Coding Circuit for Automated AC Voltage Amplitude Transmission
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Solution Overview
Problem
In modern electrical environments, manually entering power supply information for electrical consumers is prone to errors, especially when consumers are behind circuitry or galvanic isolation, making it difficult for central management devices to accurately determine the real voltage supply.
Innovation Solution
A coding circuit and decoding circuit system that converts AC voltage amplitude information into a pulsating DC signal, using threshold rendering means and signaling mechanisms to generate pulses that carry voltage amplitude information, allowing for automated and accurate communication of power supply details across system boundaries, including galvanic separations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual input of power supply information is used, then installation flexibility is maintained, but error rate increases and automation is reduced
Solution Approach 1:
The consumer device automatically measures its own supply voltage amplitude and encodes this information using the rectifying circuit and signaling means. The device serves itself by generating the voltage information signal without external intervention, eliminating manual input errors while maintaining high reliability through direct measurement at the point of consumption.
Solution Approach 2:
The system implements feedback by measuring the actual supply voltage at the consumer device and automatically transmitting this information back to the central management device. This closed-loop approach ensures that the central controller receives accurate, real-time voltage information directly from the source, resolving the contradiction between automation and reliability.
2Object-affected harmful factors
If galvanic isolation or inverters are used, then electrical safety and flexibility are improved, but voltage information transmission capability deteriorates
Solution Approach 1:
The patent introduces an intermediary measurement and encoding system that bridges the galvanic isolation barrier. The consumer device measures voltage, encodes it into timing-based signals using the rectifying circuit and signaling means, and transmits this encoded information through the isolated boundary. This intermediary approach allows voltage information to cross the galvanic isolation barrier without compromising electrical safety, resolving the contradiction between isolation and information transmission.
3Adaptability or versatility
If standard power supplies are used, then device compatibility is improved, but adaptability to non-standard voltages deteriorates
Solution Approach 1:
The system changes the parameter being measured from binary (standard/non-standard) to continuous (actual voltage amplitude). By measuring the precise voltage amplitude and encoding it in the timing characteristics of the output signal, the system automatically adapts to any voltage level without requiring pre-programmed knowledge of standard voltages. This parameter transformation approach enables universal adaptability while keeping the device structure relatively simple.
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
Enables accurate and automated transmission of AC voltage amplitude information, reducing manual error and ensuring that central management devices can determine the power supply type even when consumers are insulated, thus improving system management and reliability.
Implementation Method 1
a rectifying circuit (11) configured to output a pulsating DC voltage
Data Source
Figure 1
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Figure 2b
AI summary
A coding circuit (10) for coding an AC voltage amplitude comprises a rectifying circuit (11) configured to output a pulsating DC voltage (U5) and signalling means (12) for outputting a signal representing a timing value of said pulsating DC voltage.