Indicator light control circuit and electric equipment

A technology for controlling circuits and indicator lights, applied in the direction of electrical components, etc., can solve the problems of single control signal source, poor compatibility of indicator light control circuits, etc., and achieve the effect of improving compatibility

Pending Publication Date: 2020-12-25
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of the shortcomings of the above-mentioned prior art, the object of the present invention is an indicator light control circuit and electrica

Method used

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  • Indicator light control circuit and electric equipment
  • Indicator light control circuit and electric equipment
  • Indicator light control circuit and electric equipment

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Example Embodiment

[0023]The purpose of the present invention is to provide an indicator light control circuit and electrical equipment, which can effectively solve the problems of poor compatibility of the existing indicator light control circuit and single control signal source.

[0024]In order to make the objectives, technical solutions and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0025]Seefigure 1 The indicator light control circuit 10 provided by the present invention includes a signal source selection module 100, a control module 200, and a drive module 300. The signal source selection module 100, the control module 200 and the drive module 300 are connected in turn, and the drive module 300 is also connected...

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Abstract

The invention discloses an indicator light control circuit and electric equipment. The indicator light control circuit comprises a signal source selection module, a control module and a driving modulewhich are connected in sequence, wherein the signal source selection module is used for outputting a control signal to the control module according to a first signal source or a second signal source,the control module is used for outputting a positive driving signal or a negative driving signal to the driving module according to the control signal, and the driving module is used for driving thepositive indicator light to be turned on according to the positive driving signal or driving the negative indicator light to be turned on according to the negative driving signal, so that the drivingcontrol of the indicator lights with different polarities can be realized, two signal sources can be supported, and the compatibility of the indicator light control circuit is improved.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to an indicator light control circuit and electrical equipment. Background technique [0002] The circuit for controlling the indicator light in the main board of the existing electrical equipment can either only output a high-level signal with a positive polarity to drive the indicator light, or can only output a low-level signal with a negative polarity to drive the indicator light to light up. If the drive polarity of the light does not match the main board, it will cause the indicator light to fail to light up, and the board design needs to be redesigned to match, which will increase the design cost; moreover, when designing the main board, only the main chip control can be used to output the GPIO signal High and low levels, so as to control the on and off of the indicator light, and some products have no power supply to the main chip when they are in standby, and c...

Claims

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Application Information

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IPC IPC(8): H05B45/30
CPCH05B45/30Y02B20/40
Inventor 翁玉清田阳骆书洪
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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