Electronic Circuit Phase Shift Compensation via Dynamic Clock Delay
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Solution Overview
Problem
Electronic circuits that transmit analog signals through isolation using electromagnetic coupling often suffer from phase shift, leading to reduced amplitude and signal-to-noise ratio of the restored signal.
Innovation Solution
An electronic circuit that includes a clock generator, delay element, electromagnetic couplers, and frequency converters, where the phase delay of the clock signal is determined based on the amplitude of the restored signal to compensate for phase shifts during electromagnetic coupling transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic coupling is used to transmit analog signals through isolation, then signal transmission isolation is achieved, but phase shift occurs reducing amplitude and signal-to-noise ratio
Solution Approach 1:
The patent changes the frequency parameter of the clock signal dynamically. By adjusting the clock frequency based on detected phase shift amounts, the system compensates for phase errors introduced during electromagnetic coupling transmission, thereby improving signal amplitude and signal-to-noise ratio while maintaining isolation
Solution Approach 2:
The patent implements a feedback mechanism where the phase shift amount is detected from the transmitted signal, and this detected information is used to adjust the clock frequency. This closed-loop feedback allows the system to automatically compensate for phase shifts and optimize signal quality
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
This approach reduces the impact of phase shifts and improves the amplitude and signal-to-noise ratio of the restored signal by dynamically adjusting the phase delay, enhancing the accuracy of signal transmission.
Implementation Method 1
transmits the clock signal by electromagnetic coupling
Implementation Method 2
converts the input signal to a high-frequency signal by using the clock signal transmitted by the electromagnetic coupler
Implementation Method 3
converts the high-frequency signal by using the clock signal, to the signal with the frequency equivalent to the frequency of the input signal
Data Source
AI summary
An electronic circuit according to an embodiment includes a clock generator, a delay element, a first electromagnetic coupler, a first frequency converter, a second electromagnetic coupler, a second frequency converter, a controller and an output device. The clock generator is configured to generate a first clock signal. The delay element is configured to output a second clock signal which has a phase delayed with respect to the first clock signal. The first electromagnetic coupler is configured to transmit one of the first and second clock signals by electromagnetic coupling. The first frequency converter is driven by the one of the first and second clock signals transmitted from the first electromagnetic coupler and is configured to convert a first input signal to a first signal with a first frequency corresponding to the one of the first and second clock signals.