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Starry sky roof LED controller based on switching characteristics of field effect transistor

A technology of LED controller and field effect tube, which is applied in the field of starry top LED controllers, can solve problems such as not being able to meet the needs of use, and achieve the effects of strong anti-interference ability, good real-time performance and load capacity

Inactive Publication Date: 2021-02-05
WUHU MOTIONTEC AUTOMOTIVE
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

LED lights of various colors on the starry sky top, the traditional starry sky LED drive method uses triodes, which can no longer meet the needs of people

Method used

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  • Starry sky roof LED controller based on switching characteristics of field effect transistor
  • Starry sky roof LED controller based on switching characteristics of field effect transistor

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Embodiment Construction

[0009] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0010] Such as figure 1 and 2 As shown, this embodiment provides a starry top LED controller based on the switching characteristics of field effect transistors, including a main MCU, the main MCU is connected with a key circuit and a pickup circuit, and the main MCU is connected with a field effect transistor (MOS) circuit for its Control; the effect tube (MOS) circuit is connected to the LED on the top of the starry sky; the pickup circuit is used to monitor the melody and rhythm of the music in the car, and the button circuit is used for manual pressing; the main MCU judges according to the button circuit or the pickup circuit, and the main MCU passes Control the turn-on and turn-off t...

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Abstract

The invention provides a starry sky roof LED controller based on switching characteristics of a field effect transistor. Judgment is performed through a main MCU according to a key circuit or a pickupcircuit, the main MCU controls the switching time of the field effect transistor (MOS) circuit by controlling a driving triode, therefore power supply voltages with different duty ratios are controlled to be output, and color mixing and dimming are achieved on a starry sky roof LED. A driving capability ratio of the field effect transistor (MOS) circuit is large, and a bearable voltage and current are also large so that the star sky roof LED controller of the field effect transistor scheme can lighten more LED lamp beads at the same time, has better real-time performance and load capacity, and is higher in anti-interference capability.

Description

technical field [0001] The invention relates to the field of automotive star roofs, in particular to a star roof LED controller based on field effect tube switching characteristics. Background technique [0002] With the continuous development of automobile technology, people have higher and higher requirements for the use of automobiles, including the requirements for the atmosphere in the car, and the star roof came into being. The LED lights of various colors on the starry sky top, the traditional starry sky LED drive method uses a triode, which can no longer meet the needs of people. A new starry top LED controller is needed. Therefore, it is necessary to solve this problem. Contents of the invention [0003] In order to solve the above problems, the present invention provides a starry top LED controller based on the switching characteristics of field effect tubes. The main MCU judges according to the key circuit or pickup circuit, and the main MCU controls the field...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q3/74B60Q3/208B60Q3/80
CPCB60Q3/74B60Q3/208B60Q3/80
Inventor 周玉成汪义文沈强朱平饶世强
Owner WUHU MOTIONTEC AUTOMOTIVE
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