Patent ID: 7230483

Claim:
A negative feedback system with an error compensation scheme, comprising: a first summation module for receiving a system input and outputting a first summation output; a first forward module coupled to the first summation module for receiving the first summation output and outputting a first forward output; a feedback module coupled to the first summation module for receivivg the first forward output and outputting a feedback output to the first summation module, wherein the first summation output equals the system input minus the feedback output; and an error compensation module, having a compensation gain, coupled to the first summation module for receiving the first summation output and outputting an error compensation output, wherein the compensation gain is adjusted to provide the error compensation output with a predetermined value, such that an output error of a system output is substantially eliminated by combining the error compensation output with the first forward output, and the compensation gain is determined by at least one predetermined passive device constructing the feedback module.