US 11,936,180 B2
Overvoltage protection for data communication path
Yao Ding, San Jose, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Jun. 29, 2022, as Appl. No. 17/852,870.
Prior Publication US 2024/0006879 A1, Jan. 4, 2024
Int. Cl. H02H 9/04 (2006.01)
CPC H02H 9/046 (2013.01) 20 Claims
OG exemplary drawing
 
1. A circuit for controlling an interface between an integrated circuit of an electronic device and an external device, the circuit comprising:
(a) an interface control switch including a controller for controlling a mode of the interface between each of:
a first mode for data communication that connects the external device to the integrated circuit of the electronic device via one or more communication lines of the electronic device; and
a second mode for power transmission that connects a power source of the external device to a battery of the electronic device,
wherein the controller includes a reset line for resetting the interface control switch; and
(b) an overvoltage protection switch connected between the one or more communication lines of the electronic device and the reset line of the controller, and configured to activate the reset line of the controller in response to an overvoltage condition at the one or more communication lines of the electronic device.