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Dimming control circuit, dimming control device and lamp

A dimming control circuit and dimming control technology, applied in the field of lighting, can solve problems such as low reliability and complex dimming circuit, and achieve the effects of improving reliability, simplifying circuit structure, and reducing manufacturing costs

Inactive Publication Date: 2013-06-26
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a dimming control circuit, device and lamp with simple circuit and high reliability in view of the shortcomings of complex dimming circuits and low reliability in the prior art

Method used

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  • Dimming control circuit, dimming control device and lamp
  • Dimming control circuit, dimming control device and lamp

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Embodiments of the present invention will be described below with reference to the accompanying drawings. refer to figure 1 , is a circuit diagram of the dimming control circuit in an embodiment of the present invention. The dimming control circuit has a dimming signal output positive terminal and a dimming signal output negative terminal, including a first switch tube Q1, a second switch tube Q2, a voltage regulator tube D1, a first voltage divider re...

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Abstract

The invention discloses a dimming control circuit which comprises a dimming signal output positive electrode end and a dimming signal output negative electrode end which are used for outputting dimming signals and serving as an input end of a working power supply of the dimming control circuit. The dimming control circuit does not include a power switching circuit, so that the complexity of the dimming circuit is reduced, and the reliability of the dimming circuit is improved. The invention also discloses a dimming control device which comprises the dimming control circuit and a driving power supply module which is connected with an alternating current power supply. The dimming control circuit is powered with the working power supply through the dimming input end, so that the production cost of the dimming control device can be reduced, and the reliability of the dimming control device can be improved. The invention also discloses a lamp which comprises the dimming control device and a lamp load. The illuminance of the lamp can be adjusted reliably.

Description

technical field [0001] The invention relates to the lighting field, in particular to a dimming control circuit, a device and a lamp. Background technique [0002] Dimmable lamps, as a new category of products, have met different levels of lighting needs in people's lives. Generally, the illuminance of a dimmable lamp is adjusted through a dimming control circuit, and the working power of the dimming control circuit is supplied by an external AC power supply. Since the external AC power needs to be rectified and stepped down by the power conversion unit before being connected to the dimming control circuit, and then input to the dimming control circuit, the dimming control circuit is prompted to generate a dimming signal and output it to the driving power module. The driving power supply module is also driven by an external AC power supply, and a power conversion unit is also provided in it, which makes the dimming control circuit more complicated and reduces the reliability...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 周明杰谢万源
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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