Patent ID: 11909198
Assignee: WITRICITY CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A system for protecting one or more components of a wireless power receiver, the components comprising at least one transistor gate, the system comprising:
a gate driver configured to provide at least one control signal to control switching of the transistor gate such that power is transmitted to a load coupled to the receiver, wherein the gate driver comprises:
a pre-drive circuit configured to:
receive at least one pre-pulse width modulation (PRE-PWM) signal from a power controller; and
transmit the at least one PRE-PWM signal; and

a post-driver circuit configured to:
receive the at least one PRE-PWM signal from the pre-drive circuit; and
transmit at least one post-PWM (POST-PWM) signal to the at least one transistor gate; and

a first controller coupled to the gate driver and configured to generate a protection signal, the protection signal comprising:
(i) a fault signal indicating a fault in one or more components of the receiver;
(ii) a signal indicating that the transistor gate should be latched; and/or
(ii) at least one undervoltage signal indicating that an undervoltage condition exists in a power supply of the gate driver,

wherein, based on the generated protection signal, the gate driver is configured to adjust the provided control signal to latch the transistor gate such that power is not transmitted to the load.