Cypress Semiconductor Corporation

Palaniappan Subbiah

Kailas Iyer

Debraj Bhattacharjee

Kailas Narayana Iyer

Nicholaus Smith

Anshul Gulati

Subramanyam Sankaran

Jegannathan Ramanujam

Neel Karkhanis

A Universal Serial Bus (USB)-Power Delivery (PD) integrated circuit (IC) controller is described. The controller includes: a first USB port configured for coupling the USB-PD IC controller to a USB power adaptor; a second port configured for coupling the USB-PD IC controller to a wireless charging station; and logic configured to control a level of a voltage output by the USB power adaptor and to control an output power level of the wireless charging station, wherein an input voltage of the wireless charging station corresponds to the voltage output by the USB power adaptor or is derived from the voltage output by the USB power adaptor. The IC controls both USB-PD and wireless power simultaneously as a system to transmit power and may limit the output power to prevent overload conditions. A corresponding wireless charging system and method of operating the wireless charging system are also described.

USB power delivery integrated circuit controller with wireless charging station control capability

Technology to dynamically share system power among charging ports of a multiport power delivery (PD) system is described. In one embodiment, a multiport PD system includes a master controller associated with a master port, and one or more slave controllers associated with one or more slave ports. The master controller determines a port connection status of a set of multiple ports. The port connection status indicates that multiple devices are connected. The master controller determines a power requirement of each of the devices. The master controller dynamically allocates a system power between each of the ports, independent of a connection sequence of the devices.

Dynamic sharing of power among USB type-c power delivery (USB-C/PD) ports

Growing community of inventors

Santa Clara, CA, United States of America

Palaniappan Subbiah