Title :
Small sized power supply module with SMT control circuit HIC and synchronous rectifier
Author :
Miyazaki, Takahiro ; Kuwabara, Kohji
Author_Institution :
Fujitsu Labs. Ltd., Kawasaki, Japan
Abstract :
This paper introduces the development of a low-cost small sized power supply module with a high-density SMT control circuit and a low-loss synchronous rectifier. The control circuit consists of a high-density SMT hybrid IC. As well as stabilizing the output voltage, the control circuit suppresses the rush current, monitors the input voltage, shuts down the power supply in the event of a power failure, remotely starts and stops the power supply, and transmits power failure alarm signals for the power supply module. The synchronous rectifier, using a low on-resistance FET, cuts down the power loss in the rectification circuitry, which accounts for a most of the total loss in a power supply, to make a low-loss power supply module
Keywords :
AC-DC power convertors; field effect transistor switches; hybrid integrated circuits; power field effect transistors; power integrated circuits; power semiconductor switches; power supplies to apparatus; power supply circuits; rectifying circuits; surface mount technology; switching circuits; SMT control circuit; hybrid power IC; on-resistance FET; power loss; rectification circuitry; small sized power supply module; synchronous rectifier; Costs; FETs; Filters; Power supplies; Printed circuits; Rectifiers; Schottky diodes; Size control; Surface-mount technology; Voltage control;
Conference_Titel :
Telecommunications Energy Conference, 1995. INTELEC '95., 17th International
Conference_Location :
The Hague
Print_ISBN :
0-7803-2750-0
DOI :
10.1109/INTLEC.1995.498947
