21.Guohua Zhou, Yanyan Jin, Jianping Xu, Ping Yang, and Fei Zhang. "Switching converter double-edge constant on-time modulation voltage control device". Utility Model Patent, Patent No: ZL201320006745.X,2013-07-03public
Pre One:20.Guohua Zhou, Yanyan Jin, Ping Yang, Jianping Xu, and Fei Zhang. "Switching converter double-edge constant off-time modulation voltage control device". Utility Model Patent, Patent No: ZL201320006804.3,2013-08-14public
Next One:22.Jianping Xu, Fei Zhang, Tiesheng Yan, Ping Yang, and Guohua Zhou. "A Low Voltage Stress Flyback Converter with Wide Load Range". Utility Model Patent, Patent No: ZL201220590405.1,2013-07-03public