Button control device reset circuit and method

A technology for controlling equipment and resetting circuits, applied in electrical components, electronic switches, pulse technology, etc., can solve problems such as user complaints, stuck keys, equipment failures, etc., to prevent abnormal reset of equipment, improve satisfaction, and reduce device layout. Effect

Active Publication Date: 2019-03-22
XIAMEN YAXON NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in the actual situation, due to the fit tolerance of the structural parts, the button will be stuck after being pressed, which will cause the device to be in the reset state all the time, causing the device to fail and cannot enter the normal working state, resulting in complaints from users

Method used

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  • Button control device reset circuit and method
  • Button control device reset circuit and method

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Embodiment Construction

[0021] see figure 1 As shown, the embodiment of the present invention provides a button S1 control device reset circuit, which is connected between the first DC power supply VCC_5V and the button reset electronic device U1, and includes a button S1 connected at one end to the first DC power supply VCC_5V , an operational amplifier U2A, an inverting input power generating circuit and a non-inverting input power generating circuit; the non-inverting input power generating circuit is connected between the other end of the button S1 and the non-inverting input of the operational amplifier U2A; The power generating circuit at the inverting input terminal is connected between the other end of the button S1 and the inverting input terminal of the operational amplifier U2A; the power generating circuit at the non-inverting input terminal is used for when the button S1 is not pressed When it is down, the output voltage is higher than the output voltage of the power generating circuit a...

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PUM

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Abstract

The invention discloses a button control device reset circuit and method. The method comprises the following steps that: When an electronic device is working normally, the button is not pressed, the voltage of the non-inverting input terminal of an operational amplifier is higher than the voltage of the inverting input terminal, and the operational amplifier outputs a high level; when the electronic device fails, the voltage of the non-inverting input terminal of the operational amplifier is lower than the voltage of the inverting input terminal after the button is pressed for the first specified time, the operational amplifier outputs a low level, and the electronic device is reset; and the button is pressed for a delay of the second specified time or the button is released after the electronic device is reset, the voltage of the non-inverting input terminal of the operational amplifier is higher than the voltage of the inverting input terminal, the operational amplifier outputs the high level, and the button reset electronic device does not repeat resetting. Even if the button is pressed, the electronic device can be restored to a normal working state and reset only once while the button of the button control device reset circuit is used as the reset button. Therefore, the quality of the product can be improved and the satisfaction of a customer can be improved.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a reset circuit and method for key control equipment. Background technique [0002] In an electronic device, when the device fails, it is often necessary to press and hold a button to reset the device. The common method is to reset the device after the button is pressed for a period of time, and then release the button, and the device returns to normal. However, in the actual situation, due to the fit tolerance of the structural parts, the button will be stuck after being pressed, which will cause the device to be in the reset state all the time, causing the device to malfunction and fail to enter the normal working state, resulting in complaints from users. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and propose a reset circuit and method for key control equipment. While the key is used ...

Claims

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Application Information

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IPC IPC(8): H03K17/22H03K17/96
CPCH03K17/22H03K17/96
Inventor 汤益明陈汉平兰伟华
Owner XIAMEN YAXON NETWORKS CO LTD
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