Christmas Tree Lighting Control System With Short-Circuit Protection
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Solution Overview
Problem
Existing Christmas tree lighting systems face safety issues due to short circuits, which can cause malfunctions and accidents, and they consume excessive energy.
Innovation Solution
A Christmas tree lighting decoration control system with real-time short-circuit detection and protection, incorporating a power supply device with a rectifier filter circuit, transformer, and control device with detection and protection circuits, enabling immediate power shutdown upon short-circuit detection and allowing for multi-functional control of LED light strings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power supply protection function is set up in the circuit, then safety protection is provided, but response time is delayed causing components to be burned out
Solution Approach 1:
The patent implements preliminary protection by dividing the circuit into multiple isolated segments with individual protection circuits. Each segment has its own fuse and control circuit that can independently detect and respond to short circuits before they propagate to other parts of the system. This preliminary segmentation prevents catastrophic failures and reduces response time by localizing protection actions.
Solution Approach 2:
The lighting circuit is divided into multiple independent segments or zones, each with its own protection circuitry. When a short circuit occurs in one segment, only that specific segment is affected and can be quickly isolated without shutting down the entire system. This segmentation enables faster localized response and maintains system reliability.
2Device complexity
If traditional light string structure is used, then simplicity is maintained, but short circuit faults affect normal operation
Solution Approach 1:
The traditional series light string is segmented into multiple parallel circuits or zones. Each segment can operate independently, and protection circuits are distributed across segments rather than centralized. This maintains relative simplicity while dramatically improving reliability by preventing single-point failures from affecting the entire system.
Solution Approach 2:
The patent changes the electrical configuration parameter from traditional series connection to a segmented parallel or hybrid configuration. This parameter change allows current to bypass faulty segments through alternative paths, maintaining operation stability while keeping the overall structure relatively simple.
3Reliability
If power supply capacity is increased to prevent overload, then power protection is improved, but energy consumption increases
Solution Approach 1:
The system performs preliminary detection of power parameters and load conditions before overload occurs. Protection circuits monitor voltage, current, and power consumption in real-time and can preemptively shut down or throttle specific segments when abnormal conditions are detected, preventing the need for oversized power supplies while maintaining protection reliability.
Solution Approach 2:
The protection system is self-regulating, automatically detecting and responding to power anomalies without external intervention. The distributed protection circuits monitor their own segments and can independently adjust power distribution, eliminating the need for excessive power supply capacity margins while ensuring reliable protection.
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 system effectively prevents accidents by immediately shutting down power during short circuits, ensures low energy consumption, and provides convenient multi-functional control of LED light strings, enhancing operational safety and usability.
Implementation Method 1
a transformer T1 comprising a primary coil connected to the power chip U1 and a secondary coil
Implementation Method 2
a first rectifier filter circuit connected to the power input terminal
Implementation Method 3
the first rectifier filter circuit of the power circuit comprises a bridge stack BD1, capacitors EC1 and EC2, inductors L1 and L2 and resistors R1 and R2
Data Source
AI summary
A Christmas tree lighting decoration control system includes a power supply device, a control device and a LED light string for controlling on/off, flashing, color change and time setting of the LED light string. The power supply device includes a power circuit in a first housing, a first rectifier filter circuit, a power chip, a feedback circuit, a transformer and a second rectifier filter circuit. The control device includes a second housing with an operation key or a radio frequency remote control operation key, a plug-in input terminal, a second output terminal and a control circuit, which includes a power supply circuit, a detection and protection circuit, a main control chip IC1, a signal processing chip IC2 and a radio frequency receiving circuit, and function control circuit. The LED light string includes multiple groups of poleless dual-color or discrete poleless LED light strings connecting to a LED double-flash light bead.