Patent ID: 8284860
Filing Date: 2012-10-09
Classification: H03F,H04B

Abstract:
1. An error processing system for determining an error signal based on an input signal and an analog output signal, the error processing system comprising: a digital-to-analog converter having a first number of bits of resolution configured to convert a digital reference signal having the first number of bits to an analog reference signal; an analog summing element coupled to the digital-to-analog converter, the analog summing element being configured to produce an analog error signal based upon a difference between the analog reference signal and the analog output signal; a variable gain amplifier coupled to the analog summing element, the variable gain amplifier being configured to amplify the analog error signal by a gain; an analog-to-digital converter coupled to the variable gain amplifier, the analog-to-digital converter having a second number of bits of resolution to convert the analog error signal into a digital error value having the second number of bits, wherein the second number of bits is less than the first number of bits; and a module coupled to the digital-to-analog converter and the analog-to-digital converter, wherein the module is configured to: