Output value scale display of electronic potentiometer module
An electronic potentiometer, output value technology, applied in the direction of resistor, adjustable resistor, measurement value indication, etc., can solve the problems of mechanical potentiometer mechanical wear, low precision, easy damage and so on
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[0026] Below to Figure 5 The implementation method of the scale display is described in detail by taking an example.
[0027] Figure 5 Among them, the BCD code value output from IC1 and IC3 drives the resistance of the resistor network in parallel with the triode array, and at the same time, it is used as the BCD code input of IC2 and IC4. The LED light-emitting diode or LCD liquid crystal display for the ones and tens digits of the display, due to the limited load current of the CMOS integrated circuit, if it is an LED, a high-brightness light-emitting diode should be used, and a current-limiting resistor should be connected in series to make the current less than 1MA.
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