| 摘要 |
PURPOSE:To form a controlling device for a highly efficient commutatorless motor without necessity of a speed detector by controlling the prescribed gamma constantly by using a synchronizing signal from a distributor without producing an actual speed signal. CONSTITUTION:A position signal and a inversion signal are inputted to a distributor 5 to obtain a synchronizing signal A for inverting a power inverter 3, and a logic product signal group D is obtained in alternate combination with two sets of signals from the distributor 5 along with the operation. The signal A is converted through an F/V converter 6, and a triangular wave generator 7 into a triangular signal B, and a signal C is obtained by comparing it with a load current proportional DC level from a voltage level regulator 10 by a comparator 11. A gate signal group is obtained from a gate logic circuit 12 which receives as an input the signal C and the signal group D, and is supplied through a gate amplifier 13 to a power inverter 3. |
