US Patent 11493972 Hardware architecture for USB-C port power

A system including a first Type-C port and a second Type-C port includes a mainboard and a sub-board. The mainboard includes battery terminals for connection to a battery, the first Type-C port, a primary switch-mode charger connected to the battery terminals and connected to the Type-C port, and an embedded controller. The sub-board includes the second Type-C port, and a secondary charging component connected to the second Type-C port and connected to the mainboard via a flexible connector. The embedded controller is configured to control the primary switch-mode charger and the secondary charging component for charging the battery.