An LED load detection feedback circuit
CN224697922UActive Publication Date: 2026-08-28SHENZHEN XINYI TECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202522015520.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Technical Problem
[0004]本实用新型提出一种LED负载检测反馈电路，解决了现有技术中缺乏对LED负载工作电流的实时精准检测以及反馈调节的技术问题
Benefits of technology
[0015]本实用新型中，通过设置电流检测电路，能够实时精准地检测负载驱动电路中LED负载的工作电流，并将检测信号传输至反馈调节电路。反馈调节电路结合参考电压，对检测到的电流信号进行分析处理，进而输出调节信号至负载驱动电路，实现对LED负载工作电流的动态调整。这一设计使得LED负载能在不同工况下始终工作在稳定的电流状态，有效避免了因电流异常导致的发光不稳定、闪烁等问题，提高了LED发光的稳定性和可靠性；同时，有助于延长LED的使用寿命，降低更换成本；还能确保LED在各种使用场景下都能保持良好的发光性能，满足多样化的照明需求。
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Abstract
The utility model relates to LED technical field, specifically propose a kind of LED load detection feedback circuit, including main control circuit, load driving circuit, current detection circuit and feedback regulating circuit, the control signal of main control circuit is received to the first input end of load driving circuit, load driving circuit is used to drive the work of LED load, the working current of load driving circuit is connected to the input end of current detection circuit, the first input end of feedback regulating circuit is connected to the output end of current detection circuit, the second input end of feedback regulating circuit is connected reference voltage, the second input end of load driving circuit is connected to the output end of feedback regulating circuit. Through above-mentioned technical scheme, the technical problem of lacking real-time accurate detection and feedback regulation to LED load working current in prior art is solved.
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