| 摘要 |
PURPOSE:To operate a motor in the maximum efficiency and to economize in power, by detecting load torque and feeding the current with the voltage corresponding to the load torque. CONSTITUTION:A load torque detection circuit detects load torque. By the phase control of a TRIAC AO corresponding to the output of the load torque detection circuit, the voltage is given to an induction motor in proportion to torque fluctuations on the load side. On this account, the surplus power is removed and the power can be economized, so that the loss, e.g. heat generation, of a motor can be reduced and the endurability improved. |
