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LED power source platform capable of integrating various dimming ways

A technology of LED power supply and dimming method, which is applied in the direction of light source, electric light source, electrical components, etc., can solve the problems that cannot be compatible with the above dimming types at the same time, and achieve the effect of enhancing market adaptability and improving cost performance

Inactive Publication Date: 2014-02-05
ADPOWER TECH WUXI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the traditional LED dimmable power supply cannot be compatible with the above dimming types at the same time, these power supplies on the market are designed for different dimmers

Method used

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  • LED power source platform capable of integrating various dimming ways
  • LED power source platform capable of integrating various dimming ways

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specific Embodiment approach

[0032] Such as figure 2 As shown, the hardware structure of the present invention mainly includes a triode Q1, an operational amplifier OP1, a PWM controller IC1, an optocoupler OPTO1, an optocoupler OPTO2 and a sampling resistor RS1. Among them, the transistor Q1 and its surrounding resistors constitute the rectification and conduction angle detection module A; the optocoupler OPTO1 and its surrounding resistors and capacitors constitute the conduction angle signal transmission network B; the optocoupler OPTO2 and its surrounding resistors constitute the current feedback network C; the operational amplifier OP1 and its surrounding resistors and capacitors form the output current adjustment module D; the PWM controller IC1 and its surrounding MOS tubes, transformers, diodes, and capacitors form the power conversion circuit E; the sampling resistor RS1 forms the output current sampling F.

[0033] When the present invention uses the input AC phase-cutting dimmer, the triode Q1...

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Abstract

The invention discloses an LED power source platform capable of integrating various dimming ways. The LED power source platform comprises a rectification and conduction angle detection module, a conduction angle signal transmitting network, a current feedback network, an output current adjusting module, a power conversion circuit and an output current sampling module. The rectification and conduction angle detection module is connected with an input end and the conduction angle signal transmitting network, the input end of the output current adjusting module is connected with the conduction angle signal transmitting network or the dimming signal output end of another dimming way interface module, the input end of the output current adjusting module is connected with the output current sampling module, the output end of the output current adjusting module is connected with the current feedback network, the current feedback network is connected with the power conversion circuit, and the output current sampling module is connected with the power conversion circuit. The LED power source platform capable of integrating the various dimming ways can be compatible with various dimmers, the cost performance of an LED dimming light source is improved, and the market adaptive capacity of the LED dimming light source is improved.

Description

technical field [0001] The invention belongs to a dimmable LED switching power supply, in particular to a dimmable LED power supply that is required to be compatible with AC phase-cut dimming and other dimming methods. Background technique [0002] LED is a display device with excellent performance, which has the advantages of long life, energy saving, high brightness, various luminous colors, fast response speed and low driving voltage. While saving energy, it can also adjust the LED luminous intensity, change the luminous color, and realize various display effects. Now it is widely used in urban lighting, architectural landscape lighting, stage lighting design and other fields. [0003] In the dimming application of LEDs, from the perspective of dimmer types, dimmable power supplies are classified into: AC phase-cut dimming power supplies, 0-10V (1-10V) dimming power supplies and other dimming power supplies. Because the traditional LED dimmable power supply cannot solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02H02M7/217
Inventor 许若鹏
Owner ADPOWER TECH WUXI
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