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LED lamps with adjustable brightness

An LED lamp and adjustable technology, applied in the use of semiconductor lamps, electrical components, electroluminescent light sources, etc., can solve the problem of high price, save power, avoid data redundancy, and avoid the effect of collecting invalid data

Inactive Publication Date: 2018-01-02
冷俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is also more expensive and requires a special knob plate

Method used

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  • LED lamps with adjustable brightness
  • LED lamps with adjustable brightness
  • LED lamps with adjustable brightness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Figure 1 to Figure 3 A LED lamp with adjustable brightness according to an embodiment of the present invention is schematically shown.

[0048] Such as figure 1 As shown, the device includes an LED light source 20 , a driving circuit 30 , a sampling timing circuit 50 , an energy storage circuit 60 and a central processing circuit 70 .

[0049] Wherein, the driving circuit 30 is used to drive the LED light source 20 to work.

[0050] Both ends of the drive circuit 30 are respectively connected to the commercial power and the LED light source 20 .

[0051] A power switch 10 is connected in series between the commercial power and the driving circuit 30 .

[0052] The sampling timing circuit 50 is connected with the power switch 10 for monitoring the state of the power switch 10 and recording the duration T from one state to another state of the power switch 10 .

[0053] The central processing circuit 70 includes a comparison module and a dimming module.

[0054] Whe...

Embodiment 2

[0098] Another LED lamp with adjustable brightness is different from Embodiment 1 in that the energy storage power supply can only work continuously for 30-50 seconds for the sampling timing circuit and the central processing circuit after the power switch is disconnected. Thus, when the power switch is turned off for longer than 30-50 seconds, the sampling timing circuit and the central processing circuit will also stop working due to lack of power, thereby avoiding collection of invalid data and saving electric energy.

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Abstract

The invention discloses a method for controlling the brightness of a lamp, which comprises the following steps: S1, start monitoring the state of a power switch, and start timing; S2, record the duration T of the power switch from one state to another state; S3 1. Comparing the recorded duration T with the preset value T0; S4. According to the comparison result, choose to perform the following operations: gradually increase the brightness of the lamp until the brightness of the lamp is the brightest; or gradually reduce the brightness of the lamp , until the brightness of the lamp is the darkest. Using the above lamp brightness control method can use the original power switch to dim the lamp, not only does not need to replace or modify the accessories of the existing circuit, but also does not need a special remote control, special touch electrodes, special touch panels or special Knob Board. It is thus more convenient to install and use. The invention also discloses an LED lamp whose brightness can be adjusted by an ordinary power switch.

Description

technical field [0001] The invention relates to a lighting fixture, in particular to a method for controlling the brightness of the lighting fixture and an LED lighting fixture with adjustable brightness. Background technique [0002] LED is currently the most widely used energy-saving light source in my country, which is advocated by the state. Due to the inherent characteristics of LEDs, it is not suitable to use constant voltage ignition, nor can it be used to adjust the driving voltage to adjust the light. LEDs can be dimmed by adjusting the magnitude of the driving current, but due to the technical structure characteristics of LEDs, adjusting the driving current of LEDs in a large range will cause a large change in the color of light emitted by LEDs. [0003] In order to overcome the above problems, it is generally used to realize the dimming of LED by fast ignition-off and controlling the ignition / extinguishment ratio (duty cycle) on the basis of constant current driv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/30
Inventor 冷俊
Owner 冷俊