Matches 501 - 550 out of 595 < 1 2 3 4 5 6 7 8 9 10 11 12 >
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5397931 Voltage multiplier  
The present invention relates to a voltage multiplier for generating an output voltage which is several times greater than the operating voltage for connection of a load connected to ground to the...
5396128 Output circuit for interfacing integrated circuits having different power supply potentials  
An output driver circuit has a circuitry portion (70) which is used to generate a Drive-Hi control signal in response to an Output Enable, an optional Precondition signal, and a Data Input signal....
5394365 Charge pump circuit having an improved charge pumping efficiency  
A charge pump circuit includes a P channel field effect transistor, a diode-connected N channel field effect transistor between a first node and a second node. The P channel field effect transistor...
5389827 Quick recovery AC coupling circuit  
A quick recovery AC coupling circuit has a coupling capacitor stage that generates an output DC-biased AC signal by capacitively coupling an input DC-biased AC signal generated by a source stage....
5386151 Low voltage charge pumps using p-well driven MOS capacitors  
A low voltage charge pump operable with a low voltage power supply and a clock signal is provided for delivering a final output voltage which is higher than the supply voltage. The low voltage...
5381061 Overvoltage tolerant output buffer circuit  
A tristate output buffer circuit provides overvoltage protection from voltage signals on a common bus having a higher voltage level than the internal high potential power rail of the tristate...
5381056 CMOS buffer having output terminal overvoltage-caused latch-up protection  
A CMOS buffer circuit includes a p-channel MOS transistor having a source terminal connected to an operating voltage source and a substrate terminal connected to a pump voltage source. A first...
RE34797 Semiconductor memory device having a back-bias voltage generator  
In typical MOS integrated circuit devices, the level of the back-bias voltage which is generated by a built-in back-bias generation circuit and is supplied to a semiconductor substrate is changed...
5367489 Voltage pumping circuit for semiconductor memory devices  
A high density semiconductor device is provided with an improved voltage pumping (bootstrapping) circuit. The voltage pumping circuit generates at an initial power-up state a first output voltage...
5343087 Semiconductor device having a substrate bias generator  
A semiconductor device includes an enhancement MOS transistor formed in a semiconductor substrate and a substrate bias generator supplies a predetermined bias voltage to the substrate. The impurity...
5342799 Substrate slew circuit process  
The described embodiments of the present invention provide a substrate slew circuit that eliminates electron injection. The slew circuit comprises a semiconductor substrate, at least one transistor...
5341034 Backup battery power controller having channel regions of transistors being biased by power supply or battery  
A power control circuit (10) is operable to select between a backup battery (14) on a terminal (16) and a primary power supply voltage on a terminal (12) to output a voltage to a powered device...
5338978 Full swing power down buffer circuit with multiple power supply isolation  
A full swing CMOS output buffer circuit (20,30,40,50) isolates incompatible power supply circuits such as 3.3 v standard and 5 v standard subcircuits, and isolates power supply rails of quiet or...
5329168 Semiconductor integrated circuit device equipped with substrate biasing system selectively powered from internal and external power sources  
A dynamic random access memory device negatively biases the semiconductor substrate, and a substrate bias system incorporated therein produces a negative bias voltage from an external power voltage...
5321293 Integrated device having MOS transistors which enable positive and negative voltage swings  
A semiconductor circuit integrated with CMOS circuits for receiving a TTL input voltage and generating a large negative and positive voltage swing with respect to p-type or n-type substrate is...
5315166 Substrate voltage generator and method therefor in a semiconductor device having selectively activated internal stepped-down power supply voltages  
A semiconductor device having an internal voltage down converter includes a circuit operating with an externally applied power supply voltage, a circuit operating with an external stepped-down...
5295095 Method of programming electrically erasable programmable read-only memory using particular substrate bias  
The apparent voltage used to program an EEPROM cell is increased by applying a negative voltage to the memory control gate of the sense transistor in the cell. This method is applicable to devices...
5270583 Impedance control circuit for a semiconductor substrate  
The semiconductor circuit device comprises a substrate bias generating circuit, a substrate voltage detecting circuit, and a substrate impedance adjusting circuit. When the detected substrate...
5270584 Semiconductor integrated circuit  
A semiconductor integrated circuit which comprises a detection circuit for detecting a voltage of a semiconductor substrate and a negative voltage generating circuit for generating a negative...
5266843 Substrate slew circuit  
The described embodiments of the present invention provide a substrate slew circuit that eliminates electron injection. The slew circuit comprises a semiconductor substrate, at least one transistor...
5266842 Charge pump circuit for a substrate voltage generator  
A charge pump circuit of a substrate voltage generator used for a semiconductor memory device, comprising a first transistor whose channel is connected between a first pumping capacitor and a...
5266849 Tri state buffer circuit for dual power system  
A CMOS tri-state buffer circuit transfers digital signals between a first digital circuit system operating at 3.3 Volts and a second system operating at 5 Volts. The buffer circuit receives an...
5264808 Substrate potential adjusting apparatus  
A substrate potential adjusting apparatus of the invention includes: a pump circuit for drawing a current from a semiconductor substrate to adjust a substrate potential; ring oscillators for...
5247208 Substrate bias generating device and operating method thereof  
A substrate bias generating circuit including waveform shaping circuits for producing two signals having different phases on the basis of signals in phase extracted from a ring oscillator and two...
5243228 Substrate bias voltage generator circuit  
A substrate bias voltage generator circuit has a substrate bias voltage detector circuit, a substrate bias driver circuit, and a charge pump circuit. the substrate bias voltage detector circuit...
5227675 Voltage generator for a semiconductor integrated circuit  
A semiconductor integrated circuit comprises a chip, an oscillator provided on the for producing an alternate current with a controlled amplitude that is determined by the drive voltage, a...
5220534 Substrate bias generator system  
A circuit for providing a bias to the substrate of a dynamic memory device having a memory array and peripheral circuitry formed in a semiconductor substrate is disclosed. The circuit includes a...
5212415 Precharge circuit  
A precharge circuit is provided with a step-up node circuit including a capacitor for delivering a drive voltage at a predetermined level to a load, and for raising the voltage level of the drive...
5212456 Wide-dynamic-range amplifier with a charge-pump load and energizing circuit  
An amplifier has a first stage employing a pair of differentially connected NMOS amplifier transistors, a second stage composed of a bipolar current mirror circuit and two charge pumps. Each charge...
5208557 Multiple frequency ring oscillator  
A multiple frequency oscillator responds to a control signal to selectively produce an output signal having a first frequency or a second frequency. The oscillator includes a plurality of inverter...
5202590 Subthreshold sense circuit for clamping an injected current  
A subthreshold sense circuit for clamping an injected current at the input pins of an integrated circuit device before the injected current causes the voltage at the input pins to exceed the supply...
5196996 High voltage generating circuit for semiconductor devices having a charge pump for eliminating diode threshold voltage losses  
A high voltage generating circuit for semi-conductor devices which removes a threshold voltage and generates a high voltage above a source voltage or a negative voltage below a ground voltage,...
5191232 High frequency voltage multiplier for an electrically erasable and programmable memory device  
A charge pump has a chain of diode connected MOS transistors to generate a high voltage output. Each of the serially connected MOS transistors has a capacitor with one end connected to the input of...
5191235 Semiconductor integrated circuit device having substrate potential detection circuit  
A node potential V1 which is obtained by the division of an internal reference potential and a substrate potential and another node potential V2 which is obtained by the division of the internal...
5184030 Back bias generating circuit  
A back bias generating circuit comprising a ring oscillator for generating a signal of alternating current waveform, a back bias generating section for generating a back bias voltage, the back bias...
5182529 Zero crossing-current ring oscillator for substrate charge pump  
A ring oscillator for use with a charge pump includes an odd number of inverter stages each having a primary input, a secondary input, and an output. Both inputs are switched to the same logic...
5182469 Integrated circuit having bipolar transistors and field effect transistors respectively using potentials of opposite polarities relative to substrate  
An integrated circuit having a first group of semiconductor components which use potentials which are positive with respect to the substrate and a second group of components which use potentials...
5179292 CMOS current steering circuit  
A CMOS circuit for steering current utilizing minimal power includes a first stage comprising a first powering transistor and a first idling transistor essentially in a parallel configuration and...
5163169 Frequency divider having the power supply connected to the GaAs substrate  
A frequency divider circuit including a field effect transistor on a semi-insulating substrate including applying a voltage higher than the lowest of the power supply voltages of the frequency...
5159207 Circuit for dynamic isolation of integrated circuits  
A dynamic isolation circuit belonging to a monolithic integrated circuit comprising lateral transistors and vertical transistors. The lateral transistors are isolated by an isolating region...
5157278 Substrate voltage generator for semiconductor device  
The present invention relates to a substrate voltage generator for a semiconductor device, comprising an oscillator for generating an oscillating signal to compensate the resistance value with...
5157279 Data output driver with substrate biasing producing high output gain  
The data output driver circuit producing high output gain, by controlling the voltage decline caused by body effect produced by a difference between bulk voltage and source voltage in the NMOS...
5119337 Semiconductor memory device having burn-in test function  
A semiconductor memory device such as dynamic random access memories comprises a work line drive circuit provided with two MOS transistors and a word line to which a word line drive signal is...
5099146 Controlled threshold type electric device and comparator employing the same  
In a controlled threshold type electric device having first and second transistors and a differential amplifier which receives a reference input voltage, a voltage corresponding to the threshold...
5059838 Signal delay circuit using charge pump circuit  
A delay circuit delays an input signal having a predetermined frequency by a time corresponding to a control signal. A delay amount detector detects a signal delay amount of the delay circuit. A...
5057704 Semiconductor integrated circuit having substrate potential detecting circuit commonly used  
A semiconductor integrated circuit for controlling the substrate potential is disclosed, in which a substrate potential generating circuit is connected to a substrate and can be operated on at...
5045716 Integrated circuit in complementary circuit technology comprising a substrate bias voltage generator  
An integrated circuit in complementary circuit technology comprises a substrate bias voltage generator which reverse biases the substrate, into which tubs of opposite conductivity are inserted. The...
5043597 Substrate bias generation circuit used in semiconductor integrated circuit  
A semiconductor integrated circuit device includes a semiconductor substrate, a semiconductor integrated circuit including the semiconductor substrate, a semiconductor chip having the semiconductor...
5029063 MOSFET multiplying circuit  
The invention relates to a voltage multiplying circuit having several stages, with each stage having a pumping capacitor and several MOS switching transistors. The switching transistors are so...
5022005 Semiconductor memory device having plural biasing circuits for substrate  
A dynamic random access memory device according to the present invention has a plurality of memory cells each of the one-transistor and one-capacitor type and a plurality of biasing circuits for...
Matches 501 - 550 out of 595 < 1 2 3 4 5 6 7 8 9 10 11 12 >