Noninverting Scaling Operation Circuit with Random Scaling Coefficient
Ren Jun-yuan · Modern Electronics Technique · 2011
A noninverting input scaling circuit with random scaling coefficient is given in this paper.The relationships of scaling coefficient with balance resistor and feedback resistor are analyzed.The purpose of paper is to explore the variation of composition forms of in-phase scaling operation circuit when the scaling coefficient is arbitrary.It's concluded that when the resistance is equilibrium in the input port and input signal scaling coefficients are greater than 1,equal to 1 and less than 1,noninverting input scaling operation circuit can be simplified.The innovation of this method is that the balance condition of input resistance in operational circuits is converted to the scaling coefficients so that the form of simplified circuit can be directly determined.The application scope of noninverting input scaling operation circuits is extended.