US 12,244,139 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 Feb. 15, 2024, as Appl. No. 18/442,488.
Application 18/442,488 is a continuation of application No. 17/852,870, filed on Jun. 29, 2022, granted, now 11,936,180.
Prior Publication US 2024/0186788 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
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 that connects the external device to the integrated circuit of the electronic device via one or more receiver lines of the electronic device; and
a second mode that connects 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 receiver lines of the electronic device and the reset line of the controller, the overvoltage protection switch configured to activate the reset line of the controller in response to an overvoltage condition at the one or more receiver lines of the electronic device.