Operation Voltage Testing Circuit for Photoelectric Conversion Units
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Solution Overview
Problem
Existing technologies face challenges in effectively and rapidly determining the operation voltage of photoelectric conversion elements, such as avalanche photodiodes, which is crucial for their optimal functioning in various applications like fiber-optic communication.
Innovation Solution
An operation voltage testing circuit comprising a voltage generating circuit, a current-to-voltage conversion circuit, and a processing circuit that generates and adjusts voltage signals to determine the operation voltage of photoelectric conversion units by selectively adjusting current signals based on threshold values, allowing for rapid and accurate voltage determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional testing methods are used to determine operation voltage of photoelectric conversion elements, then the testing process can be completed, but the determination is slow and inefficient
Solution Approach 1:
The patent applies preliminary action by pre-establishing a voltage signal generation mechanism that can rapidly provide test voltages without requiring manual adjustment or waiting. The voltage generating circuit is prepared in advance to output multiple voltage signals, enabling immediate testing when needed, thus resolving the contradiction between completing the testing process and reducing determination time.
Solution Approach 2:
The patent implements feedback through the processing circuit that receives the output current signal from the photoelectric conversion element and automatically adjusts the voltage signal based on whether the current meets the threshold condition. This closed-loop feedback system enables rapid iterative testing and determination of operation voltage, significantly improving testing speed while minimizing determination time.
2Reliability
If the operation voltage is not accurately determined, then the photoelectric conversion element can be used, but its performance and efficiency are not optimized
Solution Approach 1:
The patent replaces manual voltage adjustment and observation methods with an automated electronic system. The voltage generating circuit electronically produces precise voltage signals, and the processing circuit automatically compares current signals against thresholds and determines operation voltage through electronic processing rather than mechanical adjustment, thereby achieving both high measurement precision and reliable performance optimization.
Solution Approach 2:
The patent utilizes parameter changes by systematically varying the voltage signal parameters (voltage levels) generated by the voltage generating circuit. By changing voltage parameters in a controlled manner and observing the corresponding current signal responses, the system accurately determines the operation voltage threshold, ensuring both measurement precision and reliable performance optimization of the photoelectric conversion element.
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 the rapid and effective determination of the operation voltage of photoelectric conversion units, ensuring optimal performance and efficiency in applications like fiber-optic communication.
Implementation Method 1
a photoelectric conversion unit generates a second current signal corresponding to the first voltage signal
Data Source
AI summary
An operation voltage testing circuit includes a voltage generating circuit, a current-to-voltage conversion circuit, and a processing circuit. The voltage generating circuit is configured to generate a first voltage signal according to a first current signal, such that a photoelectric conversion unit generates a second current signal corresponding to the first voltage signal. The current-to-voltage conversion circuit is configured to generate a second voltage signal corresponding to the second current signal. The processing circuit is configured to receive the second voltage signal and to selectively adjust and output the first current signal according to the second voltage signal and a threshold value, such that the voltage generating circuit selectively adjusts the first voltage signal according to the first current signal.