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6775121 |
Power line surge protection device
Power line surge protection device comprising AC power line overvoltage protection, telephone voice line overvoltage and overcurrent protection, high speed data line overvoltage and overcurrent...
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6775116 |
Method and apparatus for preventing buffers from being damaged by electrical charges collected on lines connected to the buffers
An apparatus and method are provided for preventing buffers used to reduce delays on long lines of an IC from being damaged due to charge that collects on the buffers during manufacturing. In...
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6775112 |
Apparatus and method for improving ESD and transient immunity in shunt regulators
Voltage regulators are exposed to extreme amounts of voltage over short periods of time during an electrostatic discharge (ESD) event. Shunt regulators require protection from ESD events....
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6768618 |
Input gate protection circuit and method
An input gate protection circuit has a pass transistor having a source coupled to an input signal. A first voltage range control circuit is coupled to a gate of the pass transistor. A second...
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6768617 |
Setpoint silicon controlled rectifier (SCR) electrostatic discharge (ESD) core clamp
An adjustable setpoint ESD core clamp for ESD protection circuits is disclosed. The core clamp includes an SCR whose P+N trigger junction is referenced to a diode stack. The SCR is non-avalanche...
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6768616 |
Electrostatic discharge protection structures for high speed technologies with mixed and ultra-low voltage supplies
An electrostatic discharge (ESD) protection circuit in a semiconductor integrated circuit (IC) having protected circuitry. In one embodiment, the ESD protection circuit includes a pad, adapted for...
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6768355 |
Transient rejecting circuit
A transient rejecting system for protecting the state of a memory is described. The transient rejecting system includes a signal transfer circuit and a charge storage circuit coupled to at least...
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6765771 |
SCR devices with deep-N-well structure for on-chip ESD protection circuits
An ESD protection component with a deep-N-well structure in CMOS technology and the relevant circuit designs are proposed in this invention. The ESD protection component comprises a lateral silicon...
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6764892 |
Device and method of low voltage SCR protection for high voltage failsafe ESD applications
A semiconductor circuit for multi-voltage operation having built-in electrostatic discharge (ESD) protection is described, comprising a drain extended nMOS transistor and a pnpn silicon controlled...
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6762921 |
Multilayer printed-circuit board and method of manufacture
This invention is to propose a technique of producing a printed wiring board having an excellent adhesion property between an electroless plated film and an electrolytic plated film constituting a...
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6762919 |
High voltage power supply apparatus
In the electrophotographic copying apparatus or printer, a current proportional to the output current of the high voltage output circuit for supplying the charger etc. with a high voltage is...
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6762460 |
Protection circuit provided in semiconductor circuit
A protection circuit including a power supply terminal supplied with a power supply potential, a reference terminal supplied with a reference potential, and a first p-channel MOS transistor having...
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6760209 |
Electrostatic discharge protection circuit
An electrostatic discharge ESD protection circuit is provided which can selectively be set to operate with a buffer which is programmably controlled to be compatible with different types of...
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6757148 |
Electro-static discharge protection device for integrated circuit inputs
ESD protection device for integrated circuit includes: A MOS transistor is connected between a supply potential and a ground potential for PD and ND ESD modes. A first-level protection device, such...
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6757147 |
Pin-to-pin ESD-protection structure having cross-pin activation
A cross-pin electro-static-discharge (ESD) protection device protects against ESD zaps between two I/O pins. Pin A is connected to a drain of a bus-switch transistor and pin B is connected to the...
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6756834 |
Direct power-to-ground ESD protection with an electrostatic common-discharge line
ESD protection is provided by local ESD-protection devices between each pad and a common-discharge line (CDL). Each ESD-protection device has p-well or p-substrate taps to a local ground rather...
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6754059 |
Multi-pole low voltage circuit breaker with one current measuring device per line
A current measuring device for a multi-pole voltage circuit breaker includes a support body with a through opening for a current conductor for each of the poles and a receiving chamber, surrounding...
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6754057 |
Capacitor damage arrestor
A method for mounting a component on an assembly is provided, such as to prevent shorting between a voltage plane and a ground plane that may be caused when the component fails and generates...
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6747861 |
Electrostatic discharge protection for a mixed-voltage device using a stacked-transistor-triggered silicon controlled rectifier
An electrostatic discharge protection circuit that includes a rectifier, having an anode and a cathode, including a first p-type portion, a first n-type portion contiguous with the first p-type...
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6747859 |
Modular power line network adapter
A modular feed-though adapter that allows an electrical connection to a power line network adapter without “using up” an electrical outlet is described. In one embodiment, the modular...
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6744613 |
System and method for filtering multiple adverse characteristics from a power supply source
A system and method for conditioning a power transmission, thereby eliminating adverse characteristics from the power transmission. The system selectively includes a voltage surge protector, an...
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6744612 |
Inrush current protection circuit
The invention relates to an inrush current protection circuit for a power supply. The power supply includes a rectification circuit coupled to a main body of the power supply through an...
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6744610 |
Electrostatic discharge protection circuit
An electrostatic discharge protection circuit is connected to a bonding pad and a pre-stage driver. The electrostatic discharge protection circuit includes a PMOS transistor and a NMOS transistor...
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6738249 |
Universal energy conditioning interposer with circuit architecture
The present invention relates to an interposer substrate for interconnecting between active electronic componentry such as but not limited to a single or multiple integrated circuit chips in either...
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6738248 |
ESD protection circuit for low amplitude signals
An over-voltage protected integrated circuit is provided, which includes a discharge node, an input-output pad, a signal trace, which is coupled to the input-output pad, and a pair of back-to-back...
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6735098 |
Inrush current limiting circuit, power source device and power conversion device
An inrush current limiting circuit, a power source device, and a power conversion device. The circuit and devices limit an inrush current with high reliability and durability while reducing overall...
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6734504 |
Method of providing HBM protection with a decoupled HBM structure
A semiconductor device that includes an integrated circuit and an HBM structure formed on different semiconductor substrates is provided. The HBM structure may include input or output or...
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6731488 |
Dual emitter transistor with ESD protection
The invention provides a method and circuit design for providing ESD protection. Specifically, a dual emitter transistor is used to provide bipolar operation and ESD protection. The first emitter...
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6728089 |
Surge suppressor for wide range of input voltages
The present invention is directed to a wide input voltage range surge suppressor. It includes a series circuit for attachment to an upstream AC power input, and to a downstream load. There is a...
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6727555 |
Device for protecting electronic components
A device for protecting electronic components against overvoltages of a supply voltage is provided, which device includes at least one semiconductor transistor which is switchable by a trigger...
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6724603 |
Electrostatic discharge protection circuitry and method of operation
An Electrostatic Discharge (ESD) protection circuit ( 9 ) includes a plurality of I/O and power supply pad cells ( 22, 40 ) that comprise external pads ( 31, 41 ) and circuitry requiring ESD...
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6724602 |
Panic protection from fault conditions in power converters
A method and apparatus for fault condition protection for a lighting control circuit is presented. The method consists of a hybrid software and hardware solution to take advantage of the useful...
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6724601 |
ESD protection circuit
An integrated circuit having an electrostatic discharge (ESD) protection circuit, a core protection circuit, a sensitive core circuit and peripheral circuitry is provided. The ESD protection...
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6724592 |
Substrate-triggering of ESD-protection device
Pin-to-pin electro-static-discharge (ESD) protection is provided for a bus-switch transistor that is connected to I/O pins at its source and drain. A p-type substrate is normally pumped below...
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6720625 |
Bipolar ESD protection structure
The invention describes the fabrication and structure of an ESD protection device for integrated circuit semiconductor devices with improved ESD protection and resiliency. A vertical bipolar npn...
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6717789 |
Power supply rejection circuit for capacitively-stored reference voltages
A power supply rejection circuit and method thereof for capacitively-stored reference voltages is disclosed. The power supply rejection circuit generally comprises a comparison circuit for...
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6714393 |
Transient suppression apparatus for potentially explosive environments
Transient suppression apparatus, which is coupleable in series with an electrical pathway into a potentially explosive environment for limiting current, voltage and energy thereto, comprises: an...
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6710991 |
Electrostatic-breakdown-preventive and protective circuit for semiconductor-device
The present invention provides a compact electrostatic-breakdown-preventive and protective circuit for a semiconductor-device capable of performing high-speed operations. In the...
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6710990 |
Low voltage breakdown element for ESD trigger device
As technology in the semiconductor industry advances, semiconductor devices decrease in size to become faster and less expensive per function. Smaller semiconductor devices, particularly MOSFETs,...
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6708124 |
Impulsive transient detection and data acquisition coprocessor
An impulsive transient detection and data acquisition coprocessor for use with a power monitoring device having a processor for performing data sampling and reporting at a given rate. The...
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6707658 |
Surge protection and reset circuit
A surge protection and reset circuit is provided for resetting a microprocessor to maintain a discharge lamp under a normal operating condition when the microprocessor is crashed owing to the cross...
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6707656 |
Over-voltage protection against periodic disturbances
An over-voltage protection module protects communications equipment against voltage surges, including periodic voltage disturbances. The protection module provides a steady state activation voltage...
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6707653 |
Semiconductor controlled rectifier for use in electrostatic discharge protection circuit
An electrostatic discharge (ESD) protection circuit includes an MOS transistor acting as a trigger for the circuit. A drain region of the MOS transistor is formed by an N-type heavily doped...
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6704179 |
Automated hierarchical parameterized ESD network design and checking system
A computerized method for designing electrostatic discharge (ESD) protection circuits uses a hierarchical system of parametrized cells (p-cells) which are constructed into higher level ESD...
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6700769 |
Carrier assembly for multiple pin insertion
A carrier assembly for a surge protection assembly includes: a connector strip; a plurality of pins extending from the connFiguresector strip; and wherein the connector strip and the plurality of...
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6700762 |
Filter-switched drive operating mode control
A controller for a pulse width modulated electrical drive or a dual-mode, pulse width modulated/variable voltage inverter drive is coupled to sensors within a filter at the drive output. Upon...
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6693784 |
Active power supply transient limiter circuit
The present invention is a method and system for actively limiting transient voltages across a voltage bus. Circuitry coupled to a bus may adjust the voltage level of a bus to a voltage within a...
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6690561 |
Effective gate-driven or gate-coupled ESD protection circuit
An ESD protection circuit, arranged between a first and second potential terminals, has a RC branch, a voltage adjuster circuit, and an ESD discharge transistor. The RC branch includes a resistor...
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6690557 |
CMOS whole chip low capacitance ESD protection circuit
A low capacitance electrostatic discharge circuit (ESD) for a built-in CMOS chip capable of protecting an internal circuit within the chip. A first voltage source and a second voltage source are...
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6687108 |
Passive electrostatic shielding structure for electrical circuitry and energy conditioning with outer partial shielded energy pathways
The present invention relates to a universal multi-functional common conductive shield structure plus two electrically opposing differential energy pathways which in part uses a electrode shielding...
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