Patent ID: 8879220

Claim:
An electrostatic discharge (ESD) protection circuit, electrically connected to at least two power sources, the power sources comprising a first high power line, a first low power line, a second high power line, and a second low power line, and the ESD protection circuit comprising: an ESD detection circuit, electrically connected to the first high power line, the second high power line and at least one of the first low power line and the second low power line and used to detect an ESD event occurring in the first high power line and another ESD event occurring in the second high power line, and the ESD detection circuit comprising a first trigger unit, and a second trigger unit, electrically connected to the first high power line and the second high power line respectively, wherein the first trigger unit and the second trigger unit are directly electrically connected to each other; and a plurality of power clamp circuits, electrically connected to the power sources, and each power clamp circuit has a trigger node respectively, wherein the trigger nodes are electrically connected to the first trigger unit and the second trigger unit.