ELECTROSTATIC DISCHARGE PROTECTION DEVICE
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United States of America Patent
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Issued Date -
Aug 18, 2016
app pub date -
Feb 17, 2015
filing date -
Feb 17, 2015
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electrostatic discharge protection device that includes a plurality of voltage drop elements, an impedance element, a driving circuit, and a clamping circuit is provided. The voltage drop elements are electrically connected in series between a first line and a node, and the voltage drop elements are configured to define an activating voltage. If a signal from the first line is greater than the activating voltage, the voltage drop elements conduct the first line to the node in response to the signal from the first line. The impedance element is electrically connected between the node and a second line. The driving circuit amplifies a control signal from the node and accordingly generates a driving signal. The clamping circuit determines whether to generate a discharging path between the first line and the second line according to the driving signal.
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