INVERTER DEVICE AND AIR CONDITIONING SYSTEM USING INVERTER DEVICE

摘要

An inverter device which is low in noise and vibration, small in size and weight, and high in reliability, wherein a current sensor for detecting a power supply current is also used for detecting the current of a stator winding to detect the position of a magnet rotor, whereby a sinusoidal drive is enabled without additionally providing two phase current detecting current sensors, and a conventional phase shift circuit/comparison circuit at 120-degree conduction is made unnecessary to reduce the number of constituting components.