Patent ID: 11955889
Assignee: THE BOEING COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A buck voltage regulator device, comprising:
a first coupled inductor including a first primary winding and one or more auxiliary windings including a first auxiliary winding;
a first high-side switch electrically connected between an electrical energy source and a starting end of the first primary winding;
a first low-side switch electrically connected between the starting end of the first primary winding and a ground node;
a second low-side switch electrically connected between a starting end of the first auxiliary winding and the ground node;
a first output node electrically connected to a terminal end of the first primary winding;
a second output node electrically connected to a terminal end of the first auxiliary winding;
a first output storage capacitor electrically connected to the terminal end of the first primary winding and electrically connected between the first output node and the ground node;
a second output storage capacitor electrically connected to the terminal end of the first auxiliary winding and electrically connected between the second output node and the ground node;
a second coupled inductor including a second primary winding and one or more auxiliary windings including a second auxiliary winding;
a second high-side switch electrically connected between the electrical energy source and a starting end of the second primary winding of the second coupled inductor;
a third low-side switch electrically connected between the starting end of the second primary winding of the second coupled inductor and the ground node;
a fourth low-side switch electrically connected between a starting end of the second auxiliary winding of the second coupled inductor and the ground node;
an output ripple-reducing inductor electrically connected between the terminal end of the first auxiliary winding of the first coupled inductor and the second output node;
an input-side noise filter capacitor electrically connected between the electrical energy source and the ground node; and
an output-side noise filter capacitor electrically connected between the output ripple-reducing inductor and the ground node; and
a controller configured to operate the first high-side switch with a drive signal and further configured to operate the first low-side switch and the second low-side switch with an inverse of the drive signal to adjust an output voltage at the second output node relative to an input voltage at the electrical energy source.