Title :
Analysis and design of buck/boost zero-voltage-switching resonant DC/DC convertor
Author :
Kazimierczuk, M.K.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
fDate :
8/1/1989 12:00:00 AM
Abstract :
A steady-state analysis is presented for a buck/boost zero-voltage-switching resonant DC/DC power convertor. The current and voltage waveforms are derived using differential equations. Conditions for lossless operation are determined. Design equations are given for the DC transfer function, on-switch duty cycle, DC input resistance, maximum switching frequency, peak currents and voltages, power-conversion capability and component values. Whereas this analysis is directed toward the design of a high-efficiency high-power density buck/boost convertor, it also provides insight into the behaviour and performance of modern resonant DC/DC convertors.
Keywords :
nonlinear network analysis; nonlinear network synthesis; power convertors; switching circuits; transfer functions; DC input resistance; DC transfer function; buck/boost convertor; component values; current waveforms; design equations; differential equations; high-efficiency; high-power density; lossless operation; maximum switching frequency; on-switch duty cycle; peak currents; power-conversion capability; resonant DC/DC convertor; steady-state analysis; voltage waveforms; zero-voltage-switching;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings G
