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Constant-voltage and current sharing system for LED

A technology of flow system and current sharing bus, applied in the field of LED constant voltage current sharing system, can solve the problems of no current sharing circuit and poor current sharing effect, and achieve the effect of improving the current sharing effect

Active Publication Date: 2018-10-16
TRIDONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an LED constant voltage current sharing system, aiming to solve the problem of poor current sharing effect in the prior art due to no current sharing circuit

Method used

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  • Constant-voltage and current sharing system for LED
  • Constant-voltage and current sharing system for LED

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] figure 2 The module structure of the LED constant voltage and current sharing system provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0019] An LED constant voltage current sharing system, which includes multiple current sharing modules 01i, multiple DC power sources 02i and LED load modules 03.

[0020] Among them, multiple current equalizing modules 01i are connected to multiple DC power supplies 02i in one-to-one correspondence, ...

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Abstract

The invention belongs to the field of LED, and provides an constant-voltage and current sharing system for LED. According to the constant-voltage and current sharing system for LED, comprises a plurality of current sharing modules, a plurality of DC power sources and a LED load module; the plurality of current sharing modules are in one-to-one correspondence connection with the plurality of DC power sources; each current sharing module detects an output voltage of a corresponding DC power source, and generates an equalization voltage according to the output voltage; a plurality of equalizationvoltages generated by the plurality of current sharing modules are output to the current sharing bus to generate a current bus voltage, and each current sharing module generates a feedback signal according to the current sharing bus voltage so as to adjust the output voltage of the corresponding DC power source, so that the current sharing effect of the parallel power source of the LED load module can be improved.

Description

technical field [0001] The invention belongs to the field of LEDs, in particular to an LED constant voltage and current sharing system. Background technique [0002] As the power of the LED load module increases, the requirement for the power supply current is increasing. A high-power LED system needs several or more than a dozen power modules to supply power. All the power modules share the load, which requires the power module to have a complete Stable current sharing circuit. [0003] In the existing technology, such as figure 1 As shown, the parallel power supply of the LED load module uses the load change rate of the power supply itself and the DC-blocking diode to achieve natural current sharing, without the need for a complicated current-sharing circuit, and only needs to add a DC-blocking diode at the output of each power module. However, due to its own load change rate and DC blocking diodes to achieve natural current sharing, the current sharing effect is poor. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00H02J1/10H02M7/08H05B45/395Y02B20/30
Inventor 林耀烽
Owner TRIDONIC
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