| 摘要 |
PURPOSE:To obtain artificial nonlinear type characteristics easily, also by directly providing the artificial circuit of a DC motor and its load by an electronic circuit while extracting quantities proportional to back electromotive force or speed from voltage at both ends of a capacitor. CONSTITUTION:The electrical-mechanical characteristics of the motor provided by an artificial circuit 3 by a resistor Ra, an inductance La and the capacitor C. Load torque corresponding currents ie to armature currents ia can be obtaned by changing the voltage EL of the load torque artificial circuit 3 by a variable resistor 2. When voltage at both ends of the capacitor C is extracted through a buffer means such as a buffer amplifier 4, outputs from the amplifier 4 are in proportioned to counter electromotive force Eb or speed (n). Accordingly, the artificial circuit for the DC motor, which can also artificial nonlinear characteristics such as the interruption of currents easily, cost thereof is low and constitution thereof is simple, can be obtained. |
