Patent ID: 11949334
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. An apparatus, comprising:
a coupled inductor power converter comprising:
a first switching circuit configured to source current to a first switch node that is coupled, via a first inductor, to a regulated power supply node;
a second switching circuit configured to source current to a second switch node that is coupled, via a second inductor, to the regulated power supply node, wherein the first and second inductors share a magnetic core;
a first filter circuit configured to filter a voltage level of a first terminal of the first inductor to generate a first filtered signal;
a second filter circuit configured to filter a voltage level of a second terminal of the first inductor to generate a second filtered signal;
a third filter circuit configured to filter a voltage level of a first terminal of the second inductor to generate a third filtered signal;
a fourth filter circuit configured to filter a voltage level of a second terminal of the second inductor to generate a fourth filtered signal;
a first capacitor coupled between the first and third filter circuits;
a second capacitor coupled between the second and fourth filter circuits; and
a control circuit configured to adjust operation of the first and second switching circuits using a voltage level of the regulated power supply node, and the first, second, third, and fourth filtered signals.