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用TL494构成的恒流恒压双闭环系统

Constant Current/Constant Voltage and Double Closed-loop Control System Made of TL 494

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【作者】 文亚凤刘向军薛礼妮陈晓梅

【Author】 WEN Ya-feng, LJU Xiang-jun, XUE Li-ni, CHEN Xiao-met (Department of Information Engineering, North China Electric Power University, Beijing 102206, China)

【机构】 华北电力大学信息工程系华北电力大学信息工程系 北京 102206北京 102206北京 102206

【摘要】 开发了一种用TL494构成的恒流恒压双闭环控制系统。系统通过两个闭环共用同一个脉宽调制实时处理方法,实现了恒流调节和恒压调节功能。该控制系统结构简单,在高速换向脉冲电镀电源的性能测试及运行中表明,其性能稳定,控制效果好,具有实用多功能性,可随时进行周期性给定值的调节。

【Abstract】 A constant current/constant voltage and double closed-loop control system, which is composed of TL494, is developed in this paper. The system realize constant current regulation and constant voltage regulation by the method that double closed-loop share one PWM. It is testified by the experiments that this control system not only has the simple and stable characteristics and the good performance. but also the practical and multifunctional characteristics. As the results, the periodical regulation of the given value can be done at any moment.

  • 【文献出处】 华北电力大学学报 ,Journal of North China Electric Power University , 编辑部邮箱 ,2002年01期
  • 【分类号】TN86
  • 【被引频次】12
  • 【下载频次】935
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