Matches 101 - 150 out of 440 < 1 2 3 4 5 6 7 8 9 >
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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...
6049445 Overvoltage and electrostatic discharge protection for a receiver circuit  
A receiver circuit that is substantially insensitive to overvoltage and electrostatic discharge (ESD) conditions. The receiver circuit includes a pass transistor having an input side for receiving...
6021037 Device including a thermally protected switching transistor  
A device (1) for supplying electric power to a load (4) connected to the device (1) in a power-on mode comprises a driver stage (7), a control unit (9), adapted to supply turn-on pulses to the...
6011681 Whole-chip ESD protection for CMOS ICs using bi-directional SCRs  
CMOS VLSI chips with pin counts greater than 100 often have multiple power pins to supply sufficient current for circuit operations. In mixed voltage ICs there are separated power pins with...
6008974 Electrostatic discharge protective circuit for reducing an undesired channel turn-on  
An electrostatic discharge (ESD) protective circuit for reducing the electron-tunneling phenomena in NMOS devices. Several complementary metal oxide semiconductor (CMOS) devices act as an ESD...
6008508 ESD Input protection using a floating gate neuron MOSFET as a tunable trigger element  
Disclosed is a floating gate neuron MOS transistor that may be incorporated into devices such as low voltage silicon control rectifiers for protection of internal circuits against electrostatic...
5999041 Load actuation circuit  
An output MOS transistor and a current-detecting MOS transistor are connected commonly at their drains and gates. A gate voltage is fed to the gates of these transistors via signal lines. When the...
5999390 Input buffer circuit for semiconductor device  
A CMOS input buffer for semiconductor devices, that is capable of protecting its MOS transistors from gate oxide breakdown due to the application of high voltage greater than a normal power supply...
5986861 Clamp  
This invention relates to a device for protecting a circuit against voltage surges, including a MOS transistor of a first type connected to first and second supply terminals by its source and its...
5973900 High voltage protection for an integrated circuit input buffer  
Connection of a reference voltage to an inverter of an input buffer is controlled to protect the buffer from damage due to high voltage connected to the buffer so that the inverter is isolated from...
5946178 Protective circuit for series-connected power semiconductors  
A semiconductor assembly with overvoltage protection is provided. The semiconductor assembly comprises at least two series connected power semiconductors, each of which is protected by at least one...
5923202 Input/output overvoltage containment circuit for improved latchup protection  
An I/O current containment circuit capable of protecting a semiconductor device from input current that may cause latchup includes a MOS drive circuit and a parasitic sensing circuit having...
5910873 Field oxide transistor based feedback circuit for electrical overstress protection  
A circuit for protecting an interface cable driver and the circuitry attached to the driver from electrical overstress damage, such as that which may arise from an electrostatic discharge. The...
5905621 Voltage scaling circuit for protecting an input node to a protected circuit  
A voltage scaling circuit for protecting an input node to a protected circuit uses a voltage shifting circuit that includes two nmos transistors. One nmos transistor is configured as a...
5880514 Protection circuit for semiconductor device  
A protection circuit for a semiconductor device, the protection circuit being connected an input terminal of the semiconductor device in parallel with an internal circuit proper of the...
5877928 Electronic circuit device  
First and second terminals between which a predetermined source voltage is applied and between which are connected, a plurality of electronic circuit blocks connected in series, and a plurality of...
5852611 Module for a serial multiplex data input protection circuit  
A programmable data link module for use with a time division multiplex data bus includes an input and a high voltage protection circuit to prevent outputting of data to the data bus under several...
5852538 Power element driving circuit  
A power element driving circuit is provided with an abnormality detecting circuit which detects an occurrence of abnormality in an IGBT (power element) or a short-circuit load based on a collector...
5838524 Current limit circuit for inhibiting voltage overshoot  
A current limit circuit for preventing voltage overshoot in a driver circuit. A diode is coupled to the output terminal of the driver circuit. The diode's junction capacitance is utilized to reduce...
5831806 Protective circuit for BiCMOS/CMOS circuitry in hybrid VCC systems during H operation  
The present invention relates to a protective circuit for BiCMOS/CMOS circuitry in hybrid VCC systems during H operation. The object of the invention is to create such a protective circuit, which...
5815355 Modulation compensated clamp circuit  
A radio frequency identification (RFID) tag includes a tank circuit for receiving a power signal transmitted on a radio frequency (RF) carrier by a remote interrogator unit. Information is conveyed...
5812354 Semiconductor integrated circuit device having substrate potential detecting circuit less damaged by static charge propagated thereto through shared conductive line  
A semiconductor integrated circuit device communicates with an external device through signal terminals, and is powered through power terminals; protective circuits are respectively connected to...
5798662 Low-side driver with gate leakage detection circuitry  
Gate leakage in the DMOS transistor of a low-side driver device is detected and reported by utilizing a sense circuit to sense the voltage on the gate of the DMOS transistor, and by determining...
5796567 Electronic circuit with protection against supply voltage overload  
A semiconductor electronic circuit with a protection device against supply voltage overloading, being of the type which comprises a first power circuit portion connected to a power supply line and...
5781390 Integrated supply protection  
An electrical power protection integrated circuit provides protection against reverse battery and overvoltage conditions that is particularly of value in automotive applications in which reverse...
RE35847 Self-terminating data line driver  
The invention is a self-terminating helper flip-flop buffer circuit pertinent to a dynamic random access memory (DRAM) or static random access memory (SRAM) device. The invention turns off a device...
5781391 IC having built-in over voltage protecting circuit  
An IC having a built-in over voltage protecting circuit comprising: a first operating circuit having a first resistor connected to a terminal the voltage at which varies depending on a voltage at a...
5764468 Circuit comprising a bus conductor and a bus interface circuit  
Various circuit components can communicate via a bus conductor. One circuit component comprises an interface stage with a transistor coupled between the bus conductor and a power supply terminal....
5760630 Input protection circuit having load resistor implemented by p-channel MIS transistor  
An input protection circuit which protects a first-stage inverter circuit against an electrostatic surge. The input protection circuit includes n-channel MIS type punch-through transistor for...
5757601 Short circuit protection for high side driver  
A short circuit protection system that reacts to a voltage across an electrical load to prevent overdissipation of a semiconductor switch in the event of a short circuit. The system includes a...
5754074 Protected switch  
A protected switch has a power first semiconductor device having a first main electrode for coupling to a first voltage supply line, a second main electrode coupled to a first terminal for...
5753982 Apparatus for supplying power to a peripheral device from computer system  
An apparatus for supplying power to a peripheral device of a computer directly from the system power supply is disclosed. An expansion interface connector or a standard interface connector is used...
5696397 Input protection circuit and method of fabricating semiconductor integrated circuit  
The present invention provides an input protection circuit including a first MOS FET including a source electrically connected to an input terminal and a drain and a gate both electrically...
5654858 Overvoltage control circuitry  
Output overvoltage protection circuitry for circuits operating at low voltages (e.g., 3 v) interfacing to a higher voltage operating circuit (e.g., 5 v bus). To prevent problems with a pull-up PMOS...
5644462 Electrical power/ground continuity indicator protection circuit  
The present invention concerns an electrical power cord having an illuminated connector including a circuit to protect a power and/or ground continuity indicator incorporated into the connector....
5631797 Overvoltage protector  
An overvoltage protection circuit using a diode bridge and a thyristor. The inputs to the bridge (first and second terminals) are coupled to a telephone line to be protected. The positive output of...
5596470 Fault current protection circuit for an auxiliary device in a digital telephone system  
A fault current circuit apparatus for an auxiliary device connectable to telecommunications terminal devices, particularly a telephone set, in a digital telephone system is provided. In addition,...
5587867 Surge absorber  
A surge absorber composed of a surge absorbing element comprising a silicon two-terminal thyristor element having a PNPNP or NPNPN junction structure and a bulk resistance element 12 comprising a...
5574395 Semiconductor circuit  
A semiconductor circuit which has such a configuration that a power supply terminal connected to an overvoltage protection circuit is formed independently from a power supply terminal connected to...
5574609 Fail-safe MOS shutdown circuitry  
A dual discharge network is shown discharging any residual charge on the gates of MOSFET's used to protect a device from over voltages. The dual discharge networks are separately responsive to a...
5568348 Insert device for electrical relays, solenoids, motors, controllers, and the like  
An insert device employing electronics is non-intrusively disposed between an electronic mechanism's pins and female connector in order to provide the mechanism with electronic functional...
5563758 Circuit to permit three phase input power supply to operate when one phase drops out and provide lightening protection  
A power supply circuit receives and rectifies a three phase power source. A first capacitor is coupled to filter and store the rectified three phases and supply the stored energy to a DC/DC...
5559656 IGBT switching voltage transient protection circuit  
A circuit for preventing switching voltage transients from damaging the IGBT during short circuit shut off, utilizing electronic gate control which decrease the rate of fall of the gate voltage of...
5559658 Solid-state high voltage crowbar circuit  
Cascaded transistor stages are connected between a high voltage and a resistance coupled to a lower potential. The transistor stage closest to the lower potential is referred to as a driver stage,...
5555153 Voltage and/or current protector and grounding bar arrangement for AT&T style 110 block  
A voltage protector and grounding bar arrangement is provided for use with a telephone terminal block having at least two rows of terminals which are spaced apart from each other so as to define an...
5539327 Protection circuit which prevents avalanche breakdown in a fet by having a floating substrate and a voltage controlled gate  
A transistor circuit comprises a MOS transistor with an open back gate, and control means for controlling a voltage to be applied to the control gate of the MOS transistor, whereby the control...
5521413 Semiconductor device having a solid metal wiring with a contact portion for improved protection  
On the surface of a p-type semiconductor substrate, an n-type diffusion layer is formed. The diffusion layer is in contact with an aluminum wiring via a contact hole formed through an interlayer...
5515225 Integrated circuit protected against electrostatic overvoltages  
A circuit protects pads of an integrated circuit having a plurality of power supply sources against electrostatic overvoltages. Each power supply is connected between a high voltage pad and a low...
5514893 Semiconductor device for protecting an internal circuit from electrostatic damage  
A semiconductor device includes an input/output terminal, an internal circuit connected to the input/output terminal, a first terminal for providing a first electrical potential, and a second...
5515224 Limitation of current absorption under short-to-plus unpowered conditions of the output node of an amplifier  
A transistor in an output stage has an emitter connected to a supply rail and a collector connected to an output node. The transistor is protected against the effects of accidental shortcircuiting...
Matches 101 - 150 out of 440 < 1 2 3 4 5 6 7 8 9 >