Matches 251 - 300 out of 448 < 1 2 3 4 5 6 7 8 9 >
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5136183 Integrated comparator circuit  
There is disclosed a three-state buffer including a comparator circuit which comprises a plurality of bipolar transistors and which generates first and second control voltages which are dependent...
5134319 BiCMOS differential amplifier having improved switching speed  
A level changing semiconductor integrated circuit includes two current paths in which emitters of first and second bipolar transistors are each connected in series to one terminal of first and...
5128564 Input bias current compensation for a comparator  
A current compensation circuit for a comparator includes a pair of switching transistors which supply input bias current to their corresponding comparator input transistors, a pair of current to...
5099156 Subthreshold MOS circuits for correlating analog input voltages  
A first and a second MOS transistor of the same conductivity type are connected in series between a load and a fixed voltage source. The gates of the first and second MOS transistors are connected...
5087832 Balanced signal receiving circuit  
A receiving circuit includes of a differential amplifier which receives at an input stage a balanced signal transmitted from a pair of signal transmission lines and outputs a logic "H" or "L". An...
5081379 Current-sensing circuit for an IC power semiconductor device  
A circuit for measuring the current through a power transistor comprising at least two groups of parallel-switched transistors. A first large group of transistors carries the power current and a...
5079443 Voltage comparator circuit having hysteresis characteristics of narrow range of voltage  
Since the resistor is inserted between each of the emitters of the transistors to which the comparison voltage is applied and each of the collectors of the differential pair of transistors, a...
5077489 Comparator circuit implemented in the bipolar and MOS technology  
An electronic comparator circuit having a high speed during switch phase and combining the advantages of bipolar technology with those of CMOS technology. The circuit consists of a differential...
5070259 Constant current, highspeed, auto-zeroed, CMOS comparator  
A constant current amplifier stage for a voltage comparator circuit includes a first CMOS transistor pair having a common gate terminal and a common drain terminal and a second CMOS transistor pair...
5065045 Multistage offset-cancelled voltage comparator  
A multistage voltage comparator having plural transfer stages between successive comparator stages. Each transfer stage includes capacitors connected between the outputs of one stage and the inputs...
5051615 Monolithic resistor comparator circuit  
A precision resistor comparator provides for the comparison and the resistive value of a first resistor with the predetermined resistive value of a second resistor. A differential comparator and...
5047667 Voltage difference detector  
A circuit is provided to detect which of a simultaneous plurality of varying input signals has the dominant maximum amplitude. Two simultaneous input signals are compared with each other; or each...
5047666 Fast sample and hold circuit configuration  
A circuit configuration includes a symmetrically constructed sample and hold amplifier. A first switchable level shifter has an input in the form of a first signal input terminal for receiving a...
5039878 Temperature sensing circuit  
In order to sense the temperature of an integrated circuit chip, a semiconductor junction device (D1) integrated on the chip is used to generate a first signal (V 1 ) having a known variation with...
5032744 High speed comparator with offset cancellation  
A regenerative latch includes a fully differential amplifier with two inputs and two outputs and two positive feedback paths, each path coupling each of the two outputs to one of the two inputs...
5010338 Comparator circuit and analog to digital converter  
A comparator circuit capable of high-speed and accurate operation is disclosed. The comparator circuit includes an amplifier section 4, an inverter 5 connected to the output of the amplifier...
4980581 Differential ECL bus tri-state detection receiver  
A circuit having first and second inputs and first and second outputs includes a differential receiver circuit responsive to the first and second inputs for providing corresponding output logic...
4962323 High speed auto zero comparator  
In accordance with the teachings of this invention, a novel auto-zero comparator is provided in which the on resistance of MOS switches serving as transfer gates used in the auto-zero mode to...
4939471 Impulse detection circuit  
An impulse detection circuit for use in triggering circuits such as those used for detecting drum beats within background noise and then triggering music synthesizers in response to the drum beat....
4935796 Device for minimizing parasitic junction capacitances in an insulated collector vertical P-N-P transistor  
A device for minimizing parasitic junction capacitances in an isolated collector vertical PNP transistor, having a terminal N connected to an epitaxial n layer, comprises a bootstrap circuit...
4916338 FET buffer amplifier  
An FET buffer amplifier circuit includes two matched FET amplifiers each consisting of an FET transistor source follower biased by a source impedance. One FET transistor source follower receives an...
4908624 Successive approximation type A/D converter  
A successive approximation type A/D converter of the present invention has a capacitor having a predetermined capacitance value and arranged between an input terminal of a voltage comparator and a...
4871931 Logic circuit resistant to errors due to supply fluctuations  
An improved logic circuit is disclosed, of the type in which one or more input signals, generated by one or more input signal generator circuits, are referenced to a threshold voltage, determined...
4868417 Complementary voltage comparator  
A complementary voltage comparator is described wherein a CMOS operational amplifier having an input stage comprising N-channel field effect transistors is coupled with a CMOS operational amplifier...
4857761 Circuit for monitoring a plurality of analog quantities  
A circuit for monitoring a plurality of analog quantities which provides signals for exceeding of threshold values and utilizes a differential amplifier. One input of the differential amplifier is...
4857768 Triple rail logic gate  
A multi-input logic gate is disclosed having particular application for use as an AND or OR gate in a digital circuit. The OR gate of the present invention includes drive, sense and reference...
4845383 High frequency voltage comparator circuit  
A voltage comparator circuit that is useful in A/D converters and D/A converters. The circuit comprises a comparison capacitor, a holding capacitor and input switching transistors. The holding...
4839769 Driver protection circuit  
A reverse battery and loss of positive supply voltage detector circuit includes a power field effect transistor for switching a stored inductive energy to the ground supply voltage terminal if...
4839605 Signal compensation circuits  
A detection system for a sliding lift or elevator door comprises at least two sensors for monitoring the door opening. The sensors are arranged to detect the presence of a moving irregular shape...
4836682 Method and apparatus for calibrating optical sensors  
A self calibrating optical sensor is described in which a time varying response signal is provided which is a function of the reflectivity of a surface being detected and the overall response of...
4827158 Output circuit used in an output stage where large current and large output amplitude are required  
An output circuit comprises first and second transistors of opposite conductivity type supplied with an input signal. The collector electrodes of the first and the second transistors are connected...
4825104 Comparator  
A comparator which sets the comparison level depending on the number of transistors used easily ascertains the relative accuracy of the load resistors, is suitable for integration and improves the...
4816701 Comparator circuit  
A comparator circuit for comparing an input signal Ein with a reference signal Vref. The comparator circuit includes an input circuit 1, a capacitor 4, first and second supply circuits 15,16, a...
4806789 Power select circuit  
A first node is connected to an external power source via a switch. A second node is connected to an internal power source whose voltage is lower than that of the external power source. The first...
4803382 Voltage comparator circuit  
In a voltage comparator circuit, among first and second signal voltages to be compared, the first signal voltage is input to a first input terminal of a differential voltage comparator through a...
4803386 Digital amplifier configuration in integrated circuits  
A digital amplifier configuration in integrated circuits for the amplification of a voltage change includes a digital amplifier. The digital amplifier couples pairs of bit lines extended beyond the...
4801817 Apparatus and method for storing video images  
An economical method for converting video images into binary form and then storing the binary representations onto disks designed for binary data. A single image will fit onto a single track of the...
4769564 Sense amplifier  
A MOS sense amplifier having a differential input and a single-ended output, and formed of only six MOS transistors. The amplifier's non-inverting input is connected to the gates of first and...
4766333 Current sensing differential amplifier  
An amplifier for a semiconductor circuit provides two circuit paths between VCC and ground, each including the source-drain path of a corresponding primary transistor. Two inpedances are coupled to...
4760286 Comparator with input offset current elimination  
A comparator circuit for use with other comparator circuits on a common resistive divider chain includes PNP input transistors operating in conjunction with a current mirror circuit, and input...
4760287 Voltage comparator circuit  
In the comparator circuit, the amplifier circuit is comprised of an inverting amplifier section having a high gain and a noninverting amplifier section having a low output impedance. Therefore, the...
4749880 Circuit for detecting level of input voltage  
A circuit for detecting the level of an input voltage is disclosed, in which the input voltage is converted into a current and this current is compared with a reference current obtained by...
4724395 Median filter for reconstructing missing color samples  
Apparatus and method for sensing sampled colored image data and thereafter interpolating the sampled colored image data to provide image data in each color sampled for each point or pixel at which...
4704546 Auctioneering circuit  
An auctioneering circuit is provided which utilizes voltage signals that are representative of current signals passing through secondary windings of current transformers. A voltage signal is...
4699520 Temperature measuring device for recording large changes in temperature  
A temperature measuring device for recording large changes in temperature, especially for recording the temperatures in an internal combustion engine. An NTC resistor is connected with a constant...
4697112 Current-mirror type sense amplifier  
There is disclosed a sense amplifier characterized by comprising a pull-up circuit. The pull-up circuit comprises a first transistor arranged between the first of a pair of output nodes and a...
4695753 Charge sensor having a preset flipflop  
The invention relates to a charge detector, more particularly for reading binary information in a CTD. The detector includes a flipflop having two cross-coupled MOS transistors and two MOS...
4692642 Active pull-up circuit controlled by a single pull-up clock signal  
An improved active pull-up circuit which can be fabricated with reduced number of elements and operate with a small power consumption. A first switch is provided between a refresh voltage terminal...
4658160 Common gate MOS differential sense amplifier  
A sense amplifier circuit for sensing the signals on input-output lines. Gate coupled and a.c. grounded pairs of transistors are used as sense amplifiers. Current mirror pairs of transistors are...
4658159 Sense amplifier circuit for semiconductor memory device  
A sense amplifier circuit for use in an MOS memory device, including bipolar sensing transistor, MOS load transistors connected to respective of the bipolar sensing transistors, and a constant...
Matches 251 - 300 out of 448 < 1 2 3 4 5 6 7 8 9 >