| 摘要 |
PURPOSE:To automatically correct a reference value by defining the level of the analog data read for each application of the power supply of a microprocessor as the reference value and fetching the level difference of data at and after the next time. CONSTITUTION:The power supply of each processing circuit is applied for initialization of a microprocessor 4A. The analog data obtained in an initial mode is read through an amplifier 2 and the level of this data is stored in a memory as the reference value for processing of the subsequent programs. Then the levels of the analog data supplied at and after the next time are read into the processor 4A through the amplifier 2. The processor 4A obtains the differences between those analog data levels with the reference value to define said differences as the correct input data at and after the next time. Based on this correct data, the speed and the torque of a motor are controlled by a series of programs.
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