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A kind of led lamp and its dimming method

A technology of LED lights and LED light sources, applied in the field of LED lighting, can solve problems such as high-frequency flickering of light, impaired vision, eye damage, etc., and achieve the effect of simple operation

Active Publication Date: 2016-04-13
INVENTRONICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of low brightness, the light emitted by the LED lamp will appear high-frequency flickering phenomenon. Although the human naked eye cannot observe this high-frequency flickering, it still has certain damage to the human eyes and has an impact on vision.

Method used

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  • A kind of led lamp and its dimming method
  • A kind of led lamp and its dimming method
  • A kind of led lamp and its dimming method

Examples

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Embodiment Construction

[0027] The present application provides an LED lamp, comprising: a power key, at least one dimming key, a dimming circuit, a control circuit, a storage unit, and an LED light source, wherein the power key and the dimming key are arranged on the LED light on the control panel of the

[0028] The control circuit is configured to detect the state of the dimming circuit when receiving the power trigger signal generated by the operator triggering the power button, and control the LED light source to turn on or off according to the state of the dimming circuit. The state control signal of extinguishing is provided to the dimming circuit;

[0029] Specifically, when it is detected that the dimming circuit is in the first state of outputting current, a extinguishing state control signal for controlling the extinguishment of the LED light source is generated; when it is detected that the dimming circuit is in the second state of not outputting current and generating a lighting state c...

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PUM

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Abstract

The invention discloses a light-emitting diode (LED) lamp and a light-dimming method thereof. The light-dimming method of the LED lamp comprises the following steps of: a corresponding light-dimming signal is determined to be supplied to a light-dimming circuit according to a received light-dimming trigger signal and stored, when an LED power source is turned on again after being turned off, the brightness of the LED power source is controlled to the brightness corresponding to the stored light-dimming signal before the power source is turned off, and accordingly, the brightness readjustment of the LED power source is avoided when the LED power source is turned on again. Particularly, the operation is simple and convenient when the LED power source needs to be kept in low brightness.

Description

technical field [0001] The present application relates to the technical field of LED lighting, in particular to an LED lamp and a dimming method thereof. Background technique [0002] At present, the LED lamps with dimming function appearing on the market generally use knobs for dimming. When the LED lamp is turned off and the LED lamp is turned on again next time, and the dimming is performed, it is still necessary to adjust from the maximum brightness. When the brightness of the LED lamp is kept at a relatively dim brightness, the operation is complicated. [0003] In addition, LED lamps with dimming function on the market use PWM (PulseWidthModulation, pulse width modulation) to achieve dimming. Specifically, the current output to the LED lamp is subjected to DC chopping, so that the average current on the LED lamp follows the PWM The duty cycle of the pulse signal varies. Specifically, the smaller the duty cycle of the PWM pulse signal, the smaller the average current o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 华桂潮
Owner INVENTRONICS HANGZHOU