Matches 301 - 350 out of 1646 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
Match Document Document Title
6683770 Tri-mode over-voltage protection and disconnect circuit apparatus and method  
A single-phase apparatus and method having a component-efficient circuit configuration for protecting AC power lines from power surges and preventing the hazardous condition occurring at the wall...
6680839 Apparatus and method for reducing and balancing the capacitance of overvoltage protector in high frequency transmissions  
An apparatus and method for reducing and balancing the off-state capacitance of an overvoltage protection circuit utilizes one or more diode networks electrically connected in series with an...
6680838 Electrostatic discharge protection circuit  
This invention provides an electrostatic discharge (ESD) protection circuit for protecting an internal circuit. The ESD protection circuit and the internal circuit are formed on a P-type substrate...
6680833 Input-output protection device for semiconductor integrated circuit  
An input-output ESD protection device is formed on a semiconductor substrate. A MOS protection device has a drain diffusion layer, a gate, a source diffusion layer, and a body, respectively. An...
6678140 Modular structures for transient voltage surge suppressors  
Improved modular transient voltage surge suppressor apparatus that provide a simple structure for coupling multiple modules are disclosed. In general, such apparatus includes a substrate; a...
6678130 Voltage regulator with electrostatic discharge shunt  
An electronic circuit consists of a voltage regulator and an electrostatic discharge (ESD) shunt. The voltage regulator maintains a prescribed voltage for the voltage supply of the chip. The ESD...
6674625 Lightning protection systems  
A lightning protection system including a monitoring system ( 10 ) for detecting dangerous atmospheric conditions within specific geographic zones, a transmission system ( 12 ) for sending control...
6674622 Dynamic floating SCR (semiconductor-controlled-rectifier) ESD protection  
This invention provides a circuit and a method for protecting electronic circuits from electrostatic damage ESD. The invention teaches a dynamic floating silicon-controlled rectifier SCR for use as...
6671153 Low-leakage diode string for use in the power-rail ESD clamp circuits  
A diode string with very low leakage current is used in power supply ESD clamp circuits. By adding an CMOS-Controlled Lateral SCR device into the cascaded diode string, the leakage current of this...
6671147 Double-triggered electrostatic discharge protection circuit  
A double-triggered electrostatic discharge (ESD) protection circuit for coupling with a first voltage source and a second voltage source. The circuit includes a diode series and a transistor. The...
6671146 Electrostatic protection circuit and semiconductor integrated circuit using the same  
An electrostatic protection circuit of the present invention comprises: a first power supply terminal 1 to which a first voltage is applied; a second power supply terminal 2 to which a second...
6670840 Input clamp circuit for 5V tolerant and back-drive protection of I/O receivers using CMOS process  
In a receiver input back-drive protection circuit and method, a pass gate is provided between the high pad voltage and the receiver input and a clamping circuit is provided, to present a reduced...
6667871 Arrester housing with weak section  
An electrical device includes a housing with first and second portions. Each of the first and second portions has a first insulative layer and a second conductive layer. The first and second layers...
6667870 Fully distributed slave ESD clamps formed under the bond pads  
The pads of a semiconductor die are protected from an electrostatic discharge (ESD) event by an ESD protection circuit that has a number of master corner clamps and a number of slave clamps that...
6667867 Stable BJT electrostatic discharge protection clamp  
In an ESD protection circuit for an analog bipolar circuit, the avalanche breakdown voltage of a BJT acting as an avalanche diode is reduced by injecting current into the base of the BJT. This is...
6665160 Voltage control component for ESD protection and its relevant circuitry  
The present invention proposes an ESD protection circuit and its related circuits, suitable in an integrated circuit (IC), and coupled between a first pad and a second pad. When a power supply is...
6665159 Semiconductor integrated circuit device  
Into an internal circuit to operate in a high-frequency band, there is incorporated a protective circuit of a multistage connection which is constructed to include a plurality of diode-connected...
6661646 Niobium capacitor and method of manufacture thereof  
A capacitor having a large capacity per unit weight and good LC characteristics is provided, which includes two electrodes and a dielectric interposed between the two electrodes, and the dielectric...
6661634 Digital subscriber line alternating current EMI/RFI broadband noise eliminator  
The present invention provides an apparatus and method for filtering electrical power to and from an electrical appliance to reduce or eliminate electromagnetic interference (EMI) and radio...
6657843 Lightning arrestor device for high power electric installations  
A lightning arrestor device for protecting an installation ( 3 ) powered by an electric transmission line ( 1 ) includes at least two assemblies connected in parallel between the line terminals,...
6657836 Polarity reversal tolerant electrical circuit for ESD protection  
An ESD protection circuit is provided which offers full protection for sub micron CMOS technology integrated circuits that does not have a latchup problem as in silicon controller rectifier...
6657835 ESD protection circuit for mixed-voltage I/O by using stacked NMOS transistors with substrate triggering technique  
An ESD protection circuit for Mixed-Voltage I/O by using stacked NMOS transistors with substrate triggering technique is disclosed. The ESD protection circuit contains a set of stacked NMOS...
6657150 Shorting switch and system to eliminate arcing faults in power distribution equipment  
A shorting switch includes a vacuum switch having fixed and movable contact assemblies and a driven member. A spring cover tube and bushing mount the driven member for linear movement along a path...
6650525 Component carrier  
The present invention is a surface mount component carrier comprised of a disk of insulating material having at least two apertures. The disk is substantially covered by a metalized ground surface...
6646842 Inrush current suppression circuit  
An inrush current suppression circuit is installed between a DC voltage and a load with a parallel system capacitor. The inrush current suppression circuit includes a first current limiting circuit...
6646841 ESD-protection of integrated circuit  
A chip assembly comprising a chip mounted on a support is disclosed. The chip assembly comprises at least one terminal and discharge means for discharging a charge accumulated on or transferred to...
6643109 Fully synthesisable and highly area efficient very large scale integration (VLSI) electrostatic discharge (ESD) protection circuit  
An electrostatic discharge (ESD) protection circuit comprises a P-channel field effect transistor (PFET), a buffer and a damping network to provide improved protection for an integrated circuit...
6639772 Electrostatic discharge protection circuit for protecting input and output buffer  
An electrostatic discharge (ESD) protection circuit for protecting input and output buffers. The ESD protection circuit is driven by a first voltage source and a second voltage source and coupled...
6639771 Internet ESD-shunt diode protected by delayed external MOSFET switch  
Electro-static-discharge (ESD) protection of an integrated circuit chip is enhanced by an EOS protection circuit using external components. An external MOSFET is placed in series with the ground...
6636404 Integrated overcurrent and overvoltage apparatus for use in the protection of telecommunication circuits  
An integrated overvoltage and overcurrent circuit protection device for use in telecommunication circuits. The integrated circuit protection device combines a overcurrent device such as a fuse and...
6635930 Protective circuit  
A protective circuit for limiting a voltage at a pad of an integrated circuit includes a threshold selector connected between the pad and ground. The input voltage to the threshold selector is the...
6633476 Watt-hour meter adapters with TVSS indicators  
The present invention relates to an apparatus comprising a watt-hour meter adapter housing having a substantially cylindrical outline with a translucent window into its interior, and having visible...
6633468 High voltage protection circuit for improved oxide reliability  
A structure is designed with an external terminal ( 100 ) and a reference terminal ( 130 ). A first transistor ( 106 ) has a current path coupled to the external terminal and has a first control...
6633197 Gate capacitor stress reduction in CMOS/BICMOS circuit  
Method and apparatus for using a MOSFET having a thin gate oxide layer as a gate capacitor is provided. The method includes the steps of biasing at least one of a source and a drain of the MOSFET...
6633009 Shorting switch and system to eliminate arcing faults in low voltage power distribution equipment  
A shorting switch eliminates arcing faults in low voltage power distribution equipment. The switch includes a base supporting a first side and an opposite second side. A first end of a spring...
6631061 Semiconductor integrated device  
A semiconductor integrated device is provided which consists of a plurality of circuit blocks. Each circuit block is connected to a power supply terminal and a ground terminal. Signal interface...
6631060 Field oxide device with zener junction for electrostatic discharge (ESD) protection and other applications  
A field oxide device (FOD) useful for electrostatic discharge (ESD) protection and other applications. The FOD is characterized as being capable of achieving a relatively low breakdown voltage and...
6631059 ESD protection circuit  
ESD protection circuit which can effectively protect a product with three or two leveled electrodes in any cases when an external (+) or (−) ESD charge flows into the product, including, in case...
6628493 System and method for electrostatic discharge protection using lateral PNP or PMOS or both for substrate biasing  
The invention comprises a system and method for providing electrostatic discharge protection. In one embodiment of the invention, an integrated circuit ( 10 ) comprising at least one input element...
6624998 Electrostatic discharge protection scheme in low potential drop environments  
Electrostatic Discharge (ESD) protection scheme includes a divided rail structure to route damaging ESD away from sensitive circuitry. Specifically, V dd and V ss rails are divided to segregate...
6624997 Electrical power conditioner  
A transformer based power conditioner to provide high purity electrical power. Capacitor based low impedance filters may be connected in the transformer secondary for noise filtering. Surge...
6624995 Semiconductor device and method of activating a protection circuit with a sampling pulse  
A semiconductor device ( 10 ) includes a protection circuit ( 12 ) that has an input ( 24 ) for activating the protection circuit in response to a sampling pulse (V ENABLE ) to detect a fault...
6621680 5V tolerant corner clamp with keep off circuit and fully distributed slave ESD clamps formed under the bond pads  
The pads of a semiconductor die are protected from an electrostatic discharge (ESD) event by an ESD protection circuit that has a number of master clamps and a number of slave clamps that are...
6621679 5V tolerant corner clamp with keep off circuit  
An electrostatic discharge (ESD) corner clamp is connected to a positive ESD rail that has a steady first voltage, such as 2.6V, and can be driven to a larger second voltage, such as 4.3V. The ESD...
6621673 Two-stage ESD protection circuit with a secondary ESD protection circuit having a quicker trigger-on rate  
A two-stage ESD protection circuit coupled between an I/O pad and a power rail is provided in the present invention. The two-stage ESD protection circuit has a primary ESD protection circuit and a...
6621260 Special contact points for accessing internal circuitry of an integrated circuit  
One embodiment of the present invention concerns an integrated circuit that includes bond pads and special contact pads or points. The bond pads are for interfacing the integrated circuit as a...
6618233 Double triggering mechanism for achieving faster turn-on  
An ESD protection circuit includes a SCR and a switching means, such as a MOS transistor connected to the SCR so that the SCR is turned on by the switching means to allow an ESD pulse to pass from...
6614633 Semiconductor device including a surge protecting circuit  
A protecting apparatus includes a back-flow preventing Zener diode having a cathode connected directly to a control terminal of a main transistor formed on a semiconductor substrate. A protecting...
6614061 Electrostatic discharge-protection semiconductor device  
The present invention provides an electrostatic discharge-protection device located between a pad and a specific voltage point. The electrostatic discharge-protection device has a P-type substrate....
6608744 SOI CMOS input protection circuit with open-drain configuration  
An integrated circuit fabricated by silicon-on-insulator technology has an input terminal coupled to the gate electrodes of a CMOS inverter. Within the integrated circuit, the input terminal is...
Matches 301 - 350 out of 1646 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >