Title :
A comparative analysis of 4KW PSBs for welding machine
Author :
Cancelliere, P.P. ; Colli, V. Delli ; Stefano, R.D. ; Tomassi, G.
Author_Institution :
Ind. Electron. Lab., Univ.of Cassino, Italy
Abstract :
The paper deals about the study conducted to evaluate the reliability of H bridge topology, for a DC/DC converter with phase-shift modulation strategy, with three different power devices. The first one is based on 500 V 0.087? 46 A HEXFET™ power MOSFETs, the second one adopts MDmesh™ power MOSFETs with external Schottky and ultrafast diodes in order to shunt the reverse current and the third one is based on CoolMOS power MOSFETs integrating the diodes in the same package. Each of them is reviewed, prototyped and investigated. Experimental results show the technological limits of each solution and suggest their right application range.
Keywords :
DC-DC power convertors; Schottky diodes; bridge circuits; phase shifters; power MOSFET; power semiconductor devices; welding equipment; 4 kW; 46 A; 500 V; CoolMOS power MOSFET integrated diodes; DC-DC converter; H bridge topology reliability; HEXFET power MOSFET; MDmesh power MOSFET; PSB analysis; phase-shift modulation strategy; power device; reverse current shunting; schottky ultrafast diodes; welding machine; Bridge circuits; Circuit topology; MOSFETs; Packaging; Phase modulation; Power system reliability; Prototypes; Schottky diodes; Switching converters; Welding;
Conference_Titel :
Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on
Print_ISBN :
0-7803-7885-7
DOI :
10.1109/PEDS.2003.1283201
