Electro-static discharge (ESD) power clamp with power up...

Details Electro-static discharge (ESD) power clamp with power up... Electro-static discharge (ESD) power clamp with power up...

2007-07-17

2007-07-17

Leja, Ronald W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

Reexamination Certificate

active

11049900

ABSTRACT:
An ESD power clamp utilizes both a transient triggering method integrated together with a voltage level detection circuit to disable a MOSFET transistor forming the ESD power clamp unless the voltage level on a relevant power supply rail is higher than a predetermined level above the normal power supply voltage. When the voltage level of the power supply rail is higher than the predetermined level (e.g., 10% higher, 25% higher, etc.), then the power surge is presumed to be an ESD pulse, and thus the ESD power clamp is enabled to turn ON and discharge the ESD power surge.

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