Patent ID: 9548749
Date: 2017-01-17
CPC Classifications: H03L

Claim:
1. Operating parameter circuitry, comprising: control loop circuitry operating from a first power supply to provide an operating parameter signal to functional circuitry operating from a second power supply separate from the first power supply, the control loop circuitry comprising generator circuitry to generate the operating parameter signal based on an input signal, the control loop circuitry comprising loop filter circuitry to generate the input signal in dependence on the operating parameter signal generated by the generator circuitry; replica generator circuitry operating from the second power supply to generate a further operating parameter signal based on the input signal; and adjustment circuitry to perform a comparison on the operating parameter signal and the further operating parameter signal and to cause an adjusted input signal to be produced in dependence on a result of the comparison, wherein the adjusted input signal is received by the generator circuitry.