Cascaded bus dimming driver

An optical driver and bus technology, applied in the electronic field, can solve the problems of short communication distance, high cost of wireless dimming, complex system, etc., and achieve the effect of smooth light change, good linearity and high dimming precision

Inactive Publication Date: 2018-07-17
大山科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (3) Wireless signal dimming: wireless communication dimming, such as zigbee, Bluetooth, WiFi, etc., wireless dimming is expensive, the system is complex, and the communication distance is short

Method used

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  • Cascaded bus dimming driver

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are Some, but not all, embodiments of the invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] This embodiment provides a cascaded bus dimming driver, including a microprocessor, a cascaded bus data receiving module, a cascaded bus sending module, an input filter module, a...

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PUM

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Abstract

The invention discloses a cascaded bus dimming driver. The cascaded bus dimming driver comprises a microprocessor, a cascaded bus data receiving module, a cascaded bus transmitting module, an input filtering module, a voltage conversion module, a constant current driving module, an output current adjustment module, a dimming module and an output voltage monitoring module; the input end of the cascaded bus data receiving module is connected with the input end of the cascaded bus transmitting module and the input end of the input filtering module; the cascaded bus data receiving module and the cascaded bus transmitting module are connected with the microprocessor separately; the output end of the input filtering module is connected with the input end of the voltage conversion module and theinput end of the constant current driving module; the output end of the voltage conversion module is connected with the power supply input end of the microprocessor; the input end of the output current adjustment module is connected with the output end of the microprocessor; the output end of the output current adjustment module is connected with the input end of the constant current driving module; the input end of the dimming module is connected with the output end of the microprocessor; and the output end of the dimming module is connected with the input end of the constant current drivingmodule.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to a cascaded bus dimming driver. Background technique [0002] The existing lighting dimming drive dimming methods mainly include the following types: [0003] (1) Bus dimming: use bus communication dimming, such as DALI bus, DMX512, etc., all of which require dedicated bus cables; [0004] (2) Analog signal dimming: use 0-10V or 1-10V analog voltage signal for dimming, and also need a special dimming signal cable; [0005] (3) Wireless signal dimming: use wireless communication dimming, such as zigbee, Bluetooth, WiFi, etc. Wireless dimming is expensive, the system is complex, and the communication distance is short. Contents of the invention [0006] The object of the present invention is to propose a cascaded bus dimming driver to solve the above problems. [0007] Cascade bus dimming driver, including microprocessor, cascade bus data receiving module, casca...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/10H05B45/37
Inventor 李太平
Owner 大山科技有限公司
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