Triode voltage-stabilizing power supply used for LED light strip and with voltage clamping treatment effect
A technology of LED strips and voltage clamping, applied in electric light sources, electroluminescent light sources, light sources, etc., can solve the problems of unstable output voltage and current, low load capacity, etc., achieve stable oscillation, improve load capacity, dynamic maintain a smooth effect
Inactive Publication Date: 2018-04-20
CHENGDU SAIPUQI TECH CO LTD
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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 a three-manifold regulated power supply for LED strips with voltage clamping processing
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[0021] like figure 1 As shown, the present invention is mainly composed of a control chip U2, a transformer T, a three-manifold DC voltage regulator circuit, a diode rectifier U1, a resistor R1, an adjustable resistor R5, a resistor R16, a polar capacitor C1, a polar capacitor C3, and a polar capacitor C4, a polar capacitor C5, a Zener diode D1, an active clamping circuit, a source voltage stabilizing circuit, and an overvoltage and overcurrent adjustment circuit.
[0022] When connected, the three-manifold DC voltage stabilizing circuit is connected in series between the end with the same name and the end with the same name of the inductance coil on the secondary side of the transformer T. The active clamping circuit is connected in series between the terminal with the same name of the inductance coil L1 on the primary side of the transformer T and the P pole of the Zener diode D1. The source voltage stabilizing circuit is connected in series between the inductance coil L1 o...
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The invention discloses a triode voltage-stabilizing power supply used for an LED light strip and with a voltage clamping treatment effect. The triode voltage-stabilizing power supply is characterizedby mainly comprising a control chip U2, a transformer T, a triode direct-current voltage-stabilizing circuit, a diode rectifier U1, a source electrode voltage-stabilizing circuit, a voltage-stabilizing diode D1, a polar capacitor C5, a polar capacitor C4, an active clamping circuit, a polar capacitor C3, and an overvoltage and overcurrent adjustment circuit and the like, wherein the active clamping circuit is connected between the dotted terminal of a primary side inductive coil L1 of the transformer T and the P electrode of the voltage-stabilizing diode D1 in series; the positive electrode of the polar capacitor C3 is connected with the non-dotted terminal of a secondary side inductive coil L3 of the transformer T while the negative electrode of the polar capacitor C3 is connected with the dotted terminal of the secondary side inductive coil L3 of the transformer T; and the overvoltage and overcurrent adjustment circuit is connected with the control chip U2. By adoption of the triodevoltage-stabilizing power supply, the high voltage pulse in the voltage and the high current ripple in the current can be effectively adjusted to enable the voltage and the current to be maintained in dynamic smooth and steady states, thereby ensuring that the triode voltage-stabilizing power supply can output stable voltage and current.
Description
technical field [0001] The invention relates to a power supply for a light strip, specifically, a three-manifold stabilized power supply for an LED light strip with voltage clamping processing. Background technique [0002] At present, with the continuous improvement of people's living standards, the requirements for the beautification of the living environment are getting higher and higher. In order to beautify their living environment, people use LED strips with various light sources to beautify the interior. The LED light strips are 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 output voltage and current of the power supply of the existing LED light strips are unstable, 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 strip p...
Claims
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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/37
Inventor 余泓德
Owner CHENGDU SAIPUQI TECH CO LTD