Independent LED Lamp Bead Drive Circuit for Fault-Tolerant Lighting
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Solution Overview
Problem
Existing Symphony point-controlled LED lamp beads connected in series face issues where a damaged bead can prevent subsequent beads from receiving control signals, leading to poor adaptability and increased packaging complexity due to the need for signal output and input connections.
Innovation Solution
An independent LED lamp bead design featuring a light-emitting body, drive circuit, and IC chip that receives and transmits trigger signals to drive the light-emitting body, eliminating the need for signal output connections between beads, allowing each bead to operate independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LED lamp beads are connected in series with signal output of current bead connected to signal input of next bead, then signal communication between all lamp beads is achieved, but device complexity increases due to need for welding pin brackets and signal output lines at both ends
Solution Approach 1:
The patent extracts the signal output function from the lamp bead structure by removing the signal output pin bracket and signal output line. The drive circuit directly drives the light-emitting body without requiring signal output connections, thereby simplifying the packaging structure while maintaining signal communication reliability through direct drive architecture.
Solution Approach 2:
The patent merges the signal input and power supply functions into a unified drive circuit architecture. The drive circuit receives control signals and power through integrated pins, eliminating the need for separate signal output lines and welding pin brackets, thus reducing device complexity while maintaining full functionality.
2Reliability
If welding pin brackets are arranged at both signal input end and signal output end with signal output line welding, then all lamp beads can be lit through series connection, but ease of manufacture deteriorates due to more packaging processes
Solution Approach 1:
The patent removes the signal output pin bracket and signal output line welding processes from the manufacturing workflow. By designing the drive circuit to directly drive the light-emitting body without external signal output connections, the patent reduces the number of packaging processes while ensuring all lamp beads can be lit through simplified connection methods.
3Ease of operation
If series connection with signal transmission between beads is used, then coordinated lighting control is achieved, but adaptability worsens when a bead is damaged as subsequent beads cannot receive control signals
Solution Approach 1:
The patent segments the lamp group into independent lamp bead units, each with its own drive circuit that can operate autonomously. This segmentation allows each bead to function independently, improving fault tolerance while maintaining coordinated lighting control through centralized control signals received by each bead's drive circuit.
Solution Approach 2:
The patent changes the operational parameter from series signal transmission to parallel independent operation. Each lamp bead receives control signals independently and operates autonomously, transforming the system from vulnerable series connection to resilient parallel architecture that maintains adaptability even when individual beads are damaged.
Data Source
AI summary
Disclosed are an LED lamp bead and an LED lamp group. The LED lamp bead includes a light-emitting body and a light-bead bracket; and the lamp-bead bracket includes a light-emitting body fixing structure and a drive circuit; the light-emitting body fixing structure is configured for fixing the light-emitting body, and the drive circuit is connected with the light-emitting body, for driving the light-emitting body to emit light in response to a lamp bead trigger signal; and the drive circuit includes an input pin and power supply pins, the power supply pins are connected to a power supply, and the input pin is configured to receive the lamp bead trigger signal and transmit it to the drive circuit, so that the drive circuit drives the light-emitting body to emit light. The LED lamp bead provided by the present application drives the light-emitting body to emit light through the drive circuit.