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TV set low-power consumption standby controlling method based on single chip microcomputer

A single-chip microcomputer control and control method technology, which is applied in the field of televisions, can solve the problems of high power consumption and inability to meet the working requirements of the main chip, and achieve low standby power consumption and good energy-saving effects

Active Publication Date: 2006-12-27
HISENSE +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to provide convenience for TV users and at the same time reduce the standby power consumption of the TV as much as possible, the original situation of relying on the main chip to realize the standby control function is not ideal
The unsatisfactory reason is that the power consumption of the original standby power supply itself is relatively large, and switching to a low power consumption power supply cannot meet the working requirements of the main chip.
The solution can only be to use a low-power standby power supply while adding a suitable control circuit to achieve low-power standby for the TV.

Method used

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  • TV set low-power consumption standby controlling method based on single chip microcomputer
  • TV set low-power consumption standby controlling method based on single chip microcomputer

Examples

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Embodiment 1

[0022] Example 1. A kind of low-power consumption standby control method of television based on single-chip microcomputer, such as Figure 1 ~ Figure 2 shown. The method controls the relay of the standby power supply with a single-chip microcomputer, comprising the following steps:

[0023] (1) After the microcontroller is powered on and reset, it detects the input level status of a pin (I / O port) of the main chip through its GP0 port, and reads the E level status through the program at the same time. 2 PROM, which detects whether the TV was in the "on" or "standby" state when the power was last turned off;

[0024] (2) If it is in the "standby" state, output a high level through the GP1 port, drive the red indicator light to light up, and perform the following sub-steps:

[0025] ①Monitor the output signal from the remote control receiver through the COUT port. After receiving the "start-up" signal, output a high level through the GP4 port, and at the same time pull down t...

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Abstract

The TV low-power standby control method based on SCM comprises: detecting the state of last close; for standby, monitoring output signal of remote controller by the COUT port, once receiving starting signal, sending high level from GP4 port, lighting blue indicator, and storing current state; monitoring output signal from key; for starting state, lighting blue indicator; detecting output signal of controller, once receiving standby signal, reading two times the input level of GP0 port every 10ms; if high and low level, driving the red indicator, storing current state; delaying 3s; during whole process, once detecting falling signal on GP0 port, outputting low level on GP4 port, storing current state and delaying 3s. This invention can reduce power to 0.3W.

Description

technical field [0001] The invention belongs to the technical field of televisions, and more specifically relates to the improvement of a low-power standby control method for televisions based on a single-chip microcomputer. Background technique [0002] In order to provide convenience for TV users and at the same time reduce the standby power consumption of the TV as much as possible, the original situation of relying on the main chip to realize the standby control function is not ideal. The unsatisfactory reason is that the power consumption of the original standby power supply itself is relatively too large, and switching to a power supply with low power consumption cannot meet the working requirements of the main chip. The solution can only be to increase a suitable control circuit while switching to a low-power standby power supply, so as to realize the low-power standby of the TV set. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/63
Inventor 王立平施志峰徐爱臣孙有新
Owner HISENSE