- #1

Poptart

- 5

- 0

I was wondering what the disadvantage of using a

**non-inverting summer**was rather than using an

**inverting summer**. I was told that inverting summers are better, but not why they are.

I ask because I'm making a circuit that performs a center of mass calculation:

__(V1 + V2) - (V3 + V4)__= Vout

(V1 + V2 + V3 + V4)

and the IC that does the division step requires that the denominator is greater than the numerator, so using a non-inverting summer on the denominator seems to make the most sense to me.

Thanks in advance :)