The invention relates to an electric vehicle alternating current charging pile control guide CP circuit which is characterized by comprising a level switching unit and a level amplifying unit, when an input CP oscillation wave signal output by an MCU is at a high level, the level switching unit outputs a high-level voltage signal, and when the input CP oscillation wave signal output by the MCU is at a low level, the level amplifying unit outputs a low-level voltage signal. The level switching unit outputs a low-level voltage signal; and the level amplification unit amplifies the signal output by the level switching unit by N times and then outputs a final CP oscillatory wave signal. Due to the fact that the operational amplifier is adopted for amplifying output, after the control and guide CP circuit of the alternating current power supply equipment of the electric vehicle is implemented, the precision error of CP oscillation waves + Vcc and-Vcc is within 2%, and precision is very high. The rising edge and the falling edge of the waveform of the CP oscillator are steep, conform to the standard specification and have good consistency. The charging pile is tested in real vehicle, interoperability is high, and performance of the charging pile is excellent.
本发明涉及一种电动汽车交流充电桩控制导引CP电路,其特征在于,包括电平切换单元以及电平放大单元,其中:当MCU输出的输入CP振荡波信号为高电平时,电平切换单元输出高电平电压信号,当MCU输出的输入CP振荡波信号为低电平时,电平切换单元输出低电平电压信号;电平放大单元将电平切换单元输出的信号放大N倍后输出最终的CP振荡波信号。由于采用运放放大输出,本发明涉及的一种电动汽车交流供电设备控制导引CP电路实施后,CP振荡波+Vcc、‑Vcc精度误差在2%以内,精度非常高。CP振荡器波形上升沿和下降沿也比较陡,符合标准规范,一致性好。充电桩实车测试,互操作性高,充电桩性能表现优异。
Control and guide CP circuit for alternating current charging pile of electric vehicle
电动汽车交流充电桩控制导引CP电路
2022-03-18
Patent
Electronic Resource
Chinese
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