High-Voltage Light String Controller With Short-Circuit Protection
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Solution Overview
Problem
Existing high-voltage WRGB light strings are prone to damage due to insufficient self-protection capabilities when short-circuited, and controllers are vulnerable when connected to mains power.
Innovation Solution
A high-voltage light string controller with a first power supply module, main control module, and protection module that includes a photosensitive timing module, over-current protection, and a memory module, allowing direct connection to mains power and providing intelligent control, over-current protection, and memorization functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a controller is added to enable on/off control and color adjustment, then the light string achieves practical control functions, but the controller becomes vulnerable to damage when short-circuited due to insufficient self-protection capability
Solution Approach 1:
The controller performs self-protection by automatically detecting current magnitude through the protection module and autonomously cutting off power when short-circuit conditions are detected, eliminating the need for external protection devices
Solution Approach 2:
The protection module continuously monitors current magnitude and provides feedback to the main control module, enabling real-time detection of abnormal conditions and automatic response to protect the controller
2Power
If the controller is directly connected to mains power, then power consumption is reduced and brightness is improved, but the risk of damage from short-circuits increases
Solution Approach 1:
The protection module is pre-configured with current magnitude detection capability and protection thresholds, enabling the controller to prepare for and respond to short-circuit conditions before they cause damage
Solution Approach 2:
The controller incorporates a protection module that acts as a protective buffer against short-circuit damage, cushioning the impact of potential faults before they can harm the main control components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The controller ensures safe operation by detecting current magnitude, protecting against short circuits, and maintaining running states after power outages, enhancing practicality and energy efficiency with automatic lighting control.
Implementation Method 1
the protection module is suitable for identifying a magnitude of a current in the first power supply module, converting the current into a detection signal
Implementation Method 2
the photosensitive timing module is suitable for sending a photosensitive signal to the main control module by sensing external light
Data Source
AI summary
The present disclosure discloses a high-voltage light string controller, including a first power supply module, a main control module, and a protection module. The first power supply module is suitable for being connected to a mains supply to supply power to the main control module; the main control module is suitable for sending a control signal to a light string to turn on or turn off the light string or to switch a color; the protection module is suitable for identifying a magnitude of a current in the first power supply module, converting the current into a detection signal, and then sending the detection signal to the main control module; the main control module is suitable for receiving and judging the detection signal; and when the detection signal exceeds a preset value, the main control module is suitable for sending a control signal to turn off the light string.