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发明公开
CN110703129A 变压器状态监测电路及设备 审中-实审

变压器状态监测电路及设备
摘要：
本申请实施例公开了一种变压器状态监测电路及设备，所述变压器状态监测电路包括：信号转换电路、信号放大电路、电容电路、电压跟随电路和滤波电路，所述信号转换电路的输出端与所述信号放大电路的输入端连接，用于将输入至所述信号转换电路的第一电流信号转换成第一电压信号，所述信号放大信号电路的输出端与所述电容电路的输入端连接，所述电容电路的输出端与所述电压跟随电路的输入端连接，用于将所述第二电压信号转换成第三电压信号，所述第三电压信号不包括直流分量的电压信号，所述电压跟随电路的输出端与所述滤波电路的输入端连接。
摘要（英）：

Embodiments of the application disclose a transformer status monitoring circuit and a device. The transformer status monitoring circuit includes a signal conversion circuit, a signal amplification circuit, a capacitor circuit, a voltage follower circuit, and a filter circuit. An output end of the signal conversion circuit is connected to an input end of the signal amplification circuit, and the signal conversion circuit is configured to convert a first current signal input to the signal conversion circuit into a first voltage signal. An output end of the signal amplification circuit is connected to an input end of the capacitor circuit. An output end of the capacitor circuit is connected to an input end of the voltage follower circuit, and the capacitor circuit is configured to convert a second voltage signal into a third voltage signal. The third voltage signal does not include a voltage signal of a direct current component. An output end of the voltage follower circuit is connected to an input end of the filter circuit.

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