US 2013/0155554 A1 · ELECTROSTATIC DISCHARGE PROTECTION DEVICE

Abstract

An electrostatic discharge protection device is provided. The electrostatic discharge protection device includes a clamp unit and a control circuit. The clamp unit provides a discharging path from a first power line to a first ground line. The control circuit receives a first power voltage from the first power line and a second power voltage from a second power line. Wherein, when the first power voltage and the second power voltage are applied, the control circuit generates an isolation signal to disconnect the discharging path. When the first power voltage and the second power voltage are not applied, the control circuit generates a trigger signal according to an electrostatic signal from the first power line to turn on the discharging path.

Claims16

Dependent claims

An electrostatic discharge protection device, comprising:

a clamp unit, providing a discharging path from a first power line to a first ground line;
and
a control circuit, receiving a first power voltage from the first power line and a second power voltage from a second power line,
wherein when the first power voltage and the second power voltage are applied, the control circuit generates an isolation signal to disconnect the discharging path, and when the first power voltage and the second power voltage are not applied, the control circuit generates a trigger signal according to an electrostatic signal from the first power line to turn on the discharging path.

1 more element

An electrostatic discharge protection device, comprising:

a control circuit, electrically connected to a first power line, a second power line, and a first ground line;
and
a clamp unit, providing a discharging path from the first power line to the first ground line,
wherein when a first power voltage and a second power voltage are respectively applied to the first power line and the second power line, the control circuit generates an isolation signal to disconnect the discharging path, and when the first voltage and the second voltage are not provided, the control unit generates a trigger signal according to an electrostatic signal from the first power line to turn on the discharging path.

1 more element

Dependencies are inferred from the claim text.

Electrostatic discharge protection device

Life of this patent

Electrostatic discharge protection device

Life of this patent

Abstract

Claims16