choppers; DC motors; Educational institutions; Power electronics; Pulse width modulation; Surges; Transient analysis; PWM; deadtime control; soft-start;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057599
