| 摘要 |
PURPOSE:To output position data correctly independently of the operation of the operator, by constituting a titled circuit with the 1st circuit outputting a voltage in response to the position of an operating part and the 2nd circuit regulating an output voltage of the 1st circuit to a specified value. CONSTITUTION:The 1st circuit A consists of variable resistors 6 and 8 respectively setting upper and lower limit voltages between a power supply voltage V1 and the ground, and a variable resistor 5 between the resistors 6 and 8 the slider of which is moved according to the movement of the operating part. The 2nd circuit B comprises a comparator 9 inputting an output of the resistor 5, a counter 11, a D/A converter 12 D/A-converting the output of the counter and inputting the output to the comparator, comparison circuits 13 and 14 outputting ''1'' when the output of the counter 11 reaches a value corresponding to the upper and lower limit, output circuits 16 and 17 for values corresponding to the upper and lower limits, an AND circuit 15, an OR circuit 19, and a latch circuit 20. The circuit B outputs upper and lower set voltages from the circuit 20 when the output of the circuit A is an upper limit or more and a lower limit or below and outputs a voltage in response to the position of the resistor 5, when the output of the circuit A is within the upper and lower limit. |
