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What does variable resistor actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.
Higher tier - variable resistor; Higher tier - variable resistor. Moving the position of the slider on this resistor, changes the length of wire in the circuit which changes the resistance.
See Figure 2 for how this can be done with a positive polarity DAC and just one added resistor: R3. Figure 2 Regulator output programming with a DAC and the KISS 1 network Vout = (Vcmax – Vc)(R1/R2 ) ...
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