Title :
A compact, highly efficient 50-W on-board power supply module for telecommunications systems
Author :
Yamashita, Nobuhiko ; Murakami, Naoki ; Yachi, Toshiaki
Author_Institution :
NTT Interdisciplinary Res. Labs., Tokyo, Japan
Abstract :
A compact, highly efficient 50-W power supply module has been developed. It has a power density of 30 W/inch3 and an efficiency of up to 90%. Total power loss is reduced by using MOSFET synchronous rectification and choosing the optimum switching frequency. Under forced air convection, this module does not need a heat sink. It is only 8.5 mm high
Keywords :
DC-DC power convertors; field effect transistor switches; power field effect transistors; power semiconductor switches; rectification; rectifying circuits; switching circuits; telecommunication power supplies; 50 W; 8.5 mm; 90 percent; DC-DC power converters; MOSFET synchronous rectification; efficiency; forced air convection; on-board power supply module; optimum switching frequency; power density; power loss reduction; telecommunications systems; MOSFET circuits; Power MOSFET; Power dissipation; Power supplies; Printed circuits; Switching converters; Switching frequency; Telegraphy; Telephony; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2482-X
DOI :
10.1109/APEC.1995.468965
