Patent ID: 11870348
Assignee: EMPOWER SEMICONDUCTOR, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 14:
15. A method for controlling peak inductor current for a switching voltage converter, the method comprising:
operating a first switching device and a second switching device to switch a first voltage at a first voltage value to generate a second voltage at a second voltage value;
detecting, by a current detection device, the first voltage signal from a first terminal of the first switching device and the second voltage signal from a second terminal of the first switching device, the current detection device including:
an input stage configured to receive the first voltage signal and the second voltage signal and generate a first voltage based on the first voltage signal and generate a second voltage based on the second voltage signal;
an amplification stage configured to generate a first output current based on the first voltage and generate a second output current based on the second voltage;
a bias stage configured to generate a bias voltage for the amplification stage based on the first voltage and the second voltage;
a load stage configured to output a differential signal based on a comparison of the first output current and the second output current, wherein the differential signal is proportional to a current through the first switching device; and
an output stage configured to output a control signal; and

receiving, by a modulator, the control signal to control a duty cycle of the first switching device based on the differential signal generated by the load stage.