Patent ID: 11949332
Assignee: CIRRUS LOGIC INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power converter for converting an input voltage at an input of the power converter into an output voltage at an output of the power converter, the power converter comprising:
a plurality of phases including at least a first phase and a second phase, each of the plurality of phases comprising:
a switching node;
a power inductor coupled between the switching node and the output;
a flying capacitor having a first flying capacitor terminal and a second flying capacitor terminal;
a pump capacitor having a first pump capacitor terminal and a second pump capacitor terminal, the second pump capacitor terminal coupled to ground;
a first switch coupled between the input and the first flying capacitor terminal;
a second switch coupled between the first flying capacitor terminal and the switching node;
a third switch coupled between the second flying capacitor terminal and the switching node;
a fourth switch coupled between the second flying capacitor terminal and a ground voltage; and

balancing switches comprising:
a fifth switch coupled between the second capacitor terminal of the first phase and the first capacitor terminal of the second phase;
a sixth switch coupled between the first capacitor terminal of the second phase and the first capacitor terminal of the second phase;
a seventh switch coupled between the first capacitor terminal of the first phase and the first capacitor terminal of the second phase; and
an eighth switch coupled between the second capacitor terminal of the first phase and the second capacitor terminal of the second phase.