Patent ID: 11876383
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A wireless power receiving device, comprising:
a wireless charging coil having a first coil terminal and a second coil terminal;
a rectifier having rectifier switches, a first rectifier input coupled to the first coil terminal, a second rectifier input coupled to the second coil terminal, and a rectifier output on which a rectifier output voltage is generated;
a rectifier controller configured to control the rectifier switches;
a capacitor having a first terminal coupled to the first rectifier input and a second terminal coupled to the second rectifier input; and
voltage regulator circuitry configured to:
receive a voltage across the capacitor,
receive the rectifier output voltage, and
override the rectifier controller by activating a subset of the rectifier switches when the voltage across the capacitor is equal to zero.