Wind pendulum motor drive circuit

Shown is the wind swing motor drive circuit
of the Panasonic inverter air conditioner indoor unit . This circuit is a pulse- driven stepper motor . The microprocessor @~@ pins output pulse drive signals. The drive pulses are added to the four windings of the stepper motor through the inverter amplification circuit . +16 V is the voltage of the motor . DC power supply. The rotation of the motor causes the blades to swing to provide even air for the room.