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The Research and Realization of Low Stand-by Power Technology in Colour Television

Author: ZuoJinZhou
Tutor: YouBaiQiang；WuLiangZuo
School: Xiamen University
Course: Instrument Electronics
Keywords: Low standby power consumption Color TV Switching Power Supply
CLC: TN949.12
Type: Master's thesis
Year: 2008
Downloads: 34
Quote: 1
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Abstract


This world , especially the developed countries , attaches great importance to environmental protection and energy-saving , low standby power consumption of electronic equipment is expected to save considerable electrical energy . China is the world largest producer of color television sets , but most of the products can not achieve the requirements of low standby power consumption , standby power consumption 3W . This article is based on the design and implementation of export CRT high-definition color television design and development project based on the practice , research and discussion within the range of cost reduce the standby power consumption of CRT color TV . The innovation of this paper is to achieve the target by the correct selection of the power programs and the MCU power supply circuit to optimize the design , production guidance is of great practical significance . Color TV in standby mode , the power supply circuit section and the MCU circuit part will have a standby power consumption. This selection of Sanken STR - W6556 chip program as a switching power supply when the power supply is operating in standby in the UVLO burst mode , reducing the switching frequency, thereby reducing the power loss . MCU power supply circuit optimization design, the standby MCU circuit consumes only a very low power consumption . At the same time , the original standby power consumption degaussing circuit was redesigned . After several tests , has been tested and standby power consumption can be reduced to the 0.8W ( the AC 11OV input ) , must meet the U.S. FCC regulations television receiver standby power consumption to less than 1W standard , which can be in the U.S. market . This paper is organized as follows: The first chapter discusses the urgent requirements and realities of this world for low standby power consumption of electronic equipment . The second chapter discusses the causes of the standby power consumption and reduce the standby power consumption of the ideas and methods . The third chapter compares several power programs and technology. Described in detail in Chapter STR - W6556 program used in this paper , the practical problems in the development , optimization design of the MCU power supply circuit and other circuits optimized . Chapter CRT color TV standby low-power techniques to make the outlook .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > TV > TV : Press the institutional sub- > Color TV
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