Title :
Interleaved converters based on hysteresis current control
Author :
Batchvarov, J.S. ; Duarte, J.L. ; Hendrix, M.A.M.
Author_Institution :
Electromech. & Power Electron. Group, Eindhoven Univ. of Technol., Netherlands
Abstract :
A method is proposed to improve the interleaved operation of half-bridge converters with variable switching frequency. It is based on cycle-by-cycle measurements of the switching period of one module, with the needed phase shift for the other bridges obtained by means of analog circuitry to allow fast dynamic response. Furthermore, in case of failure of one module, phase shift can be adjusted automatically in order to maintain minimum ripple and equal current sharing. Experimental tests validate the effectiveness of the approach
Keywords :
bridge circuits; dynamic response; electric current control; phase shifters; power convertors; switching circuits; ZVS; analog circuitry; cycle-by-cycle measurements; equal current sharing; fast dynamic response; hysteresis current control; interleaved half-bridge power converters; minimum ripple; module failure; phase shift; switching period; variable switching frequency; Bridge circuits; Current control; Hysteresis; Interleaved codes; Maintenance; Master-slave; Power electronics; Switching converters; Switching frequency; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.879895
