心电信号数据采集系统的设计,心电信号放大原理,数据采集 电路-ECG data acquisition system design, principles of ECG signal amplification, data acquisition circuit

交流供电的心电放大器设计，包括共模驱动电路、光电隔离电路以及后级放大电路-AC-powered ECG amplifier design, including the common-mode drive circuit , the optical isolation circuit and post- stage amplifier circuit