Single PCB Design for Cost-Effective Connected LED Lamps
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Summary
Problems
Existing connected LED lamps require multiple printed circuit boards (PCBs) and expensive driver solutions, increasing cost and complexity.
Innovation solutions
Implementing a connected LED lamp on a single metal core printed circuit board (PCB) that integrates LEDs, an LED driver circuit, wireless connectivity, and a power supply, utilizing a microcontroller unit (MCU) for control and a helical or monopole antenna for wireless communication.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If multiple PCBs are used for LED board, wireless module, and power board, then functional separation and reliability are improved, but device complexity and manufacturing cost increase
Why choose this principle:
The patent combines the LED driver circuit, wireless communication module, power management circuit, and control logic onto a single PCB, eliminating the need for separate LED board, wireless module, and power board. This integration reduces the number of PCBs from three to one, simplifying the overall device structure while maintaining all necessary functions through shared power supply and ground connections.
Principle concept:
If multiple PCBs are used for LED board, wireless module, and power board, then functional separation and reliability are improved, but device complexity and manufacturing cost increase
Why choose this principle:
The single PCB is designed to perform multiple functions simultaneously: it serves as the structural base, electrical connection medium, signal transmission path, and housing for various components including LEDs, wireless module, and power circuitry. This multi-functional design eliminates the need for specialized separate boards for each function.
Application Domain
Data Source
AI summary:
Implementing a connected LED lamp on a single metal core printed circuit board (PCB) that integrates LEDs, an LED driver circuit, wireless connectivity, and a power supply, utilizing a microcontroller unit (MCU) for control and a helical or monopole antenna for wireless communication.
Abstract
A lamp includes a single 1-layer metal core printed circuit board (PCB). The 1-layer metal core PCB includes a plurality of light emitting diodes (LEDs), an LED driver circuit, a microcontroller unit (MCU) providing wireless connectivity and control for the LED driver circuit, and a power supply circuit providing power for the LEDs and the MCU. The lamp includes an antenna, e.g., helical or monopole, mounted on the single 1-layer metal core PCB. Capacitor(s) and/or inductor(s) may be mounted on a bottom side of the 1-layer metal core PCB opposite a top side of the 1-layer metal core PCB on which the LEDs are mounted. The lamp is line powered. The LEDs are disposed on a periphery of a top side of the PCB and the MCU and other circuitry is disposed on the top side of the PCB inside of the periphery.