Compensator Design for Digital Controlled Switched-Mode Power Supplies
In switching power supply system, compensator in feedback loop plays an indispensable role in system stability and performance improvement. While digital controlled power converter, due to the quantization effect, brings new challenge to compensator design. This paper presents a complete design process for a digital compensator, which begins from designing an analog compensator, then going through a conversion from s-domain to z-domain to obtain discrete time equivalent transfer function. As a key point, constrain brought by limit cycle oscillation, error introduced by approximate conversion and comparison of different structures of compensator are all under consideration. All conclusions are illustrated by simulation results based on simulink model.
Ling Lin Jianping Qiu Lenian He
Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China
国际会议
2011 IEEE 9th International Conference on ASIC(2011年第九届IEEE国际专用集成电路大会)
厦门
英文
1055-1058
2011-10-25（万方平台首次上网日期，不代表论文的发表时间）