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Overcurrent adjusting power supply based on triode direct current voltage stabilizing for LED lamp band

A technology of LED light strips and DC voltage stabilization, which is applied to the use of electric light sources, electroluminescent light sources, semiconductor lights, etc., can solve the problems of unstable output voltage and current, low load capacity, etc., achieve low output impedance, improve Load capacity, stable vibration effect

Inactive Publication Date: 2018-02-27
CHENGDU SAIPUQI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of unstable output voltage and current and low load capacity in the constant current power supply in the prior art, and provide an overcurrent adjustable power supply for LED strips based on three-manifold DC voltage regulation

Method used

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  • Overcurrent adjusting power supply based on triode direct current voltage stabilizing for LED lamp band
  • Overcurrent adjusting power supply based on triode direct current voltage stabilizing for LED lamp band
  • Overcurrent adjusting power supply based on triode direct current voltage stabilizing for LED lamp band

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Embodiment

[0024] Such as figure 1 As shown, the present invention mainly consists of control chip U2, transformer T, three-collector DC voltage stabilizing circuit, diode rectifier U1, resistor R1, adjustable resistor R5, resistor R16, polar capacitor C1, polar capacitor C3, and polar capacitor C4, polar capacitor C5, Zener diode D1, second-order active low-pass filter circuit, discrete bootstrap amplifier circuit, source voltage regulator circuit, and overvoltage and overcurrent adjustment circuit.

[0025] When connecting, the three-collector DC voltage stabilizing circuit is connected in series between the end of the same name and the end of the non-same name of the secondary inductor coil of the transformer T. The second-order active low-pass filter circuit is connected in series between the IS pin of the control chip U2 and the source voltage regulator circuit. The source voltage regulator circuit is connected in series between the primary inductor coil L1 of the transformer T and the...

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Abstract

The invention discloses an overcurrent adjusting power supply based on triode direct current voltage stabilizing for an LED lamp band. The overcurrent adjusting power supply is characterized by beingmainly composed of a control chip U2, a transformer T, a triode direct current voltage stabilizing circuit, a diode rectifier U1, a discrete bootstrap amplifying circuit, a source electrode voltage stabilizing circuit, a voltage stabilizing diode D1, a polar capacitor C5, a polar capacitor C4, a second-order active low-pass filter circuit, a polar capacitor C3, an over-voltage and over-current adjusting circuit and the like, wherein the over-voltage and over-current adjusting circuit is connected to the control chip U2. Through the overcurrent adjusting power supply based on triode direct current voltage stabilizing for the LED lamp band, high-voltage pulses in voltages and high-current ripples in currents can be effectively adjusted, thus the dynamic states of the voltages and the currents are maintained stable, and accordingly it is ensured that the power supply can output the stable voltages and currents.

Description

Technical field [0001] The present invention relates to a power supply for light strips, in particular, an overcurrent regulating power supply for LED light strips based on a three-collector DC stabilized voltage. Background technique [0002] At present, with the continuous improvement of people's living standards, the requirements for the beautification of life are getting higher and higher. In order to beautify their living environment, people use LED light strips with multiple light sources to beautify the interior. The LED light strip is placed in the dark groove on the top of the room to form a beautiful halo, which can not only beautify the living environment, but also bring a wonderful light to people at night. However, the power supply of the existing LED light strips has unstable output voltage and current, which causes the LED light strips to flicker during use, thereby affecting the service life of the LED light strips. At the same time, the existing LED lamp belt po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/30
Inventor 余泓德
Owner CHENGDU SAIPUQI TECH CO LTD
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