Electronic cigarette charging and discharging circuit, battery assembly and electronic cigarette

A battery assembly of an electronic cigarette, comprising an electronic cigarette charging and discharging circuit having an integrated microphone controller, wherein the electronic cigarette charging and discharging circuit further comprises:

• a charging input interface;
• a charging management circuit having an input terminal connected to a first terminal of the charging input interface and an output terminal connected to a positive electrode or a negative electrode of a battery;
• and
• a charging and discharging two-in-one interface having a first terminal connected to an output terminal of the integrated microphone controller;
• and
• each of a second terminal of the charging input interface, a ground terminal of the integrated microphone controller and a second terminal of the charging and discharging two-in-one interface is connected to the negative electrode of the battery;
• wherein the charging management circuit comprises a charging integrated circuit, a first light emitting diode, a second light emitting diode, a capacitor, a first resistor, a second resistor and a third resistor;
• an anode of the first light emitting diode and an anode of the second light emitting diode are both connected to a VCC terminal of the charging integrated circuit, and the shared connecting terminal functions as the input terminal of the charging management circuit;
• a cathode of the first light emitting diode is connected to a CHRG terminal of the charging integrated circuit via the first resistor, a cathode of the second light emitting diode is connected to an LED terminal of the charging integrated circuit via the second resistor, a PROG terminal of the charging integrated circuit is connected to a first terminal of the third resistor, and each of a second terminal of the third resistor, a GND terminal of the charging integrated circuit and a first terminal of the capacitor is grounded;
• and
• the charging integrated circuit has a BAT terminal connected to a second terminal of the capacitor and functioning as the output terminal of the charging management circuit.