Title：Buck type switching power supply converter controlled by digital sliding mode variable structure

Country：China

Patent No.：201210500397.1

Legal Status：Authorized

Inventor：Guannan Xu, Chen Jia, Ziqiang Wang, Xuqiang Zheng, Chun Zhang, Hanjun Jiang, Hong Chen, Zhihua Wang

Assignee：Graduate School at Shenzhen, Tsinghua University

Address：Tsinghua Campus, Xili University Town, Nanshan District, Shenzhen City 518055, Guangdong Province

Filing Date：2012-11-30

Issue Date：2014-12-10

The invention relates to a Buck type switching power supply converter controlled by a digital sliding mode variable structure. The Buck type switching power supply converter controlled by the digital sliding mode variable structure comprises a Buck type conversion module which is provided with a control end, a voltage Vout output end, a feedback voltage Vfed output end and a digital sliding mode variable structure controller, wherein the first input end REF is connected with a reference voltage, and the second input end FED and output end OUT are respectively connected with the feedback voltage Vfed output end and control end of the conversion module. The controller converts the feedback voltages provided by the reference voltage and the conversion module into a reference clock signal and a feedback clock signal. An operational state signal of the conversion module is analyzed and tested according to the two voltage signals and two clock signals, so as to stabilize the output voltage of the Buck conversion module by the control method of the digital sliding mode variable structure. The Buck type switching power supply converter provided by the invention is strong in monitoring and management capabilities and high in conversion efficiency, and has the advantages of quick load transient response and good robustness.

Patent Certificate： PDF/Jpg