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Dimming device and its signal adjusting device

A signal adjustment and signal technology, applied in the field of lighting devices, can solve problems such as poor dimming, flickering light-emitting diodes, and inability to adjust the light.

Active Publication Date: 2016-01-20
HIMAX ANALOGIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] One object of the present invention is to provide a dimming device and its signal adjusting device, so as to improve the light-emitting diode flicker when the dimmer used in fluorescent lamps or bulb lamps is applied to the dimming of light-emitting diodes , Dimming poor or unable to dim the problem

Method used

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  • Dimming device and its signal adjusting device

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Embodiment Construction

[0034] In order to make the description of the present disclosure more detailed and complete, reference may be made to the accompanying drawings and various embodiments described below, and the same numbers in the drawings represent the same or similar elements. However, the provided embodiments are not intended to limit the scope of the present invention, and the description of the structure and operation is not intended to limit the order of its execution. Any device recombined by components to produce devices with equivalent functions is the subject of this invention. scope covered by the invention.

[0035] The accompanying drawings are for illustration purposes only and are not drawn to original scale. On the other hand, well-known elements and steps have not been described in the embodiments in order to avoid unnecessarily limiting the invention.

[0036] figure 1 It is a schematic circuit block diagram of a signal adjustment device 100 according to an embodiment of th...

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Abstract

A light adjustment device and a signal adjustment device thereof. The signal conditioning device includes a waveform detection circuit, an integrating circuit and a sampling circuit. The waveform detection circuit is used to detect the conduction angle of the sinusoidal wave signal, and convert the sinusoidal wave signal into a square wave signal according to the conduction angle of the sinusoidal wave. The integrating circuit is used to receive the square wave signal and integrate the square wave signal to generate an intermediate signal. The sampling circuit is used to receive the intermediate signal and sample the intermediate signal to generate a DC level signal to drive the light emitting element. A dimming device is also disclosed here.

Description

technical field [0001] The invention relates to a lighting device, and in particular to a signal adjustment device for a dimming device. Background technique [0002] Triode for Alternating Current (Triac) is a dimmer commonly used in fluorescent lamps or bulb lamps. However, the Triode for Alternating Current (Triac) switch is not suitable for dimming of general light-emitting diodes. [0003] The above-mentioned inapplicable situation is due to the fact that the characteristics of light-emitting diodes are very different from those of traditional light sources. If the dimmer used in fluorescent lamps or bulb lamps is applied to the dimming of light-emitting diodes, the light-emitting diodes will produce Problems with flickering, poor dimming, or no dimming. [0004] This shows that above-mentioned existing mode obviously still has inconvenience and defective, and needs to be further improved. In order to solve the above-mentioned problems, related fields have tried their...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 范航宇
Owner HIMAX ANALOGIC INC
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