Microcontroller Burst Mode for Lighting Standby Communication
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Solution Overview
Problem
In lighting systems, particularly during standby/sleep mode, microcontrollers often fail to receive or transmit messages due to insufficient power supply, leading to operational issues and potential failure to meet communication standards like DALI, as they enter low power consumption modes.
Innovation Solution
The implementation of periodic power bursts to the microcontroller during standby/sleep mode ensures continued communication by maintaining a sufficient power supply, allowing the microcontroller to receive and transmit messages while the lighting elements remain in a low power consumption mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the lighting driver enters low power consumption mode during standby, then power consumption is reduced, but the microcontroller cannot receive or transmit messages from the control system
Solution Approach 1:
The microcontroller enters periodic burst modes during standby state, temporarily increasing power supply to perform communication tasks with the control system, then returning to low power mode. This periodic activation allows communication while maintaining overall low power consumption.
Solution Approach 2:
The power supply to the microcontroller is made dynamic by switching between low power consumption mode and burst mode based on communication requirements. The system adapts power levels in real-time rather than maintaining a fixed power state.
2Reliability
If sufficient power is supplied to the microcontroller during standby mode, then communication with the control system is maintained, but power consumption increases
Solution Approach 1:
Instead of continuous power supply, the microcontroller receives periodic power bursts only when communication is needed. This maintains communication reliability while minimizing power consumption by keeping the microcontroller in low power mode between bursts.
Solution Approach 2:
The power supply parameters to the microcontroller are dynamically changed between low power consumption level and sufficient power level based on communication requirements, optimizing the balance between reliability and energy usage.
Data Source
AI summary
Provided is a lighting system that includes a plurality of lighting elements which emit light, a power supply which supplies power, a lighting driver comprising a microcontroller and which outputs power to the plurality of lighting elements for operation thereof; and a control system which transmits a control signal to the microcontroller to initiate a standby mode of the plurality of lighting elements. The microcontroller receives the control signal and decreases output power supplied to the plurality of lighting elements, while remaining in a low power consumption mode for communicating with the control system during standby mode.