Non Inverting Summing Amplifier Equation. If we want to achieve a positive result like vout va vb vc then we have to use a non inverting operational amplifier to design a summing amplifier. V b non inverting input voltage.
The summing amplifier or the non inverting summing amplifier is an analog processing circuit with the transfer function the summing amplifier formula as some say shown in the following equation. 1 r a r b. A non inverting summing amplifier circuit with three inputs are shown above.
We can apply superposition theory to calculate the v then use standard non inverting feedback gain equation to evaluate the output voltage vout.
Hence vp sum vi n 1 n sum vi. A non inverting summing circuit is shown in the figure below. Effectively the input to non inverting summing amplifier reduces to the average of input signals. Summing amplifier in non inverting configuration.
