| 摘要 |
PURPOSE:To set each conduction system in both two phase directions and both three phase directions selectively by connecting either one of a control circuit for three phase and a control circuit for two phase between a positional detecting-signal input terminal of the motor and a power transistor for drive. CONSTITUTION:The positonal detecting signals of a two phase type motor or a three phase type motor are inputted to the input terminals 66, 67 and 68, 69 of an integrated circuit 60 and the residual positional detecting signals of the three phase type motor to input terminals 70, 71. Said positional detecting signals are inputted to the control circuit 72 for two phase for both two-phase direction type drive through input wiring 74 and to the control circuit 73 for three phase for both three-phase direction type drive through input wiring 76 respectively. Control signals are inputted to each base of the power transistors Q1-Q6 for drive through wiring 75 from the control circuit 72 for two phase and other control signals through wiring 77 from the control circuit 73 for three phase respectively. |
