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Television indicator light circuit capable of reducing the standby power consumption

A technology of indicator light circuit and standby power consumption, which is applied in the field of TV to achieve the effect of reducing standby power consumption

Inactive Publication Date: 2009-10-28
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the user sets the TV set to the standby state, the power indicator light is often in a bright state, and the power consumption of the long-term standby is very large, which makes it very important how to reduce the power consumption of the TV set in the standby state.

Method used

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  • Television indicator light circuit capable of reducing the standby power consumption

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Embodiment Construction

[0008] The present invention is a television indicator circuit capable of reducing standby power consumption. When the television is in the standby state, the CPU controls the I / O port of the indicator light not to work, and the triode that controls the light-emitting diode is in the cut-off state, thereby achieving the state of being in the standby state. Next, the purpose of reducing the overall standby power consumption of the TV.

[0009] see figure 1 As shown, a TV indicator circuit capable of reducing standby power consumption in the present invention includes a CPU circuit, a control circuit connected to the CPU circuit, and a light-emitting diode circuit connected to the control circuit. The control circuit includes a first transistor Q46, a second transistor Q47 passing through a fourth resistor R4 and the first transistor Q46. Wherein, the first triode Q46 is connected to the I / O port of the CPU controlling the LED through the second resistor R2. The +12V power sup...

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Abstract

The invention discloses a television indicator light circuit capable of reducing the standby power consumption, comprising a CPU circuit, a control circuit connected with the CPU circuit and a light-emitting diode circuit connected with the control circuit, wherein the control circuit comprises a first triode Q46, a second triode Q47 connected with the first triode Q46 by a fourth resistance R4; and the light-emitting diode circuit comprises a double-color light-emitting diode and a sixth resistance R6 connected with the double-color light-emitting diode. The CPU controls the I / O port of the indicator out of work when the television is at standby state and the triode of the light-emitting diode is controlled at cut-off stage, therefore the television standby power consumption is reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of televisions, in particular to a television indicator circuit capable of reducing standby power consumption. 【Background technique】 [0002] Now television sets have become an indispensable household appliance in people's daily life, and more and more time is used by people. In many cases, when people do not use the TV set for the time being, they often set the TV set to a standby state. In this way, it is convenient to restart the TV set, and it is also convenient to reduce power dissipation when the TV set is not used. The method of using light-emitting diodes to indicate the state of the television (on or standby) is commonly used in today's television systems. At present, light-emitting diodes of different styles are generally used as the identification of the power indicator light. Especially the color television set that uses two-color light-emitting diode as indicator light is ubiquitous on the...

Claims

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Application Information

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IPC IPC(8): H05B37/00H05B37/02F21V23/00F21V33/00H04N5/63F21W111/00F21Y101/02F21Y115/10
Inventor 姜超
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD