Patent Document ID: 9564799
Application ID: 14261363
Patent Flag: 1

Claim One:
1. A digital power supply controller, comprising: a logic device, having computer executable instructions defined therein for performing a method comprising: receiving a measurement corresponding to a switch voltage associated with a switch device and a measurement of a rectified input voltage, and based on the switch voltage and the rectified input voltage, estimating a resistance and inductance of a boost inductor; estimating a current in the inductance based on the estimated resistance and inductance; determining a control signal for the switch device based on the estimated current; estimating a magnitude of a periodic boost inductor current based on an output voltage ripple; estimating the resistance and the inductance of the boost inductor based on the estimated magnitude of the periodic boost inductor current, wherein the resistance and inductance of the boost inductor are estimated based on integration of the relation v L est = R L est ⁢ i L est + L est ⁢ ⅆ i L est ⅆ t over at least two different time intervals, wherein v L est , R L est , i L est , L est are the estimated boost inductor voltage, the estimated boost inductor resistance, the estimated boost inductor current, and the estimated boost inductor inductance, respectively; and estimating the inductance of the boost inductor based on a difference between the measurement corresponding to the switch voltage associated with the switch device and the measurement of the rectified input voltage.