Title :
Modeling, analysis, and application of buck converters in discontinuous-input-voltage mode operation
Author :
Lee, Y.S. ; Wang, S.J. ; Hui, S.Y.R.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech. Univ., Kowloon, Hong Kong
fDate :
3/1/1997 12:00:00 AM
Abstract :
By adding a suitable LC filter to the input of a buck power converter, it is possible to force the converter into discontinuous-input-voltage mode operation. A buck power converter in this mode of operation has useful properties such as power factor correction and soft turn-off switching. The operation, modeling, low-frequency behavior, and application of the power converter are studied. Experimental results verifying the theoretical predictions are also presented
Keywords :
power convertors; power factor correction; power filters; switching circuits; LC filter; application; buck power converter; discontinuous-input-voltage mode operation; low-frequency behavior; modelling; power factor correction; soft turn-off switching; Buck converters; Capacitance; Equivalent circuits; Filters; Inductance; Power engineering and energy; Power factor correction; Reactive power; Switching converters; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
