Patent ID: 11876488
Assignee: QORVO US, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus comprising:
a battery terminal providing a battery voltage;
a charge pump coupled between the battery terminal and an interior node, and configured to provide an interior voltage at the interior node based on the battery voltage, wherein the interior voltage toggles between the battery voltage and two times the battery voltage;
a power inductor coupled between the interior node and a power supply terminal that provides a power voltage to a radio frequency (RF) transceiver, wherein:
the charge pump includes a flying capacitor, a first switch, a second switch, and a third switch;
the first switch is coupled between the battery terminal and the interior node, such that the interior node is connected to the battery terminal when the first switch is closed;
the second switch is coupled between the battery terminal and a connecting node, such that the connecting node is connected to the battery terminal when the second switch is closed;
the third switch is coupled between the connecting node and ground, such that the connecting node is connected to ground when the third switch is closed; and
a first terminal of the flying capacitor is directly coupled to the interior node without any switch in between, and a second terminal of the flying capacitor is directly coupled to the connecting node of the second switch and the third switch; and

a pulse-width modulation (PWM) controller, wherein:
the PWM controller is configured to receive a target power voltage, which is a target power level requested for the RF transceiver, and the power voltage at the power supply terminal as feedback; and
the PWM controller is configured to control opening and closing of the first switch, the second switch, and the third switch in the charge pump.