Explanation of circuits
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The Electric vehicle charger assembly uses the CPLT signal to detect that the Electric vehicle charger cable assembly is connected and charging is possible. It then starts the plug-in charger control system and changes the CPLT signal voltage. The Electric vehicle charger assembly also uses the CPLT signal waveform duty ratio to recognize the rated current of the charging equipment (household power supply + Electric vehicle charger cable assembly or charger), and again changes the CPLT signal voltage to send notice to the charging equipment side (CCID unit) that the vehicle side is ready for charging.