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Discharge protection circuit and method for operating a discharge protection circuit

A discharge protection and circuit technology, which is applied in the field of discharge protection circuits, can solve the problems that the electrostatic discharge protection circuit system occupies a large area and damages bandwidth performance, etc.

Pending Publication Date: 2020-05-08
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ESD protection circuitry can take up a large area
This additional circuitry on the source side may also cause additional capacitance on the data lines and may compromise bandwidth performance

Method used

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  • Discharge protection circuit and method for operating a discharge protection circuit
  • Discharge protection circuit and method for operating a discharge protection circuit
  • Discharge protection circuit and method for operating a discharge protection circuit

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Embodiment Construction

[0045] It will be readily appreciated that the components of the embodiments as generally described herein and illustrated in the drawings may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of various embodiments is not intended to limit the scope of the present disclosure, but merely to represent various embodiments, as shown in the accompanying drawings. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0046] The embodiments may be embodied in other specific forms without departing from the spirit or characteristics of the embodiments. The described embodiments should be considered in all respects as illustrative only and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by this detailed description. All changes within the equivalent meaning and range...

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Abstract

Embodiments of a method, a circuit and a system are disclosed. In an embodiment, a discharge protection circuit is disclosed. The discharge protection circuit includes a switch having a capacitive coupling between a gate and a drain of the switch, wherein the capacitive coupling facilitates a capacitively coupled current. The discharge protection circuit further includes a gate network including at least the gate of the switch, a gate control element and a resistor connected to the gate and the gate control element. In addition, the discharge protection circuit includes an electrostatic discharge rail that connects to a diode that is coupled to the gate and the resistor, wherein the capacitive coupling facilitates sinking of at least a part of an electrostatic discharge current via the gate network.

Description

technical field [0001] The invention relates to a discharge protection circuit and a method for operating a discharge protection circuit. Background technique [0002] Electrostatic discharge involves a sudden flow of electricity that may be caused by a buildup of static electricity. The electrostatic discharge protection circuit can be used to shunt the electrostatic discharge current to prevent thermal damage to the electronic device. For example, an electrostatic discharge protection device may be integrated with an electrical device, such as an integrated circuit (IC) chip, to provide a low impedance path that prevents thermal damage to components of the electrical device. The operating characteristics of the ESD protection device (eg, the ESD reaction time for activating the ESD protection device to shunt the ESD current) may affect the performance of the ESD protection device. [0003] Integrated circuits used as interfaces to the 'outside world' often have stringent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/04
CPCH02H9/046H01L27/0251H01L27/0248H01R13/6485
Inventor 赛马克·德尔沙特伯吉多·沃特·威廉·夸克斯彼得·克里斯蒂亚安斯
Owner NXP BV