电工技术学报2019，Vol.34Issue(2)：255-263,9.DOI:10.19595/j.cnki.1000-6753.tces.171646
一种双电压合成信号脉宽调制的低功耗高速电磁铁驱动电路
A High-Speed Solenoid Drive Circuit with Low Power Consumption Based on Pulse Width Modulation by Dual Voltage Synthesized
摘要
Abstract
In order to improve the dynamic and steady-state performance of the electrohydraulic control system, a high-speed solenoid drive circuit with low power consumption was presented, which was based on pulse width modulation (PWM) by using dual voltage synthesized method.Unlike common dual power switching circuit, it synthesizes a dual voltage signal by combing a monostable trigger circuit, a reverse input summation circuit and a reverse proportional operation circuit, and then generates a pulse width modulation signal with dual duty ratio compared to a high frequency triangle wave signal, and finally outputs power by the amplifier.As a result, a PWM signal with 100％ duty ratio in the initial stage achieves the armature in high speed by rapid current rise of solenoid coil, and the low power consumption is maintained with a 10％ duty ratio after the end of the movement.It can avoid the complexity and real-time performance of dual power switching circuit design.Theoretical model of the high-speed solenoid and circuit is hence established, and the simulations regarding the dynamic and steady-state performance were verified by experimental results of the prototype.The results show that the performance of the drive circuit is obviously improved compared to typical constant voltage or constant duty cycle control method.The opening time, closing time, and the steady-state power consumption of solenoid are 10 ms, 22 ms and 0.3W respectively within a stroke of 2.5mm, which better meet the drive requirements of high-speed solenoid with low power consumption.关键词
双电压/高速电磁铁/低功耗/脉宽调制Key words
Dual voltage/high-speed solenoid/low power consumption/pulse-width modulation分类
信息技术与安全科学引用本文复制引用
李勇,黄庆林,谷璐璐,赵杨,任燕..一种双电压合成信号脉宽调制的低功耗高速电磁铁驱动电路[J].电工技术学报,2019,34(2):255-263,9.基金项目
国家自然科学基金(51505338) （51505338）
浙江省自然科学基金(LQ16E050004) （LQ16E050004）
温州市公益性工业科技(G20160017)资助项目 （G20160017）
