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6111737 |
Internal voltage protection circuit
An internal circuitry protection scheme which protects on-IC circuitry when an external regulator voltage pin is shorted to a higher voltage. The circuit prevents damage to the on-die circuitry...
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6108184 |
Surface mountable electrical device comprising a voltage variable material
The surface mountable electrical device provides utilizes polymer composite materials to protect electronic components against electrical overstress transients. The device includes a first...
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6108181 |
Electrostatic discharge (ESD) circuit
An electrostatic discharge (ESD) discharge circuit provides robust protection to an integrated circuit (13). In one embodiment, a resistive element (71) ensures that current shunting bipolar...
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6104589 |
Method of protecting an integrated circuit, method of operating integrated circuitry, and method of operating cascode circuitry
The present invention includes integrated circuitry, an interface circuit of an integrated circuit device, cascode circuitry, method of protecting an integrated circuit, method of operating...
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6104588 |
Low noise electrostatic discharge protection circuit for mixed signal CMOS integrated circuits
An electrostatic discharge (ESD) protection circuit includes circuitry for providing protection against ESD events which occur either within an ESD pad ring (intra-ring) or between different ESD...
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6104584 |
Voltage feedback inrush current limit circuit having increased tolerance for component value variation
The present invention provides a protection circuit for, and method of, sensing a transient condition and limiting a current, and a power supply having a filter incorporating the protection circuit...
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6104582 |
Storm alert automatic system power-down
Apparatus and processes to automatically power-down a computer system upon determination of the presence, imminence, or forecast of severe weather in the local area. A computer system receives data...
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6101080 |
EMP-charge eliminator
The invention concerns an de-coupled EMP-charge eliminator device in a co-axial cable, with charge eliminator component (28) in electric contact with conductor (24) leading to the internal...
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6101079 |
Current and transient voltage protector
A current and transient voltage protector. The protector module for a wiring block having at least one wiring strip includes an insulative housing having opposed ends, at least four electrically...
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6101078 |
Semiconductor device with protection circuit
A lead on chip (LOC) semiconductor device or a chip on lead (COL) semiconductor device with a protection circuit. Non-connection pins are made shorter than connection pins to reduce the inductance...
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6101077 |
Electrostatic protection circuit of a semiconductor device
An electrostatic protection circuit of a semiconductor device comprises a first MOS transistor of specific conductive type and a second MOS transistor of the specific conductive type. In the first...
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6097581 |
Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package
The present invention relates to a passive electronic component architecture employed in conjunction with various dielectric and combinations of dielectric materials to provide a differential and...
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6094332 |
Protection circuit for discharging large amount of static charge current through field effect transistors different in break-down voltage
A protection circuit has a series combination of a p-channel enhancement type field effect transistor, a first node and a first resistor connected between a high voltage line and a low voltage line...
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6091595 |
Electrostatic discharge (ESD) protection for NMOS pull up transistors of a 5.0 volt compatible output buffer using 2.5 volt process transistors
Electrostatic discharge (ESD) protection is provided for NMOS pull up transistors 700A-H and 702A-H of a 5.0 volt compatible output buffer using 2.5 volt process transistors. The ESD protection...
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6091594 |
Protection circuits and methods of protecting a semiconductor device
Protection circuits and methods of protecting a semiconductor device are provided. According to one aspect, the present invention provides a protection circuit adapted to be coupled to a ground...
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6091593 |
Early trigger of ESD protection device by a negative voltage pump circuit
A transient voltage pump is provided to generate a negative voltage pulse for triggering turn-on of an ESD protection device. As VDD-to-VSS voltage increases rapidly in the initial ESD event, the...
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6091592 |
Protective circuit and electric circuit using the protective circuit
A protective circuit for protecting a circuit from a destructive voltage or current, comprising a MIS transistor, and at least one resistor connected in series with the MIS transistor for limiting...
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6088210 |
Protective device for electromagnets
A solid state device protects large industrial electromagnets from the effects of dissipating stored magnetic energy when the supply voltage to the electromagnet is removed (for example, by...
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6088209 |
Voltage spike suppressor
A voltage spike suppressor for polyphase systems including those with alternatively connectable polyphase sources, the suppressor having a diode bridge network connected to couple overvoltage...
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6084760 |
Device for driving self arc-extinguishing type power element
A circuit for driving a self-arc-extinguishing type power element 1 such as an IGBT, includes a signal supply circuit 7 for supplying an ON/OFF signal to the power element 1, an insulation circuit...
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6084759 |
Arrangement for protection against electrostatic discharge in electronic apparatuses
For protection against electrostatic discharge in electronic apparatuses, a circuit or a component having a connected signal conductor and a discharge conductor connected thereto, is provided with...
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6081412 |
Gate oxide breakdown protection circuit for deep submicron processes
An output driver prevents gate oxide breakdown and reverse charge leakage from a bus to the internal power supply. When the voltage on the bus exceeds the internal supply voltage or when the driver...
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6078487 |
Electro-static discharge protection device having a modulated control input terminal
A circuit which protects an integrated circuit (IC) device from damage due to electrostatic discharge (ESD). The protection circuit includes an N-channel metal oxide semiconductor field effect...
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6072682 |
Protection circuit for an electric supply line in a semiconductor integrated device
A protection circuit for a power supply line in a semiconductor device, comprising first and second field-effect transistors, both transistors having their respective drain terminals connected to...
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6072677 |
Electrostatic discharge protective circuit formed by use of a silicon controlled rectifier
An electrostatic discharge protective circuit formed by use of a silicon controller rectifier is coupled to an input port and an internal circuit for discharging electrostatic charges on the input...
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6069782 |
ESD damage protection using a clamp circuit
A circuit for protecting the internal circuitry of a semiconductor chip from increased power supply voltages due to electrostatic discharge events is presented. The circuit comprises a trigger...
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6069781 |
Device for protecting medium voltage equipment against voltage surges
Suppression of transient voltage surges in an electrical power-carrying line is achieved by a voltage surge suppressor having a capacitor, varistor, and gas tube connected in parallel between the...
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6067221 |
Voltage unit housing
A telecommunications protection unit includes a voltage unit having an electrically insulating base configured to house a diode module assembly and a voltage limiting cell therein. The voltage...
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6067220 |
Shunt for protecting a hard file head
In one embodiment, a variably conductive shunt is provided for protecting a read/write sensor element, e.g., an MR read element, which has first and second terminals. A variably conductive member...
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6067216 |
Safeguard feature in a circuit arrangement for protecting an electrical component from an undesirable electrical potential
A safeguard feature prevents supply of voltage to an electrical device in the event a protective element is no longer reliably connected in a circuit arrangement for protecting a susceptible...
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6064558 |
Electrical surge protector for center conductor devices
A electrical surge protector includes a metal tube having a pair of non-conductive stoppers mounted within each end to form an enclosed cavity therebetween. A conductor wire extends the length of...
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6064557 |
Semiconductor device structured to be less susceptible to power supply noise
A semiconductor device comprises an MOS transistor, as a capacitive element, formed at the surface of a semiconductor substrate. A first power supply interconnection, above the substrate, applies a...
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6064556 |
Protection circuit for an electric pulse supply line in a semiconductor integrated device
A protection circuit for a pulse type power supply line of an integrated circuit device. The protection circuit includes a switching circuit having a preset delay, and a first transistor that is...
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6064555 |
Radiation induced single event latchup protection and recovery of integrated circuits
An apparatus is disclosed for improving the Single Event Latchup (SEL) performance of an integrated circuit device (IC), or grouping of devices (as an example Multi-Chip Modules or MCMs), through...
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6061222 |
Method and apparatus for reducing noise in integrated circuit chips
A method and apparatus for reducing noise in integrated circuit chips (ICs). The apparatus comprises on-die capacitance in conjunction with one or more resistive loss elements, which provide an AC...
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6061218 |
Overvoltage protection device and method for increasing shunt current
An overvoltage protection device (40) and a method for increasing the overvoltage current the device can carry. The overvoltage protection device (40) includes a Silicon Controlled Rectifier (SCR)...
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6057999 |
Device for preventing generation of X-ray and overvoltage
Device for preventing generation of X-ray and overvoltage, in which abnormal voltages at voltage output terminals are detected to control a power supply part and a horizontal deflection outputting...
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6057577 |
Component of protection of an integrated MOS power transistor against voltage gradients
The present invention relate to a device of protection against voltage gradients of a monolithic component including a vertical MOS power transistor and logic circuits. The protection circuit has...
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6052269 |
Electrostatic discharge protection circuit using point discharge
A protection circuit using point discharge suitable for use in an integrated circuit, protects circuit from damage by electrostatic discharge. The integrated circuit at least comprises an...
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6052267 |
Electric field discharge surge absorbing element and method for making same
An electric field electron discharge surge absorbing element includes a first substrate member having an electron discharge portion on which a plurality of emitters are formed, and a second...
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6046897 |
Segmented bus architecture (SBA) for electrostatic discharge (ESD) protection
A segmented bus architecture (800) removes certain ESD circuitry from each I/O pad cell (806, 812) and places it in a power pad cell (808, 814) or in some other unused area of the integrated...
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6046894 |
Semiconductor protection circuit and method
A protection circuit (20) protects a semiconductor device (10) from damage due to electrostatic charge transferred to a terminal (19) of the semiconductor device. A voltage follower (26) senses a...
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6043971 |
Electrostatic discharge protection device for liquid crystal display using a COG package
The electrostatic discharge (ESD) protection device for a liquid crystal display using a chip on glass (COG) package is provided. The ESD protection device includes a plurality of gate lines and...
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6043970 |
High voltage driving circuit reducing a transient current
The present invention relates to a high voltage driving circuit for preventing an transient current. The high voltage driving circuit including a non-overlap signal generator for generating the...
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6043969 |
Ballast resistors with parallel stacked NMOS transistors used to prevent secondary breakdown during ESD with 2.5 volt process transistors
Electrostatic discharge (ESD) protection is provided for NMOS pull up transistors 700A-H and 702A-H of a 5.0 volt compatible output buffer using 2.5 volt process transistors. The ESD protection...
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6043968 |
ESD protection circuit
An inverter is connected between an external GND terminal and a drain of an internal circuit such that the drain of the internal circuit is not directly connected to the external GND terminal. As a...
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6043967 |
Early trigger of ESD protection device by a voltage pump circuit
A transient voltage pump is provided to generate a high voltage pulse for triggering turn-on of an ESD protection device. As VDD-to-VSS voltage increases rapidly in the initial ESD event, the...
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6038118 |
Lightning protector system
A lightning detector system which includes a radio frequency (RF) detector assembly which receives input from an antenna and a line sensor in order to sense signatures of compromising events such...
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6034853 |
Solid state relay
A solid state relay prevents the damage to photothyristor couplers when their performance characteristics vary slightly and enables phase angle control of an AC power supply using a less costly...
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6034552 |
Output ESD protection using dynamic-floating-gate arrangement
A dynamic-floating-gate arrangement is used to improve the ESD robustness of driving-current-programmable CMOS output buffers in cell libraries, by suitably dynamically floating the gates of the...
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