單片機(jī)產(chǎn)生SPWM波在UPS中的應(yīng)用

單片機(jī)產(chǎn)生SPWM波在UPS中的應(yīng)用:文中介紹了基于PIC16F73單片機(jī)產(chǎn)生SPWM控制波形，驅(qū)動全橋逆變電路組成的在線式正弦波UPS電源系統(tǒng)，采用電壓閉環(huán)反饋，提高系統(tǒng)控制精度，給出軟件流程圖及部分實驗波形。
關(guān)鍵詞：SPWM；單片機(jī)；UPS；電源系統(tǒng)

Application of SPW M W ave Produced by M icrocontroller in UPS
Yang jianping，Uu Chun，Ren guanglin
(Information Engineering Institute of Hubei University of Technology，Wuhan Hubei，430068 China)
Abstract：This paper introduces the method of producing SPWM controlling wave using PIC 16F73 mierocon·troller，to drive the online sine wave power system composed of a ful-bridge inverted circuit．We adopt a voltage feedback of closed loop to improve the precision of system control，The flow chart of the software and parts of experimental waves are also provided．