Title :
An improved boost PWM soft-single-switched converter with low voltage and current stresses
Author :
Da Silva, Evandro Soares ; Barbosa, Lucio Dos Reis ; Vieira, João Batista, Jr. ; De Freitas, Luiz Carlos ; Farias, Valdeir José
Author_Institution :
Faculdade de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil
fDate :
12/1/2001 12:00:00 AM
Abstract :
This paper presents an improved regenerative soft turn-on and turn-off snubber applied to a boost pulsewidth-modulated (PWM) converter. The boost soft-single-switched converter proposed, which has only a single active switch, is able to operate with soft switching in a PWM way without high voltage and current stresses. This is achieved by using an auxiliary inductor, which is magnetically coupled with the main inductor of the converter. In order to illustrate the operating principle of this new converter, a detailed study, including simulations as well as experimental results, is carried out. The validity of this new converter is guaranteed by the obtained results
Keywords :
DC-DC power convertors; PWM power convertors; inductors; snubbers; switching circuits; auxiliary inductor; boost PWM soft-single-switched converter; boost pulsewidth-modulated converter; boost soft-single-switched converter; low current stresses; low voltage stresses; magnetically coupled inductor; operating principle; regenerative soft turn-on snubber; regenerative turn-off snubber; single active switch; Inductors; Low voltage; Pulse width modulation; Pulse width modulation converters; Stress; Switches; Switching circuits; Switching converters; Switching frequency; Switching loss;
Journal_Title :
Industrial Electronics, IEEE Transactions on
