LED light modulator, LED light modulation panel, LED light modulation method and LED driving device
A technology of LED dimmer and adjustment device, which is applied to lighting devices, electroluminescent light sources, light sources, etc., can solve the problems of increased circuit cost, poor reliability, interference, etc., and achieves the goal of improving reliability and reducing circuit cost. Effect
Active Publication Date: 2016-10-26
HANGZHOU SILAN MICROELECTRONICS
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Problems solved by technology
However, using multiple dimmers results in increased circuit cost and interference among multiple dimmers, resulting in poor reliability
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[0044] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown.
[0045] In the following, many specific details of the present invention are described, such as device structures, materials, dimensions, processing techniques and techniques, for a clearer understanding of the present invention. However, the present invention may be practiced without these specific details, as will be understood by those skilled in the art.
[0046] The invention can be embodied in various forms, some examples of which are described below.
[0047] figure 2 A schematic block diagram of an LED dimming system according to an embodiment of the present invention is shown.
[0048] The LED dimming system includes a dimmer ...
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The present invention discloses a LED light modulator, a LED light modulation panel, a LED light modulation method and a LED driving device. The LED light modulator comprises: a light modulation data generator configured to generate pulse signals according to starting signals; a first regulation device configured to connect with the light modulation data generator, wherein the light modulation data generator generates pulse signals according to regulation signals of the first regulation signals to represent light modulation data; a modulator connected with the light modulation data generator and configured to superpose alternating input voltage with the pulse signals so as to generate electric power carrier signals; and a second regulation device connected with the modulator, wherein the second regulation device is taken as an additional regulation device for transmitting additional light modulation signals through the switching itself, and the electric power carrier signals and the additional light modulation signals are configured to control the bright and / or color temperature of the LED light. Because one light modulator includes two types of regulation devices, many control requirements can be satisfied, and therefore the cost of a circuit is reduced and the reliability is improved.
Description
technical field [0001] The present invention relates to light source control technology, and more specifically, relates to an LED dimmer for an LED lamp, an LED dimming panel, an LED dimming method and an LED driving device. Background technique [0002] When a light-emitting diode (light-emitting diode, LED) is used in the lighting field, an LED dimming device is used to adjust the brightness to meet the individual needs of users or adjust the light according to environmental requirements to reduce energy consumption. The brightness and color temperature of the LED can be adjusted by using the LED dimming device to meet the needs of users. [0003] The LED dimming device adopts, for example, a traditional thyristor dimmer. However, the thyristor dimmer has the problem of maintaining inconsistent current, and the products of different countries and brands are also different, which is prone to the problem of dimmer compatibility. In addition, phenomena such as flickering wi...
Claims
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IPC IPC(8): H05B33/08H05B44/00H05B45/10H05B45/20H05B45/33H05B45/385H05B47/185
CPCH05B45/00Y02B20/30
Inventor 叶美盼蔡拥军林继认林星宇
Owner HANGZHOU SILAN MICROELECTRONICS