Self-noise-reducing signal amplification equipment based on lithium battery power supply

The utility model discloses a signal amplification device capable of reducing self-noise based on lithium battery power supply. The system comprises a control part and a signal amplification part, thecontrol part comprises a control module and two lithium batteries, the control module is connected with the two ends of the two lithium batteries through a discharge logic module and a charge logic module, and the discharge logic module is connected with the control module through an electric quantity detection module; the discharge logic module is connected with the signal amplification module through the boosted circuit module; wherein a power supply isolation device is arranged between the discharge logic module and the boost circuit module, the control module is connected with the signalamplification module through the gain circuit module, a signal isolation device is arranged between the control module and the gain circuit module, and the control module is also connected with an amplification multiple acquis