2012•Microcomputer InformationRequires access

Study on low ripple power supply filter for LCD in Space

Guangze Jin

Abstract

System in space requires LCD,which power supply ripple is low,about 0.1% of output voltage (peak-peak),but general switching power supply can only reach to 1% of the output voltage (peak-peak).Traditional satellite power system can not be used in incorporate design of satellite platform and payload.for their size.This paper presents a new approach to produce low ripple power supply.A combination of a normal switching power supply.Its ripple can be reduced to 0.1%,to meet the ripple requirements of LCD power supply.

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Key concepts: Ripple, Payload (computing), Computer science, Power (physics), Switched-mode power supply, Voltage, Ripple marks, Liquid-crystal display