| 摘要 |
PURPOSE:To use a transistor of a tated low current by rectifying single phase AC, applying it to a 3-phase output inverter and driving a 3-phase motor. CONSTITUTION:A voltage from a signal phase power source PS is applied through a power switch SW to a fan motor FM and a 3-phase output frequency converter CC, the output of which is applied to a 3-phase compressor motor CM. The motor current of the 3-phase motor is small, and accordingly a system can be composed of a transistor of rated low current. The 3-phase motor has large starting torque, and does not require particular starting element. |
