| 摘要 |
PURPOSE: To reduce the number of twisted wires and the number of terminals of a high-harmonic transformer with the power supply circuit of an inverter drive sensorless motor. CONSTITUTION: The power supply of a rotor position detection circuit As2 is obtained from a secondary circuit Ap9 of a high-harmonic transformer T3 for supplying power supply to control circuits Aq4, Aq5, and Aq6 for driving the lower three transistors Q4, Q5, and Q6 of an inversion conversion circuit A2 via a regulator Rgl. |
