Patent Document ID: 10015607
Application ID: 15191981
Patent Flag: 1

Claim One:
1. An apparatus, comprising: a first output node configured to couple to a load; a first digital-to-analog converter (DAC) coupled to the first output node; sense circuitry coupled to the first output node; a reference generator; a second digital-to-analog converter (DAC) coupled to the reference generator; an analog-to-digital converter (ADC) coupled to the sense circuitry and coupled to the reference generator; a temperature sensor configured to measure a temperature; and digital circuitry coupled to the first digital-to-analog converter (DAC) and coupled to the second digital-to-analog converter (DAC) and coupled to the analog-to-digital converter (ADC) and configured to control at least one of the first digital-to-analog converter (DAC) and the second digital-to-analog converter (DAC) to determine an impedance of the load based, at least in part, on the measured temperature and an output of the analog-to-digital converter (ADC).