Patent ID: 11916026
Assignee: QUALCOMM INCORPORATED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 26:
27. A circuit protection method, comprising:
biasing a gate of a first transistor and a gate of a second transistor based on a supply voltage on a power bus, wherein the first transistor and the second transistor are coupled in series between the power bus and a ground; and
turning on the first and second transistors using a capacitive voltage divider in response to a voltage transient on the power bus exceeding a trigger threshold voltage, thereby shunting energy from the voltage transient to the ground, wherein the capacitive voltage divider comprises a first capacitor coupled between the gate of the first transistor and the gate of the second transistor, and a second capacitor coupled between the gate of the second transistor and the ground.