Plug Status Detection Circuit for Multi-Standard EV Charging

The patent designs a universal plug status detection circuit that can detect plug status for GB, EU, and US charging standards using the same circuit architecture. The circuit uses a detection module with adjustable parameters and a processing module that can identify different standards and switch detection strategies accordingly, eliminating the need for separate detection circuits for each standard.

The patent implements dynamic parameter adjustment in the detection circuit. The processing module dynamically switches between different detection strategies based on the identified charging standard. The circuit can adapt its detection parameters and methods in real-time depending on which standard is detected, making a single circuit flexible enough to handle multiple standards.

The patent employs a standard identification mechanism that first determines which charging standard is connected before initiating plug status detection. This preliminary identification allows the processing module to select the appropriate detection strategy in advance, ensuring accurate detection while simplifying the overall system architecture by avoiding the need for parallel detection paths for all standards.

The processing module acts as an intermediary between the detection module and the standard-specific detection strategies. It receives raw detection signals, identifies the charging standard, selects the appropriate detection path, and coordinates the detection process. This intermediary role simplifies the system by centralizing the decision-making logic rather than requiring complex configuration of multiple independent detection paths.