Title :
A family of PWM soft-single-switched converters with low voltage and current stresses
Author :
Barbosa, L.R. ; Vieira, J.B., Jr. ; de Freitas, L.C. ; Farias, V.J.
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Federal de Uberlandia, Brazil
Abstract :
The use of switching regulator circuits at high power levels and high frequencies requires careful examination and control of the power dissipation during switching. In this paper a family of PWM soft-single-switched DC-DC converters is shown which, having only a single active switch, is able to operate with soft switching in a pulse width modulation way without high voltage and current stresses. In addition such converters can work at high switching frequencies for a wide range of load. In order to illustrate the operating principle of these new converters a detailed study, including simulations and experimental test is carried out. The validity of these new converters is guaranteed by the obtained results
Keywords :
DC-DC power convertors; PWM power convertors; switching circuits; DC-DC converters; PWM soft-single-switched converters; active switch; boost converter; circuit analysis; high switching frequencies; low current stress; low voltage stress; operating principle; power dissipation control; soft switching; switching regulator circuits; DC-DC power converters; Frequency; Low voltage; Power dissipation; Pulse width modulation; Pulse width modulation converters; Regulators; Switches; Switching circuits; Switching converters;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616901
