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US20050036251 Electrostatic discharge protection for trim-diodes  
An electrostatic discharge protection device connected in parallel with a trim-diode turns on during an electrostatic discharge event and conducts substantially all the current therefrom, yet...
US20130235495 Plug-In Unit Protection  
A plug-in unit that is configured to stacking in an electronic equipment unit is protected during replacement of an adjacent plug-in unit in the electronic equipment unit by providing at least one...
US20140036397 ESD Clamp for Multiple Power Rails  
An Electrostatic Discharge (ESD) clamp includes first power rail, a second power rail separate from the first power rail, and an ESD discharging circuit including a plurality of cascaded MOS...
US20130235496 ESD-ROBUST I/O DRIVER CIRCUITS  
An ESD-robust I/O driver circuit is disclosed. Embodiments include providing a first NMOS transistor having a first source, a first drain, and a first gate; coupling the first source to a ground...
US20130321962 ESD-ROBUST I/O DRIVER CIRCUITS  
An ESD-robust I/O driver circuit is disclosed. Embodiments include providing a first NMOS transistor having a first source, a first drain, and a first gate; coupling the first source is coupled to...
US20120250194 High voltage tolerant SCR clamp with avalanche diod triggering circuit  
In an LVTSCR, an avalanche diode based control circuit controls both the base of the internal PNP of the LVTSCR as well as the gate of the LVTSCR.
US20120081820 ESD POWER CLAMP FOR HIGH-VOLTAGE APPLICATIONS  
An ESD clamp includes a first power supply node; an ESD detection circuit coupled to the first power supply node and configured to detect an ESD event; and a bias circuit coupled to the first...
US20140327992 ARC SUPPRESSION CIRCUIT  
An improved arc suppression circuit is disclosed for a switch having switch comprising a shunt circuit connected across the switch. A trigger circuit senses the voltage across the switch for...
US20120081821 ESD Protection Device for Multi-Voltage System  
An ESD protection device for a multi-voltage system includes a first circuit block, a second circuit block, a first power clamp circuit and a second power clamp circuit. The first and second...
US20150077890 ESD PROTECTION CIRCUIT  
In an ESD protection circuit, the overvoltage detection circuit detects application of an overvoltage to a power supply node. A clamp circuit connects the power supply node to a ground node to...
US20140268441 ACTIVE ESD PROTECTION CIRCUIT  
A high-voltage gate driver circuit configured to drive a high-side power switch and a low-side power switch includes an active dv/dt triggered ESD protection circuit coupled between a protected...
US20120300350 GRADUALLY REDUCING RESISTIVE CLAMP  
A voltage spike protection system minimizes a voltage spike by connecting a resistive clamp to a power source when the voltage spike is detected. The voltage spike detection system disconnects the...
US20140376134 Voltage Protection Circuit  
In an integrated circuit device having an internal circuitry that requires voltage protection (e.g. negative voltage protection), the voltage protection is provided by a FET. In some embodiments,...
US20140268449 CIRCUIT AND METHOD OF ELECTRICALLY DECOUPLING NODES  
A device includes a first power node, a second power node, a first input node, a second input node, a protected circuit, and a switch circuit. The protected circuit is coupled between the first...
US20130265677 DRIVER-BASED DISTRIBUTED MULTI-PATH ESD SCHEME  
A driver-based distributed multi-path ESD scheme is disclosed. Embodiments include providing a plurality of I/O cells, wherein each of the I/O cells includes a first driver having a first source,...
US20110096446 ELECTROSTATIC DISCHARGE CLAMP WITH CONTROLLED HYSTERESIS INCLUDING SELECTABLE TURN ON AND TURN OFF THRESHOLD VOLTAGES  
A electrostatic discharge (ESD) clamp for coupling between first and second nodes for providing ESD protection including a clamp circuit and first and second voltage threshold circuits. The clamp...
US20130250462 ESD protection circuit and ESD protection device thereof  
The ESD protection circuit is electrically connected between a first power rail and a second power rail, and includes an ESD protection device, a switching device electrically connected between...
US20120170160 ESD protection circuit and ESD protection device thereof  
The ESD protection circuit is electrically connected between a first power rail and a second power rail, and includes an ESD protection device, a switching device electrically connected between...
US20130335868 Method and Apparatus to Improve ESD Robustness of Power Clamps  
A power clamp circuit having improved robustness to electrostatic discharge (ESD) events includes a voltage regulation circuit and a current controlled switch. The voltage regulation circuit and...
US20120057260 Power Supply Shunt  
A power supply shunt for an electronic circuit. The power supply shunt includes at least two Field Effect Transistors (FETs), a first of the FETs having its drain coupled to a terminal of an...
US20120154960 ESD PROTECTION CIRCUIT WITH EOS IMMUNITY  
ESD protection circuit with EOS immunity is provided, which includes a first connection circuit, a first EOS control circuit formed by at least a diode, and an ESD clamp respectively coupled...
US20110267723 OVERVOLTAGE PROTECTION CIRCUIT FOR AN INTEGRATED CIRCUIT  
An overvoltage protection circuit may include a reference voltage generator, a trigger circuit, and a clamping device. The reference voltage generator is for providing a reference voltage that is...
US20130182356 ESD Clamp with Novel RC Triggered Circuit  
Some embodiments relate to an area efficient electrostatic discharge (ESD) clamp comprising an RC trigger circuit, having one or more low-voltage, thin-oxide devices, which is configured to...
US20130215541 HIGH VOLTAGE RC-CLAMP FOR ELECTROSTATIC DISCHARGE (ESD) PROTECTION  
In accordance with some embodiments, an electrostatic discharge (ESD) protection circuit for high-voltage power rails includes an RC-triggered clamp having an RC-circuit having a resistor coupled...
US20130100562 ELECTROSTATIC DISCHARGE CLAMP WITH CONTROLLED HYSTERESIS INCLUDING SELECTABLE TURN ON AND TURN OFF THRESHOLD VOLTAGES  
An electrostatic discharge (ESD) clamp for coupling between first and second nodes for providing ESD protection including first and second voltage threshold circuits. The clamp circuit limits...
US20140268451 HIGH HOLDING VOLTAGE CLAMP  
An electrostatic discharge (ESD) protection device with a high holding voltage is disclosed including at least an ESD clamp coupled to a holding voltage tuning circuit. The ESD clamp may be...
US20130235497 ELECTRO-STATIC DISCHARGE CLAMP (ESD) FOR NxVDD POWER RAIL  
A circuit with an electro-static discharge clamp coupled to a first power source and second power source. The electro-static discharge clamp includes an NMOS stack and an electro-static discharge...
US20140355157 Electrostatic Discharge (ESD) Protection Circuit with EOS and Latch-Up Immunity  
An electrostatic discharge (ESD) protection circuit with electrical overstress (EOS) and latch-up immunity has a main ESD circuit, a voltage detection circuit and an electrostatic driving circuit....
US20130077196 ESD Robust Level Shifter  
An inverter type level shifter includes a first power supply voltage and a first ground voltage. A first inverter operates on the first power supply voltage and the first ground voltage to...
US20130286519 ELECTRO-STATIC DISCHARGE POWER SUPPLY CLAMP WITH DISABLEMENT LATCH  
The described devices, systems and methods include an electro-static discharge clamp with a latch to prevent false triggering of an electro-static discharge protection circuit in response to...
US20130286518 ELECTRO-STATIC DISCHARGE POWER SUPPLY CLAMP WITH DISABLEMENT LATCH  
The described devices, systems and methods include an electro-static discharge clamp with a latch to prevent false triggering of an electro-static discharge protection circuit in response to...
US20130222952 ESD PROTECTION WITHOUT LATCH-UP  
A device having an ESD module is disclosed. The ESD module includes an ESD circuit coupled between first and second rails and a control circuit coupled between the rails and to the ESD circuit....
US20110194218 ESD Clamp for High Voltage Operation  
An electrostatic discharge (ESD) clamp includes a first power source configured to provide a first power supply voltage, a power supply node coupled to the first power source and receiving the...
US20120162831 ESD PROTECTION CIRCUIT FOR NEGATIVE-POWERED INTEGRATED CIRCUIT  
For a negative-powered IC, an ESD protection circuit includes a negative voltage clamping circuit configured to provide a path for discharging ESD transient currents associated with different...
US20140063663 POWER-RAIL ELECTRO-STATIC DISCHARGE (ESD) CLAMP CIRCUIT  
A power-rail ESD clamp circuit with a silicon controlled rectifier and a control module is provided. The silicon controlled rectifier is connected to a high voltage level and a low voltage level...
US20120008243 Secondary ESD Circuit  
An integrated circuit device provides electrostatic discharge (ESD) protection, as may be applicable to circuits susceptible to ESD in conjunction with, or prior to, activation of a primary ESD...
US20120162832 ESD PROTECTION CIRCUIT FOR MULTI-POWERED INTEGRATED CIRCUIT  
For a multi-powered IC, an ESD protection circuit includes multiple voltage clamping circuits, each configured to provide a path for discharging an ESD transient current associated with a...
US20120176707 ESD clamp with auto biasing under high injection conditions  
In an SCR ESD protection circuit, the n-type emitter of the SCR is controlled to receive electron current only during an ESD event, thereby defining PNP characteristics during normal operation and...
US20130176651 DIAGNOSABLE REVERSE-VOLTAGE PROTECTION FOR HIGH POWER LOADS  
Systems and methods of diagnosing a condition of a reverse-voltage protection switch in an electric system. The electric system includes a power source, an electric load, and a reverse-voltage...
US20120099228 ESD PROTECTION FOR RF CIRCUITS  
An electrostatic discharge (ESD) circuit, adaptive to a radio frequency (RF) device, which includes a RF circuit coupled between a VDD power rail and a VSS power rail and having a RF I/O pad,...
US20150098158 INTRINSICALLY SAFE VOLTAGE LIMITING SHUNT REGULATOR CIRCUIT  
An intrinsically safe redundant regulator circuit includes a plurality of voltage limiting regulators between a regulated rail and a ground rail. Each of the plurality of voltage limiting...
US20130265676 POWER CLAMP FOR HIGH VOLTAGE INTEGRATED CIRCUITS  
A clamp circuit includes both nmos and pmos devices connected in series between a voltage source terminal, such as an integrated circuit pad, and ground. A trigger unit, connected between the...
US20120049241 CDM-resilient high voltage ESD protection cell  
In a high voltage ESD protection structure with a gate voltage reference and low impedance load, the CDM robustness of the structure is improved by including a gate resistor and a reverse path diode.
US20130342941 SIGE BASED GATE DRIVEN PMOS TRIGGER CIRCUIT  
Some embodiments of the present disclosure relate to a low-power, area efficient ESD protection device that provides ESD protection to an ESD susceptible circuit. The ESD protection device has a...
US20110317319 ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT  
An ESD (Electrostatic Discharge, ESD) protection circuit includes a voltage-divider generating circuit, a decision circuit, and a switching circuit. The voltage-divider generating circuit outputs...
US20130308231 ESD PROTECTION FOR HIGH VOLTAGE APPLICATIONS  
An ESD module includes an ESD circuit coupled between a first source and a second source. A trigger circuit is also included in the ESD module for activating the ESD circuit to provide a low...
US20150022922 POWER SUPPLY CIRCUIT FOR POWER CONTROL CHIPS  
A power supply circuit for power control chips includes a voltage control circuit, a voltage output circuit and a feedback protect circuit. The voltage control circuit receives a first DC voltage,...
US20130182357 Electrostatic Discharge Protection Circuit Having Buffer Stage FET with Thicker Gate Oxide than Common-Source FET  
An active-FET ESD cell (300) for protecting an I/O pad (301) includes a first MOS transistor (310) with a gate oxide (315) of a first thickness and a second MOS transistor (320) with a gate oxide...
US20130235493 PROTECTION CIRCUIT AND POWER MANAGEMENT CIRCUIT AND ELECTRONIC DEVICE  
An electronic device includes a power supply for providing a supply voltage, an interface circuit electrically connected to an external device, a switch circuit and a protection circuit. The...
US20130128401 NETWORK COMMUNICATION DEVICE AND PRINTED CIRCUIT BOARD WITH TRANSIENT ENERGY PROTECTION THEREOF  
A network communication device and printed circuit board are provided with transient energy protection. The network communication device includes a transceiver, a transformer, a connector, a spark...