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Multi-channel power supply switching circuit and lighting device

A power supply switching, multi-channel technology, applied in circuit devices, DC network circuit devices, DC circuits with more than three wires, etc., can solve the problem that the power switching circuit cannot switch multiple different power supply voltages, etc., to achieve the effect of expanding the scope of application

Active Publication Date: 2022-05-27
APUTURE IMAGING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-channel power supply switching circuit and lighting device, which can effectively solve the problem that the existing power switching circuit cannot switch between multiple different power supply voltages

Method used

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  • Multi-channel power supply switching circuit and lighting device
  • Multi-channel power supply switching circuit and lighting device

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Embodiment Construction

[0032] The purpose of the present invention is to provide a multi-channel power supply switching circuit and a lighting device, which can effectively solve the problem that the existing power supply switching circuit cannot switch between multiple different power supply voltages.

[0033] 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 examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0034] see figure 1, a multi-channel power supply switching circuit provided by the present invention includes m power input modules 10, each power input module 10 includes a power input terminal 110, a power input channel 120, a voltage detection unit 130 and a switching control unit 140. The power input...

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PUM

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Abstract

The invention discloses a multi-channel power supply switching circuit and a lighting device. The multi-channel power supply switching circuit comprises m power supply input modules, and each power supply input module comprises a power supply input end, a power supply input channel, a voltage detection unit and a switching control unit; the nth voltage detection unit controls the connection or disconnection of the nth power supply input channel according to the power supply voltage of the nth power supply input end; the nth switching control unit controls the nth power supply input channel to be disconnected when the power supply voltage input by any one power supply input end before the nth switching control unit is greater than the nth preset switching value or the channel voltage of any one power supply input channel after the nth switching control unit is greater than the nth preset switching value; and when the nth power supply input channel is switched on, a second control signal is output to the nth power supply input channel and the nth power supply input channel, and the nth power supply input channel and the nth power supply input channel are controlled to be switched off, so that switching of multiple paths of different input power supply voltages is realized.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a multi-channel power supply switching circuit and a lighting device. Background technique [0002] The current power switching circuit cannot be used in the occasions where multiple different input power voltages are switched, so the scope of application is limited. [0003] Therefore, the existing technology still needs to be improved and improved. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a multi-channel power supply switching circuit and a lighting device, which can effectively solve the problem that the existing power supply switching circuit cannot switch between multiple different power supply voltages. [0005] In order to achieve the above object, the present invention has adopted the following technical solutions: [0006] An embodiment of the present application provides a multi-channel power supply switching c...

Claims

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Application Information

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IPC IPC(8): H02J1/08H05B47/10
CPCH02J1/082H02J1/084H05B47/10Y04S20/20
Inventor 凡凯
Owner APUTURE IMAGING IND
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