Patent ID: 11894767
Assignee: QORVO US, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. The power management circuit of claim 4 wherein the multi-level charge pump comprises:
an input node coupled to a voltage source to receive the battery voltage;
an output node coupled to the LC circuit to output the low-frequency voltage to the LC circuit;
a first switch coupled between the input node and the first intermediate node;
a second switch coupled between the first intermediate node and the output node;
a third switch coupled between the input node and a second intermediate node;
a fourth switch coupled between the second intermediate node and a ground;
a fifth switch coupled between the input node and the output node;
a sixth switch coupled between the reference node and the ground; and
a fly capacitor coupled between the first intermediate node and the second intermediate node.