能实现任意系数求和的运算电路

The Calculationg Operational Amplifier That Can Be Used in the Addition of Arbitrary Constants

求和运算电路输入端电阻平衡和实现所要求的运算关系,往往不能同时满足要求,本文给出的电路可以做到这一点.

There is a nonsynchronous problem between the resistance-balance of the input of the calculating operational amplifier and the calculation defined by the balance's making. The calculating operational amplifier described in my article can solve the problem.