Integrated Wired Wireless Dimming Circuit for Lighting Control
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Solution Overview
Problem
Conventional lighting control systems require separate manufacturing of wired and wireless dimming circuits, leading to increased costs and complexity due to the use of complicated circuits with OP-AMPs, which results in high prices and large volumes.
Innovation Solution
A lighting control apparatus that integrates wired (0 to 10V dimming) and wireless (Zigbee dimming) dimming circuits in a single circuit, allowing the wired and wireless modules to be connected in parallel, thereby miniaturizing and integrating components, and selectively receiving either wired or wireless dimming signals for controlling the lighting unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired and wireless dimming circuits are manufactured separately, then each circuit can be optimized for its specific function, but the overall system complexity and manufacturing cost increase
Solution Approach 1:
The patent combines wired and wireless dimming circuits into a single integrated circuit board. The wired module and wireless module share common components including power supply circuitry, control logic, and the dimming execution mechanism. This merging reduces the number of separate circuits from two to one, simplifying the overall system while maintaining the reliability of both dimming methods through shared critical components.
Solution Approach 2:
The integrated circuit board is designed to perform multiple functions: it can receive and process both wired dimming signals (0-10V) and wireless dimming signals (Zigbee protocol) through a single unified architecture. The control module universally handles both signal types and converts them to a common control format for the lighting unit, making the system multi-functional without requiring separate dedicated circuits for each dimming method.
2Measurement precision
If complicated circuits with OP-AMPs are used for wired dimming, then precise dimming control is achieved, but manufacturing cost and PCB size increase
Solution Approach 1:
The patent changes the parameter of the wired dimming circuit by replacing the traditional OP-AMP-based voltage control approach with a microcontroller-based digital control approach. The microcontroller reads the 0-10V analog signal, converts it to a digital value, and processes it through software algorithms to achieve precise dimming control. This parameter change from analog circuitry to digital processing maintains precision while dramatically reducing component count and manufacturing cost.
Solution Approach 2:
The patent substitutes the mechanical/electronic OP-AMP circuit system with a digital microcontroller system. Instead of using analog operational amplifiers to precisely control voltage levels for dimming, the system uses a microcontroller with analog-to-digital conversion and digital signal processing. This substitution maintains the precision of dimming control while eliminating the need for expensive and space-consuming analog components.
3Adaptability or versatility
If separate wired and wireless dimming circuits are implemented, then each circuit can be independently optimized, but the PCB volume and component count increase
Solution Approach 1:
The patent merges the wired and wireless dimming circuits into a single integrated circuit board layout. Both the wired module (receiving 0-10V signals) and wireless module (receiving Zigbee signals) are implemented on the same PCB with shared power supply rails, common ground connections, and a unified control module. This spatial merging reduces the overall PCB volume while maintaining the adaptability to accept both types of dimming inputs through carefully arranged input interfaces.
Data Source
AI summary
A lighting control apparatus using a wire and wireless integrated dimming circuit includes: an input power supply unit; a converter for converting input power to lighting unit supply power; a lighting unit applied with the lighting unit supply power to emit light; a wired module for inputting a wired dimming signal for controlling the lighting unit; a wireless module for inputting a wireless dimming signal for controlling the lighting unit; and a transform module for receiving the wired dimming signal or the wireless dimming signal, transforming the received dimming signal to a preset power, and applying the transformed power to the converter, in which the wired module and the wireless module are connected in parallel, selectively receive the wired dimming signal or the wireless dimming signal, and applies the received dimming signal to the transform module.