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LED drive system

A technology of light-emitting diodes and light-emitting diode lamps, which is applied in the field of drive systems, can solve problems such as difficult production, high cost, and complicated circuits, and achieve the effect of reducing usage

Active Publication Date: 2018-09-28
SEMISILICON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the number of parallel-connected LED light string modules increases, the relative number of control lines and addressing lines increases, resulting in complicated wiring, difficult fabrication, and high cost.

Method used

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Experimental program
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Embodiment Construction

[0069] For the detailed description and technical content of the present invention, please refer to the following detailed description and accompanying drawings as follows, and the accompanying drawings and detailed description are for illustration purposes only, and are not intended to limit the present invention.

[0070] Please refer to figure 1 , which is a block diagram of the first embodiment of the LED driving system of the present invention; an LED driving system 10 is applied to an LED lamp string 20 and an AC power supply device 30 . The light emitting diode drive system 10 includes a switch unit 102, a control unit 104, a light emitting signal generating unit 106, a zener diode 108, a first capacitor 110, a second capacitor 112, a third capacitor 114, a first Resistor 116 , a bridge terminal resistor 118 , a load capacitor 120 , a bridge rectifier 122 , a filter capacitor 124 and a first connector 126 .

[0071] The switch unit 102 includes a power input terminal 1...

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Abstract

The invention discloses a light-emitting diode driving system which is applied to a light-emitting diode lamp string. The light-emitting diode driving system comprises a switch unit, a control unit and a light emission signal generation unit. The switch unit comprises a power input end, a power output end and a controlled end. The power output end is electrically connected with the light-emitting diode lamp string. The control unit is electrically connected with the switch unit. The light emission signal generation unit is electrically connected with the control unit and the power output end. When the control unit controls the switch unit not to be conducted, the light emission signal generation unit generates a light emission signal. The light emission signal generation unit transmits the light emission signal to the light-emitting diode lamp string.

Description

technical field [0001] The invention relates to a driving system, in particular to a light emitting diode driving system. Background technique [0002] At present, LED light string modules can be roughly divided into two connection methods: serial connection and parallel connection, and these two types of LED light string modules are also widely used by users on building exteriors, trees, signboards and landscaping objects. To increase the appearance beauty of such things. [0003] In the known series-type LED light string module, multiple groups of LED light string modules are connected in series, and the number of series-connected LED light string modules is determined according to the volume of the coiled object, and after the series connection The LED lamp groups of all the LED lamp string modules are controlled by the controller of the first LED lamp string module. [0004] Although this series connection method makes the LED light string modules easy to be used in se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 彭文琦
Owner SEMISILICON TECH