A temperature compensation circuit and led lamp

A temperature compensation circuit and circuit technology, applied in the field of lighting, can solve the problems of unstable current output of LED lamps, affecting the reliability and service life of LED lamps, high heat generation of high-power LED lamps, etc., to achieve a good feedback control effect, improve Work reliability, the effect of ensuring adaptability

Inactive Publication Date: 2016-12-28
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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Problems solved by technology

However, the calorific value of high-power LED lamps is still large. When used for a long time, the internal temperature of LED lamps can reach above 70°C. When the temperature is high, the working performance of circuit components will change due to the influence of temperature, resulting in The current output of the LED lamp is unstable, which affects the reliability and service life of the LED lamp

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  • A temperature compensation circuit and led lamp
  • A temperature compensation circuit and led lamp
  • A temperature compensation circuit and led lamp

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Embodiment Construction

[0027] 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 creative efforts fall within the protection scope of the present invention.

[0028] refer to figure 1 , is a schematic composition diagram of the first embodiment of the temperature compensation circuit of the present invention. The temperature compensation circuit includes a comparison circuit 1, an amplifier circuit 2, an adjustment circuit 3 and an output circuit 4, the input terminal of the comparison circuit 1 is connected to the output circuit, and the output terminal of the comparison circuit 1 is connected to the amplifier circuit 2...

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PUM

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Abstract

The invention discloses a temperature compensation circuit which comprises a comparison circuit, an amplifying circuit, an adjusting circuit and an output circuit. The input end of the comparison circuit is connected with the output circuit, the output end of the comparison circuit is connected with the amplifying circuit, and the comparison circuit is used for receiving voltage signals and outputting control signals to the amplifying circuit. The amplifying circuit is connected with the adjusting circuit and the output circuit, and the amplifying circuit is used for receiving the control signals output by the comparison circuit and amplifying and outputting currents. The adjusting circuit is used for carrying out temperature compensation on the amplifying circuit when temperature is changed. The output circuit is used for inputting feedback voltage signals to the comparison circuit according to the currents output by the amplifying circuit. The invention further discloses an LED lamp. Through the temperature compensation circuit and the LED lamp, the working reliability of the LED lamp and the adaptive capacity for temperature of the LED lamp can be improved.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a temperature compensation circuit and an LED lamp. Background technique [0002] As we all know, LED lights have high luminous efficiency and low energy consumption, and have been widely used in various places. The calorific value of ordinary LED lamps is greatly reduced compared with that of previous lamps such as metal halide lamps and incandescent lamps. However, the calorific value of high-power LED lamps is still large. When used for a long time, the internal temperature of LED lamps can reach above 70°C. When the temperature is high, the working performance of circuit components will change due to the influence of temperature, resulting in The current output of the LED lamp is unstable, which affects the reliability and service life of the LED lamp. Contents of the invention [0003] The technical problem to be solved by the embodiments of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/00
Inventor 周明杰王现中
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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