Isolation Circuit for RF Beauty Device 1000 V Withstand
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Solution Overview
Problem
Radio frequency beauty devices fail to meet the high-voltage withstand test requirement of 1000 Volt, compromising safety and functionality.
Innovation Solution
Incorporation of an isolation circuit and a working circuit that includes a transformer, relay, and optocouplers to ensure voltage withstand and safe transmission of driving signals, enhancing safety and operational reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio frequency beauty devices are designed without isolation circuit, then device complexity is reduced, but voltage withstand performance fails to meet 1000 Volt safety standard
Solution Approach 1:
An isolation circuit is introduced as an intermediary component between the high-voltage test input and the working circuit. This isolation circuit includes isolation components (such as optocouplers or transformers) that mediate the electrical connection, allowing the device to withstand 1000 Volt high-voltage tests while protecting the working circuit. The isolation circuit acts as a buffer that prevents direct voltage transmission, thus resolving the contradiction between safety requirements and circuit simplicity.
2Reliability
If isolation circuit is added to meet voltage withstand test, then safety is enhanced, but signal transmission capability must be maintained
Solution Approach 1:
The isolation circuit replaces direct electrical connection with optical or magnetic field-based signal transmission. Optocouplers use light signals to transmit driving signals across the isolation barrier, while transformers use magnetic coupling. This substitution allows safe isolation from high voltage while maintaining effective signal transmission, as optical and magnetic fields can carry information without direct electrical contact, thus resolving the contradiction between safety enhancement and signal transmission.
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 solution enables the beauty device to withstand high test voltages, ensuring safety and normal operation while maintaining effective signal transmission.
Implementation Method 1
an isolation circuit, a first terminal of the isolation circuit being configured to access a test voltage or output a driving signal; and a working circuit, the working circuit being electrically connected to a second terminal of the isolation circuit, and configured to output the driving signal to the isolation circuit
Implementation Method 2
Incorporation of an isolation circuit that includes a transformer, relay, and optocouplers to ensure electrical isolation and voltage withstand
Data Source
AI summary
A beauty device including an isolation circuit and a working circuit is provided. A first terminal of the isolation circuit is configured to access a test voltage or output a driving signal, and a second terminal of the isolation circuit is electrically connected to the working circuit. The working circuit is configured to output the driving signal to the isolation circuit.