Adaptor Clock Signal Edge Detection for Quick Charging
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Solution Overview
Problem
The existing methods for detecting the time parameters of an adaptor in quick charging technology are inefficient and inaccurate due to the complexity and high number of detecting instructions required, which complicates the process and reduces detection efficiency.
Innovation Solution
A method and system that involves receiving a clock signal from the adaptor, acquiring specific edges of the clock signal, and generating a test result for the time parameters of the adaptor, simplifying the detection process by directly testing the time of the instruction during communication with the adaptor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional oscilloscope detection method is used to detect the time at which the adaptor sends an instruction, then the detection can be performed, but the detecting process becomes complicated and requires a large quantity of detecting instructions
Solution Approach 1:
The patent extracts the essential timing information from the complex communication protocol by identifying and capturing only the critical clock signal edges (first falling edge, first rising edge, second falling edge, third falling edge) that directly indicate instruction transmission time. This extraction approach eliminates the need for numerous detecting instructions while maintaining detection accuracy, directly resolving the contradiction between measurement precision and device complexity.
2Measurement precision
If traditional oscilloscope detection method is used, then the time parameters can be detected, but the detecting efficiency becomes low due to the complicated process and large quantity of instructions
Solution Approach 1:
The patent segments the detection process into four key signal edge capture points (first falling edge, first rising edge, second falling edge, third falling edge) instead of using a large number of detecting instructions. This segmentation approach maintains detection accuracy by focusing on critical timing points while dramatically improving detection efficiency by reducing the instruction count and simplifying the overall detection flow.
3Productivity
If a large quantity of detecting instructions are used to detect the time at which the adaptor sends an instruction, then the detection can be performed, but the detecting process becomes complicated and the detecting accuracy becomes poor
Solution Approach 1:
The patent replaces the mechanical instruction-by-instruction detection approach with a signal-based detection method that directly captures timing information from clock signal edges. This substitution eliminates the need for numerous detecting instructions that degraded accuracy, while maintaining comprehensive detection coverage through direct electrical signal measurement, thus resolving the contradiction between productivity and measurement precision.
Data Source
AI summary
Provided are methods and systems for testing time parameters of an adaptor and systems. The method includes the following. After a testing system is coupled with an adaptor, a clock signal is received from the adaptor, where the clock signal is indicative of the transmission time of the instruction. A first valid interrupt of the clock signal, a square wave corresponding to the first valid interrupt, and a next valid interrupt of the first valid interrupt are acquired. A first falling edge and a first rising edge of the first valid interrupt, a second falling edge of the square wave, and a third falling edge of the next valid interrupt are acquired. A test result time parameters of the adaptor is generated according to the first falling edge, the first rising edge, the second falling edge, and the third falling edge.