Class 327/416 - Field-effect transistor

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter wherein at least one path includes a unipolar
No. of patents: 39
Last issue date: 01/04/2011

Number	Title	Issue Date
7863964	Level shifting switch driver on GaAs pHEMT A radio frequency semiconductor switching device (S) is formed on an MMIC structure (C) including a switching circuit element (12) having four semiconductor switching units (68, 70) with each adapted for receiving a gate control signal. A level shift c...	01/04/2011
7626443	Switching circuit, switching module and method of controlling the switching circuit A switching circuit includes switching transistors connected to one of an input terminal and an output terminal of the switching circuit, and a control bias supply circuit that supplies a control bias for cutting off all the switching transistors to the switching tr...	12/01/2009
7298197	Multi-phase DC-DC converter with shared control An increasing number of phases in multiphase converters causes an increase in requirements with respect to the control IC. According to the present invention, instead of deriving a new PWM signal for every single phase of the DC-DC converter, the single phases are c...	11/20/2007
7274246	Switching circuit using multiple common-drain JFETs for good heat dissipation capability and small PCB layout area A switching circuit uses multiple common-drain JFETs to serve as the low-side switches of the switching circuit, and each of the low-side JFET is coupled between a high-side switch and a power node. Since a JFET can endure high voltage at both drain side and source ...	09/25/2007
7221207	Semiconductor switching circuit for switching the paths of a high frequency signal in a mobile communications unit A semiconductor apparatus is provided which makes it possible to reduce the number of control terminals required for switching through paths of a high frequency signal, simplify the circuit configuration for controlling the terminals, improve an isolation characteri...	05/22/2007
7088139	Low power tri-level decoder circuit A tri-level decoder circuit includes a first decoder circuit and a second decoder circuit. The first decoder circuit is configured to compare an input voltage to a first threshold, and the second decoder circuit is configured to compare the input voltage to a second...	08/08/2006
7068107	Variable gain amplifier The variable gain amplifier of the present invention includes at least an operation amplifier. By choosing one of output stages, a feedback resistor is selected and the gain of the variable gain amplifier is decided according to the resistance of the selected feedba...	06/27/2006
6906569	Digital signal delay device The invention relates to a digital signal delay device (101) for converting a signal (IN) into a corresponding delayed signal (OUT), comprising a plurality of signal delay elements (103a, 103b, 103c) connected in seri...	06/14/2005
6891426	Circuit for providing multiple voltage signals A method of providing multiple voltage outputs includes receiving an input signal from a multifunctional pump. The method also includes sending a first output signal based on the input signal using a first switch and sending a second output signal based on the input...	05/10/2005
6867635	Expandable multiport transfer switch A transfer switch having a test signal input and first and second ports. The transfer switch includes a first routing switch and first and second port termination switches. The first routing switch has a routing switch input for receiving the test signal input and f...	03/15/2005
6737890	Switching circuit device A switching circuit device has a first FET and a second FET, and operates with single control terminal. The device also has a common input terminal connected to the drain or source electrode of the two FETs, a first output terminal and a second output terminal conne...	05/18/2004
6633196	Device and method for limiting the extent to which circuits in integrated circuit dice electrically load bond pads and other circuit nodes in the dice An integrated circuit die includes a bond pad connected to first and second input buffers in the die through laser fuses. In one operating configuration of the die, the die uses the first input buffer but does not use the second input buffer, so the laser...	10/14/2003
6583740	Calibrated current source A calibrated current source includes current source having an output node; a calibration circuit; a load circuit; a cascode switching circuit including a pair of cascode switches, one connected between the local circuit and output node, the other connecte...	06/24/2003
6480055	Decoder element for generating an output signal having three different potentials and an operating method for the decoder element A decoder element is provided with an output, whereby an output signal with one of three different possible potentials is produced. The output signal may have a value of either a first potential, a second potential, and a third potential, where the second...	11/12/2002
6420981	Oversampling circuit and method An oversampling circuit and method is proposed, which is used for converting an input serial data stream into a parallel data format. The proposed oversampling circuit comprises an array of transmission gates arranged into N cascaded stages of main sampli...	07/16/2002
6377084	Pseudo-differential amplifiers Single input receivers and "pseudo differential" amplifiers can conserve scarce chip surface area and still provide fast response times in a low power CMOS environment. A first embodiment includes a single ended receiver. The single ended receiver include...	04/23/2002
6304111	CMOS switch circuit having concurrently switching complementary outputs independent from process variation A CMOS switch circuit includes a first stage having PMOS and NMOS transistors arranged and properly sized to provide substantially concurrently switching complementary outputs, and a second stage having PMOS and NMOS transistors arranged and related to co...	10/16/2001
6130570	MESFET circuit utilizing only positive power supplies A biasing system for an FET utilizes a source biasing capacitor which is charged to a positive DC ground voltage relative to RF ground. The gate of the FET is thus biased negative to the source without requiring a negative power supply....	10/10/2000
6121809	Accurate and tuneable active differential phase splitters in RFIC wireless applications A differential phase splitter circuit for producing opposite phase signals from an input AC signal is provided. A first and second transistor is provided. The source of these transistors are connected to a common first node. Further, these transistors act...	09/19/2000
6114923	Switching circuit and semiconductor device Disclosed is a switching circuit which has: at least one unit circuit connected in series, the unit circuit being composed of two field-effect transistors connected in series and an inductor that has one end connected to a connection point between the two...	09/05/2000
6087887	Signal routing circuits having selective high impedance and low impedance output states A dual-purpose transmission circuit capable of receiving two or more signals or voltages, or a signal and a voltage, using one input pad, and an input method using the circuit. The dual-purpose transmission circuit includes an internal signal line for tra...	07/11/2000
5910747	Method for optimization of multi-level interconnect RC delay A method is herein provided for placing drivers and repeaters along the interconnect so as to optimize interconnection propagation delay with respect to area and time constraints. The method provided optimizes the propagation delay and simplifies the prop...	06/08/1999
5856754	Semiconductor integrated circuit with parallel/serial/parallel conversion The semiconductor integrated circuit of this invention includes: a first converter for converting a plurality of input data signals into a composite serial data signal and outputting the composite serial data signal; a second converter for receiving the c...	01/05/1999
5668494	Circuit and method for driving alternatively electric loads with low impedance An electronic driver circuit for low-impedance loads, being of a type which comprises an input terminal (IN) to which a voltage signal (Vin) is applied for alternate transfer to an output, and a plurality of output terminals (OUTi), each connected to a co...	09/16/1997
5640117	Digital signal transmission circuit A digital signal transmission circuit for transmitting an input pulse signal to receiving circuits through transmission lines. The digital signal transmission circuit is provided with a phase converting circuit for outputting a first output signal and a s...	06/17/1997
5635865	Power driving circuit of a thin film transistor liquid crystal display A power driving circuit of a thin film transistor liquid crystal display includes Darlington circuits for generating voltages corresponding to the gate driving voltages required in the displays. Analog switching circuits control the application of voltage...	06/03/1997
5631595	Voltage signal line driver comprising a push-pull bridge amplifier A line driver having two halves arranged in a push-pull configuration. Each half has a pass transistor, connected between a power supply rail and an output terminal, and an amplifier with an output coupled to the output terminal. Only one of the pass tran...	05/20/1997
5559462	Digital signal transmission circuit A digital signal transmission circuit for transmitting an input pulse signal to receiving circuits through transmission lines. The digital signal transmission circuit is provided with a phase converting circuit for outputting a first output signal and a s...	09/24/1996
5508650	Dual feature input/timing pin An apparatus for enabling an IC pin to function in a dual mode, which apparatus includes a first switch for coupling the IC pin to an input terminal when the IC pin operates in an input mode, and a charging circuit for sourcing current to the IC pin durin...	04/16/1996
5504745	Switching cell transmission device employing dual gate FET's as one-way RF switching element The present invention relates mainly to distribution and/or processing devices for RF signals, in particular devices of the following types: signal combiner, signal splitter or divider, time multiplexer, time demultiplexer, frequency multiplexer, amplifie...	04/02/1996
5497118	Signal selector circuit and signal-generating circuit The invention is intended to offer a signal selector circuit and a signal-generating circuit which are excellent in linearity between input and output signals at high frequencies and in isolation between input signals and isolation between output signals ...	03/05/1996
5420529	Current steering switch and hybrid BiCMOS multiplexer with CMOS commutation signal and CML/ECL data signals A current steering switch circuit responsive to a CMOS signal. In an specific embodiment the switch is incorporated in a hybrid BiCMOS multiplexer circuit using combined CMOS and CML/ECL signal types. The high speed CML/ECL logic signals are multiplexed u...	05/30/1995
5420534	Programmable NxM switching system with charge-coupled device multiplexer A programmable analog N×M switching network that includes a charge-coupled-device (CCD) multiplexer switch means having a plurality of N input leads. The input leads contain signals from typical devices such as video cassette recorders, televisions, vide...	05/30/1995
5089718	Dynamic current divider circuit with current memory Dynamic accurate current divider which comprises current memory circuits (M2-C1-S3, M3-C2-S4) by means of which an input current (Iin) to be split up is divided into two almost equally large output currents (Iout1, Iout2). Under the control of a clock gen...	02/18/1992
5003246	Monolithic bidirectional switch with power MOS transistors A single-chip solid-state bidirectional switch comprises two power MOS transistors (TP1, TP2) connected by their drains (D1, D2), and the sources of which (S1, S2) constitute the main terminals (A1, A2) of the switch; two auxiliary MOS transistors (T1, T2...	03/26/1991
4813041	Very low power analog multiplexers An analog multiplexer with N variables (or control signals) is provided, the configuration of which is defined by a number of controlled switches in series per channel and per input parameter (or per input) which is equal to K, K being defined by the rati...	03/14/1989
4677323	Field-effect transistor current switching circuit An MOS current steering circuit (10) includes a current mirror arrangement with an input branch (12) and an output branch (16). In the input branch, the conduction channels of a current-limiting transistor (M1) and a current mirror input transistor (M3) a...	06/30/1987
4229702	Circuit for detecting the relative occurrence of one signal among a plurality of signals A circuit for detecting the relative time of occurrence of first and second signals applied to first and second terminals includes a pair of bistable flip-flops. In response to the occurrence first of the first signal the first one of the flips-flops is s...	10/21/1980
4076986	Device for reproducing the charge stored in an input capacitor in a plurality of output capacitors Arrangement allowing an input bucket brigade (BBD) stage to feed several other BBD stages in parallel with no loss of the signal transferred from the input stage to the subsequent ones. An input voltage corresponding to a charge quantity is stored in the ...	02/28/1978

PatentStorm

Quotables

PatentStorm News

Class 327/416 - Field-effect transistor