Lighting Control Device Power via 0-10V Interface
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current lighting control systems for luminaires require additional power sources, increasing complexity and cost, and struggle to effectively compensate for lumen depreciation without specialized equipment.
Innovation Solution
A lighting control device that uses a control module and processing module to modify a control voltage on a 0-10 V control interface, providing power via the interface and determining a duty cycle for the driving signal to control a controllable ballast or driver, eliminating the need for a separate power supply and incorporating lumen depreciation compensation through ambient temperature and operational time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional power sources are incorporated into control systems, then the control devices can be powered reliably, but the system complexity and cost increase
Solution Approach 1:
The patent combines the power delivery function with the control signal transmission function by using the control interface (0-10V bus) to carry both control voltages and power. The controllable ballast or driver serves dual purposes: it responds to control signals and simultaneously provides power to the lighting control device, eliminating the need for separate power sources and reducing system complexity.
Solution Approach 2:
The control interface is designed to serve multiple functions: it transmits control signals for dimming operations and simultaneously delivers power to the lighting control device. The controllable ballast or driver acts as both a control actuator and a power supply, providing universal functionality that reduces the overall number of components needed in the system.
2Reliability
If specialized equipment such as optical or electrical sensors is incorporated to compensate for lumen depreciation, then lumen depreciation can be compensated effectively, but the costs and complexity increase
Solution Approach 1:
The lighting control device monitors its own operating conditions (operational time, ambient temperature) and automatically adjusts the control voltage to compensate for lumen depreciation. The device uses its own power supply and processing capabilities to determine when compensation is needed and implements the compensation by modifying the control signal, eliminating the need for external sensors or specialized equipment.
Solution Approach 2:
The system implements feedback control by monitoring operational time and ambient temperature, then adjusting the control voltage accordingly. The processing module continuously evaluates device lifespan and environmental conditions, and the control module responds by modifying the control signal to maintain consistent light output, creating a closed-loop compensation system without external sensors.
Data Source
AI summary
A lighting control device can include a control module and a processing module. The control module can provide a driving signal. The driving signal can modify a control voltage on a control interface. The control voltage can control a controllable ballast or driver. The processing module can determine a duty cycle of the driving signal. The control module and the processing module can receive power via the control interface and a power supply on the control device.