AUTOMATIC CONTROL UNIT FOR ELECTRONIC APPARATUS

摘要

PURPOSE: To surely automatically control the output signal of an electronic apparatus by providing the microcomputer which calculates the deviation of the output of the electronic apparatus from an optimum value based on the output signal of the electronic apparatus and the preliminarily stored optimum value and outputting it to aθ-axis motor. CONSTITUTION: The optimum value of a multiple rotation type variable resistor 11 of an electronic apparatus 10 whose output should be automatically controlled is preliminarily stored in a microcomputer 60. The microcomputer 60 reads the output signal of the electronic apparatus 10, which a digital voltmeter 50 outputs, and calculates the deviation of the output of the electronic apparatus 10 from the optimum value based on this read output signal and the preliminarily stored optimum value. The microcomputer 60 supplies the deviation from the optimum value as aθaxis rotating signal to aθ-axis motor 31. Theθ-axis motor 31 rotates the variable resistor 11 based on theθaxis rotating signal. Thus, the output signal of the variable resistor 11 is changed to be controlled. Further, the constitution as well as the control is simplified.