Gate Signal Error Processing for Noise-Resilient Power Switching
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Solution Overview
Problem
Existing power supply apparatuses face challenges in maintaining the accuracy of gate signals due to noise generated during the switching of the gate circuit, which can lead to errors in the gate signal, especially near the edge timing.
Innovation Solution
A control apparatus is designed to include a gate signal generation circuit, a transmitter, a receiver, and an error processing circuit. The error processing circuit processes errors in the received gate signal and outputs it to the gate circuit, with a process delay greater than the sampling period but equal to or less than the state duration time, thereby avoiding burst errors near the edge timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the gate circuit switching speed is increased to improve power supply efficiency, then productivity is improved, but noise is generated during switching which degrades gate signal accuracy
Solution Approach 1:
The error processing circuit performs preliminary correction of gate signal errors before the signal is used to control the gate circuit. By anticipating and correcting errors that would be caused by upcoming noise events, the system maintains signal accuracy without sacrificing switching speed or efficiency.
Solution Approach 2:
The system uses feedback from detecting edge timing of gate signals to dynamically adjust error correction timing. The error processing circuit monitors when edges occur and uses this information to determine when noise will be generated, allowing it to correct errors in real-time based on actual switching conditions.
2Reliability
If error correction processing is added to improve gate signal accuracy, then reliability is improved, but process delay increases which may affect switching response time
Solution Approach 1:
Error correction is performed in advance before the gate signal reaches the gate circuit, rather than adding delay after the fact. The correction process uses the known timing of noise events to proactively fix errors before they affect switching operation, eliminating the need for conservative delay margins.
Solution Approach 2:
The system dynamically adjusts the timing parameters of error correction based on the detected edge timing of gate signals. By changing the temporal parameters of when correction occurs relative to when noise is generated, the system optimizes the balance between correction effectiveness and switching response time.
Data Source
AI summary
According to one embodiment, a control apparatus includes a gate signal generation circuit, a transmitter, a receiver, and an error processing circuit. The gate signal generation circuit is configured to generate a gate signal to switch a state of a gate circuit. The transmitter is configured to transmit the generated gate signal. The receiver is configured to receive the transmitted gate signal. The error processing circuit is configured to process an error in the received gate signal and to output the gate signal to the gate circuit. A process delay by the error processing circuit is greater than a sampling period of the gate signal switching the state of the gate circuit and is equal to or less than a time to retain the state of the gate circuit.