| 摘要 |
PURPOSE:To obtain the smooth rotation of a transistor motor by regulating the output level of a position sensor in response to the deviation output between an addition signal of the deviation between the amplified signal of a position detection signal and a reference value and a control signal, thereby suppressing the torque ripple of the motor. CONSTITUTION:The output voltages VU, VV of linear amplifiers 101, 102 which inputs position detection signals from position detecting Hall elements alpha, beta are respectively supplied to armature coils 111, 112 and inputted to a positive voltage adder 202 and a negative voltage adder 203. The adder 202 adds the voltages VU, VV and the positive component of the difference from the first reference value from an addition setter 205, and the adder 203 adds the voltages VU, VV and the negative component of the difference of the second reference value from the setter 205. A positive and negative adder 206 adds the output of the adder 205, the output of the adder 203, and the output of the adder 202 through a code inverter 204, and the added output is compared by a deviation amplifier 208 with the control signal from a signal converter 207. The voltage setter 201 for regulating the output level of the elements alpha, beta is controlled in response to the deviation output from the amplifier 208. |
