INTERNAL AND EXTERNAL DEVICES CONTROL IN WIRELESS POWER SYSTEMS

Systems and methods for wireless power transmission are described. A wireless power transmitter can include a coil, an analog front end (AFE) and a controller. The AFE can include a set of internal metal-oxide-semiconductor field-effect transistors (MOSFETs). The controller can be configured to generate a set of pulse width modulation (PWM) signals. The controller can be further configured to send the set of PWM signals to the AFE. At least one of the AFE and the controller can be configured to perform dead time optimization by using the PWM signals to control at least one of the set of internal MOSFETs and a set of external MOSFETs connected between the AFE and the coil. The coil can be driven by the set of internal MOSFETs and the set of external MOSFETs.