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

Claim 7:
8. A switching voltage converter, comprising:
a first switching device and a second switching device, the first switching device and the second switching device operable to switch a first voltage at a first voltage value to generate a second voltage at a second voltage value;
a modulator configured generate a duty cycle for the first switching device and the second switching device; and
a current detection device configured to receive 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 signal to control a duty cycle of the first switching device based on the differential signal generated by the load stage.