Title :
A new soft-switching forward DC-DC converter operating in discontinuous conduction mode
Author :
Spiazzi, Giorgio ; Buso, Simone
Author_Institution :
Dipt. di Elettronica e Inf., Padova Univ., Italy
Abstract :
The paper presents a simple soft-switching forward DC-DC converter suitable for low power applications. A lossless passive turn-off snubber is employed to provide zero voltage turn off of the switch as well as transformer reset. Moreover, the choice to operate the converter in discontinuous conduction mode (DCM), while providing zero current turn on of the switch, also allows to simplify the topology by eliminating the inductive output filter. A detailed converter analysis, aimed to highlight advantages and drawbacks of the presented topology, is reported, together with a suitable design procedure. Experimental results are also included to verify the theoretical expectations.
Keywords :
DC-DC power convertors; power transformers; snubbers; switching circuits; converter analysis; design procedure; discontinuous conduction mode; inductive output filter elimination; lossless passive turn-off snubber; low-power applications; soft-switching forward DC-DC converter; transformer reset; zero current turn; Capacitors; DC-DC power converters; Diodes; Filters; Magnetic switching; Snubbers; Switches; Switching converters; Topology; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1022363