AC to DC Leakage Detection Circuit for Outdoor Lighting
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Solution Overview
Problem
There is a need for an electric-leakage detection system that can effectively warn people of electric shocks from electronic equipment, particularly in situations like rainy seasons or after typhoons when electric-leakage from light poles can occur.
Innovation Solution
The system includes an electric-leakage detection device with a module that converts AC electric-leakage voltage into DC, a switch module that turns on or off based on the DC voltage, and an indicator that outputs a signal when the switch is conducted, thereby warning of electric-leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AC electric-leakage voltage is directly used to control the switch module, then the detection response would be immediate, but the switch module and indicator cannot operate reliably due to AC voltage fluctuations and polarity changes
Solution Approach 1:
The patent converts the AC electric-leakage voltage into DC voltage through a voltage conversion circuit, changing the electrical parameter from alternating current to direct current. This enables the switch module and indicator to operate reliably with stable polarity and voltage levels, resolving the reliability issue while the circuit complexity is managed as an acceptable trade-off.
2Ease of manufacture
If the detection device is installed on existing lamps, then the installation is simple and cost-effective, but the device must operate from limited power sources available on lamp fixtures
Solution Approach 1:
The detection device is designed to be electrically connected to the lamp's power circuit and can operate from the existing power source on lamp fixtures. The circuit is configured to detect electric-leakage voltage from the lamp while being powered from the same power source, making the device universally applicable to different lamp types without requiring separate power supplies or complex installations.
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 automatically detects electric-leakage and outputs an indication signal to warn surrounding people, effectively preventing electric shocks and ensuring safety.
Implementation Method 1
an electric-leakage detection module, a switch module and an indicator. The electric-leakage detection module is configured to convert an AC electric-leakage voltage into a DC electric-leakage voltage
Data Source
AI summary
An electric-electric-leakage detection device includes an electric-leakage detection module, a switch module and an indicator. The electric-leakage detection module is configured for converting an AC electric-leakage voltage into a DC electric-leakage voltage. The switch module is electrically connected to the electric-leakage detection module and configured for being turned on or turned off according to the DC electric-leakage voltage. The indicator is electrically connected to the switch module and configured for outputting an indication signal according to conduction of the switch module.