Title :
The analysis and design of full-bridge series-resonant type 48 V 200 A rectifier unit
Author_Institution :
Shindengen Electr. Manuf. Co. Ltd., Saitama
Abstract :
This paper presents new topologies of full-bridge series-resonant type 48 V 200 A rectifier units as battery chargers for telecommunication systems. Two advantageous points of this topology are shown: one improves the reverse recovery characteristic of the anti-parallel-diode of the main switching devices; and the other improves audible noise under light load conditions. A prototype unit is realized which is 3.0 cc/W in size and 2.7 g/W in weight. Conversion efficiency is 92%
Keywords :
AC-DC power convertors; battery chargers; bridge circuits; network analysis; network synthesis; network topology; power semiconductor diodes; power semiconductor switches; rectifiers; rectifying circuits; resonant power convertors; switching circuits; telecommunication power supplies; 200 A; 48 V; 92 percent; anti-parallel-diode; audible noise; battery chargers; full-bridge series-resonant power convertor; light load conditions; rectifier; reverse recovery characteristic; switching devices; telecommunication systems; topology; Capacitors; Circuit topology; Inductors; Manufacturing; Prototypes; Pulse width modulation; Pulse width modulation converters; Rectifiers; Resonance; Voltage;
Conference_Titel :
Telecommunications Energy Conference, INTELEC '93. 15th International
Conference_Location :
Paris
Print_ISBN :
0-7803-1842-0
DOI :
10.1109/INTLEC.1993.388563
