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Buck converter controlled by using variable switching frequency technique
Author(s)
Date Issued
December 1, 2008
Type
Conference Paper
Abstract
In this paper, a linearly tunable voltage controlled oscillator with negatively proportional characteristic, termed VCO, is described. Using the VCO and analog PI controller in feedback path of a buck converter operating in continuous condition mode, a control technique with variable switching frequency is presented. No filtering capacitor is required in the proposed technique that provides the advantage of a simple and compact structure. Experimental results show that the output voltage ripple can be reduced. The output voltage regulation can be also kept in constant without stability problems. © 2008 IEEE.
Citation
2008 IEEE International Conference on Electron Devices and Solid State Circuits Edssc, 2008