Patent ID: 11867788
Assignee: RENESAS ELECTRONICS AMERICA INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 19:
20. A method of for full cycle error correction of inductor current measurement for switching regulators, the method comprising:
generating a ramp down compensation voltage based at least partially on a valley current sense voltage and an inductor voltage of an inductor at an inductor node;
applying the ramp down compensation voltage to the inductor node;
in accordance with a first determination that the valley current sense voltage is greater than the inductor voltage, decreasing by a control signal a capacitance of a system capacitor, the system capacitor operatively coupled at a first terminal to the inductor and at a second terminal to a reference voltage; and
in accordance with a second determination that the valley current sense voltage is less than the inductor voltage, increasing by the control signal the capacitance of the system capacitor.