Test amplifier circuit combining oscillation signal and power driving

The utility model discloses a test amplifier circuit combining oscillation signals and power driving, which comprises an amplifier, an anti-phase sub-circuit respectively connected with a pin 2, a pin 3 and a pin 4 of the amplifier, a normal-phase sub-circuit connected with a pin 1 of the amplifier, a first end of a resistor R2 in the normal-phase sub-circuit is connected with a first end of a resistor R3, and a second end of a resistor R3 in the normal-phase sub-circuit is connected with a second end of a resistor R3. After connection, the power supply is connected with one end of the capacitor C1, and the other end of the capacitor C1 is grounded; the other end of the resistor R2 is connected to a pin 16 of the microcontroller; the other end of the resistor R3 is connected with an anode of a diode D1 and is respectively connected with a pin 1 of an amplifier and a pin 14 of a microcontroller after connection, the pin 1 of the microcontroller is in short circuit with a pin 2, and a pin 6 of the microcontroll