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Power circuit and lamps

A kind of power supply circuit, circuit technology

Active Publication Date: 2022-05-17
宁波公牛光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the isolation element is a safety component, it needs to maintain a certain safety distance from other circuits during installation, so the area of ​​the circuit board used to set each circuit in the dimmable lamp will be larger, which is not conducive to the development of LED lamps. Miniaturized design

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  • Power circuit and lamps
  • Power circuit and lamps
  • Power circuit and lamps

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Embodiment Construction

[0053] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0054] Combining with the records of the background technology, it can be seen that in the related art, an additional isolation element needs to be provided between the dimming circuit and the power terminal connected to the dimming circuit, so that the printed circuit board (print circuit board) used for setting each circuit in the dimmable lamp , PCB) has a large area, which is not conducive to the miniaturization and compact design of lamps. The embodiment of the present application provides a power supply circuit, which can realize the miniaturization and compact desig...

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Abstract

The application provides a power supply circuit and a lamp, which belong to the field of electronic technology. The dimming circuit in the power supply circuit is connected to the input end of the secondary rectification circuit, and can determine the on-off state of the switch by directly detecting the signal at the input end of the secondary rectification circuit. Since the signal at the input end of the secondary rectification circuit is a weak electric signal compared to the power signal, there is no need to set an additional isolation element between the input end of the dimming circuit and the secondary rectification circuit to ensure the working safety of the dimming circuit , the design of the power circuit is conducive to the realization of miniaturization of lamps.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to a power supply circuit and a lamp. Background technique [0002] Dimmable lamps refer to lamps with adjustable luminous parameters (including at least one of brightness and color temperature). Usually, the user can quickly switch the on-off state of the switch connected to the dimmable lamp, so that the dimmable lamp can adjust its lighting parameters. [0003] In the related art, a dimmable lamp includes: a light emitting module and an isolated power supply circuit. Wherein, the isolated power supply circuit is respectively connected with the power supply terminal and the light-emitting module, and the power supply terminal is connected with the power supply through a switch. After the switch is closed, the power terminal can provide the isolated power circuit with a power signal from the power supply, and the isolated power circuit can then drive the light emitt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/10H05B45/20H05B45/30
CPCH05B45/10H05B45/20H05B45/30Y02B20/30
Inventor 蔡显彬
Owner 宁波公牛光电科技有限公司