Driving control system with multiple LED (light emitting diode) loads for automobile

A drive control and automotive technology, applied in lighting devices, light sources, electric light sources, etc., can solve problems such as excessive voltage and reduced service life of LED lights, and achieve improved stability, improved work efficiency, and sensitive response to switch control signals Effect
CN102612232AActive Publication Date: 2012-07-25SHANGHAI SEEYAO ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI SEEYAO ELECTRONICS CO LTD
Publication Date
2012-07-25

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Abstract

The invention provides a driving control system with multiple LED (light emitting diode) loads for an automobile. The driving control system comprises a first power supply unit, a second power supply unit and a control unit, wherein the first power supply unit and the second power supply unit are both provided with a sampling unit and are used for providing load voltages to respective load based on the switching conditions of the respective controlled switch unit; and the control unit is used for outputting a balance signal for controlling a constant unit in the first power supply unit and a switch control signal for regulating and controlling the switching frequency of each controlled switch unit based on the sampling result of each sampling unit, wherein the constant unit is used for converting the direct current voltage output by the first power supply unit into a corresponding load voltage and regulating the corresponding load voltage based on the balance signal, so that the power supplied for each load is kept constant, and the sampling units are used for collecting the voltage signal of each controlled switch unit and the power supply signal of each load. According to the system, the voltage of each load can be kept stable.
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Description

technical field

[0001] The invention relates to the field of drive control, in particular to a drive control system for multiple LED loads used in automobiles. Background technique

[0002] With the increase of high-power LED lamps used in vehicles, the drive control system must be able to provide stable power to each LED lamp. LED lights output stable power. This makes these LED lights in use will be subject to excessive or low voltage, so that the service life of the LED lights is greatly reduced. Therefore, how to improve the existing drive control system to timely adjust the output power of each LED lamp and provide stable drive control for multiple LED lamps is a problem to be solved by those skilled in the art. Contents of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a drive control system for multiple LED loads for automobiles, so as to provide stable drive control for multip...

Claims

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