Research on phase-shifted full-bridge converter applied in the anode-supply of hall electric propulsion

With the rapid development of hall electric propulsion, higher requirement for improving power and efficiency of power processing units was created. We introduce a kind of phase-shifted full-bridge soft switch technology, which is applied in anode-supply of hall electric propulsion. In the paper, the advantages of phase-shift full bridge converter in high voltage and high power anode-supply area are illustrated, as well as the working principle of this converter. This paper focuses on the problem of duty cycle loss and the condition of leading and lagging leg to achieve ZVS in the high power situation. Also the condition of the achievement for soft switch is verified by simulation analysis and the experiment results. Finally the demands of parameter selection for phase-shifted full-bridge converter in high power situation are presented.