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| Application No. | Application Title | Issue Date |
| 20120105158 | Feedback Amplifier Provided is a feedback amplifier including: an amplification circuit unit to generate an output voltage by amplifying an input voltage inputted through an input terminal; an output circuit unit to output the generated output voltage through an output terminal; a feedbac... | 05/03/2012 |
| 20120068771 | HETEROGENEOUS INTEGRATION OF HARMONIC LOADS AND TRANSISTOR FEEDBACK FOR IMPROVED AMPLIFIER PERFORMANCE An RF power amplifier device in which the circuit is provided on two separate dies which are attached together vertically. According to one embodiment of the present invention, the RF power amplifier includes a first die including an amplifying circuit for amplifying an... | 03/22/2012 |
| 20120025914 | CMOS POWER AMPLIFIER A CMOS power amplifier includes: a first MOS transistor connected between a first power terminal and a first output stage and having a gate connected to an input stage; a second MOS transistor connected between the first output stage and a ground and having a gate conne... | 02/02/2012 |
| 20120025913 | Envelope amplifier An envelope amplifier includes an amplifier unit, a comparator unit and an output unit. The amplifier unit is made up of a first output section that outputs a first current in response to an amplitude of an input envelope signal, and a second output section. The second ... | 02/02/2012 |
| 20120019325 | CURRENT-MODE AMPLIFIER A current-mode amplifier including an input stage, a feedback circuit and an output stage is provided. The input stage has an input terminal for receiving an input current of the current-mode amplifier. The input stage generates a corresponding inner current in accordan... | 01/26/2012 |
| 20120007681 | METHOD AND SYSTEM FOR A FEEDBACK TRANSIMPEDANCE AMPLIFIER WITH SUB-40KHZ LOW-FREQUENCY CUTOFF A system for a feedback transimpedance amplifier with sub-40 khz low-frequency cutoff is disclosed and may include amplifying electrical signals received via coupling capacitors utilizing a transimpedance amplifier (TIA) having feedback paths comprising source followers... | 01/12/2012 |
| 20110304399 | Driver amplifier circuit and communication system Disclosed herein is a driver amplifier circuit, including: a first current source transistor of a first conductivity type, and a second current source transistor of the first conductivity type, control voltages being supplied to gates of the first current source transis... | 12/15/2011 |
| 20110291763 | LOW NOISE AMPLIFIER A method for low noise signal amplification includes modifying a signal by way of a first amplification stage and conveying the modified signal to a second amplification stage. The method continues with comparing an output of the second amplification stage with a signal... | 12/01/2011 |
| 20110279183 | Electronic Circuit with a Linear Amplifier Assisted by a Switch-Mode Amplifier An electronic circuit includes a linear amplifier unit having a first current feedback loop, assisted by a switched-mode amplification unit having a second current feedback loop. The inputs of the two units are connected so that they receive, at the same time, a current... | 11/17/2011 |
| 20110235455 | VOLTAGE REGULATORS, AMPLIFIERS, MEMORY DEVICES AND METHODS Circuits, devices and methods are provided, such as an amplifier (e.g., a voltage regulator) that includes a feedback circuit that supplies negative feedback through a feedback path. One such feedback path includes a capacitance coupled in series with a “one-way” is... | 09/29/2011 |
| 20110234320 | VOLTAGE OUTPUT DEVICE HAVING AN OPERATIONAL AMPLIFIER A voltage output device which is capable of preventing an increase in circuit scale and includes an offset compensation function that is suitably applicable in particular to a drive circuit for display devices such as liquid crystal display panels. The voltage output de... | 09/29/2011 |
| 20110227648 | Silicon-on-Insulator High Power Amplifiers Illustrative embodiments of a power amplifier are disclosed which include a plurality of amplifier cells, each having an input and an output. The plurality of amplifier cells are formed on a semiconductor substrate such that the outputs of the plurality of amplifier cel... | 09/22/2011 |
| 20110221532 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND COMMUNICATION SYSTEM According to an embodiment, a semiconductor integrated circuit device includes an amplifier and a feedback circuit. The amplifier includes an input terminal receiving an input signal and an output terminal outputting an output signal. The feedback circuit includes a fir... | 09/15/2011 |
| 20110204979 | CONSTRUCTIVE FEEDBACK TRAVELING WAVE DEVICE AND METHOD An apparatus and method include a transmission line carrying a propagating signal between an inlet port and an outlet port. The propagating signal can include a forward traveling wave and optionally a backward traveling wave. A feedback stage samples a the propagating s... | 08/25/2011 |
| 20110181271 | PEAKING CIRCUIT, PEAKING CIRCUIT CONTROL METHOD, WAVEFORM MEASUREMENT APPARATUS, AND INFORMATION PROCESSING APPARATUS A peaking circuit according to the present invention includes amplifiers connected in multiple stages and feedback circuits for feedback to an input from two or more output points with different gains as seen from the input. The peaking circuit is configured to be able ... | 07/28/2011 |
| 20110169568 | OPERATIONAL AMPLIFIER The present invention relates generally to an operational amplifier. In one embodiment, the present invention is an operational amplifier including a transimpedance input stage, the transimpedance input stage including a first stage connected to a first resistor and a s... | 07/14/2011 |
| 20110169573 | AMPLIFIER CIRCUIT WITH STEP GAIN A step gain amplifier has an amplifier with an input and an output, and a bias circuit connected to the input and to a bias node. A passive feedback circuit using only passive elements connects the output to the input. A control circuit is connected to the bias circuit ... | 07/14/2011 |
| 20110156818 | METHOD OF USING INTEGRATED POWER AMPLIFIER An output-impedance in a power amplifier is provided. A first transistor QBUF of a buffer stage is connected to a first side of a resistor RF and a second transistor QAMP to a second opposite side of the resistor RF. The first... | 06/30/2011 |
| 20110143685 | Multiband Low Noise Amplifier (LNA) With Parallel Resonant Feedback A multiband low noise amplifier (LNA) with parallel resonant feedback includes an amplifier element configured to receive a radio frequency (RF) signal at an RF input and provide an amplified version of the RF signal at an RF output, a resistive feedback circuit coupled... | 06/16/2011 |
| 20110084766 | WIDEBAND ACTIVE CIRCUIT WITH FEEDBACK STRUCTURE A broadband active circuit with a feedback structure includes: an active load unit providing a load varied according to a control voltage; an active circuit unit connected between the active load unit and a ground and outputting a signal corresponding to a pre-set bandw... | 04/14/2011 |
| 20110063035 | CONTROLLED-GAIN WIDEBAND FEEDBACK LOW NOISE AMPLIFIER Provided is controlled-gain wideband feedback low-noise amplifier. The controlled-gain wideband feedback low-noise amplifier includes: a feedback amplifier configured to isolate an input signal and an output signal obtained by amplifying the input signal, feed back the ... | 03/17/2011 |
| 20110007909 | CLASS H AMPLIFIER A class H amplifier circuit includes a Buck converter 20 and a charge pump 30 which are used to generate voltages which are used in turn to power an output driver 10. A feedback path 36 controls the loop. The circuit is particularly suitable ... | 01/13/2011 |
| 20110001497 | FLOATING FRONT-END AMPLIFIER AND ONE-WIRE MEASURING DEVICES A follower amplifier with power supply biased by a controlled voltage source such that the power supply potentials are, for the frequencies of interest, as close as possible to the potential of the follower output. There is proposed a front-end electronic circuit for bi... | 01/06/2011 |
| 20100308919 | Methods and devices for leakage current reduction Methods and devices for leakage current reduction are described. A regulator transistor is connected to a switch to bias the transistor with a first voltage during an ON state and a second voltage during the OFF state of the transistor. The switchable bias allows leakag... | 12/09/2010 |
| 20100201449 | AMPLIFIER An amplifier including a first transistor including a gate coupled to an input terminal and a grounded source; a load resistor provided between a drain of the first transistor and a power supply; an output terminal coupled to a node between the drain of the first transi... | 08/12/2010 |
| 20100148875 | CIRCUIT FOR COMPENSATION OF LEAKAGE CURRENT-INDUCED OFFSET IN A SINGLE-ENDED OP-AMP An electronic device includes an operational amplifier, with the operational amplifier having an amplifier input stage coupled with a first output node to an amplifier output stage. A compensation capacitance is connected between an output node of the amplifier output s... | 06/17/2010 |
| 20100109775 | SEMICONDUCTOR DEVICE HAVING RESISTORS WITH A BIASED SUBSTRATE VOLTAGE To eliminate the substrate voltage dependences of the respective resistance values of resistor elements, in the resistor elements coupled in series to each other over respective substrate regions, the ends of the resistor elements are coupled to the corresponding substr... | 05/06/2010 |
| 20100102845 | Proportional Regulation for Optimized Current Sensor Performance An integrated circuit device comprises a first transistor having a gate coupled to an output of a first operational amplifier, a second transistor having a threshold voltage proportional to a threshold voltage of the first transistor, the second transistor having a gate... | 04/29/2010 |
| 20100097139 | ERROR CORRECTION SYSTEM FOR A CLASS-D POWER STAGE The present invention relates to a method for correcting for a source of non-linearity and noise introduced in a switching power amplification stage during power amplification of a pulse-modulated reference signal from a pulse modulator, where the method comprises the f... | 04/22/2010 |
| 20100052791 | AMPLIFIER CIRCUIT An amplifier circuit including: a multistage amplifier unit including an input-stage transistor and an output-stage transistor and configured to amplify an input signal and to output an amplified signal; and a feedback unit including a first feedback transistor, a secon... | 03/04/2010 |
| 20100052790 | AMPLIFIER CIRCUIT An amplifier circuit includes a first amplifier amplifying an input signal and outputting a first amplified signal, a second amplifier amplifying the first amplified signal and outputting a second amplified signal, and a feedback circuitry feeding back the second amplif... | 03/04/2010 |
| 20090315624 | ACTIVE RESISTOR USED IN A FEEDBACK AMPLIFIER PARTICULARLY USEFUL FOR PROXIMITY COMMUNICATION An active resistor and its use in a negative feedback amplifier allow wide voltage swings on the input and output signals. One embodiment includes parallel pass-gate MOS transistors of opposite conductivity types connected between the input and output nodes. Bootstrappi... | 12/24/2009 |
| 20090251219 | Amplifier Arrangement and Signal Generation Method An amplifier arrangement includes an output amplifier stage (OA) comprising a stage input (SIN), a stage output (SOUT) which is coupled to a signal output (OUT) of the amplifier arrangement, and a capacitive element (CE) which couples the stage output (SOUT) to the stag... | 10/08/2009 |
| 20090231042 | Broadband Power Amplifier with A High Power Feedback Structure A broadband power amplifier using a novel high power feedback structure is disclosed in this patent. Feedback is widely used in amplifier design to broaden the bandwidth of the amplifier. Traditionally, the feedback resistor is either an axial resistor placed over the t... | 09/17/2009 |
| 20090108940 | Amplifier An amplifier comprises an input terminal that inputs an AC voltage signal; an amplifying unit having a transistor for amplifying the input AC voltage signal; a current detecting unit connected internally of said amplifying unit; and a control-current source controlled b... | 04/30/2009 |
| 20090102563 | Transimpedance amplifier The present invention solves characteristic deterioration caused by peaking and a ground inductance, and provides a transimpedance amplifier capable of achieving a higher gain and a wider band. For this purpose, the transimpedance amplifier is configured to include a fe... | 04/23/2009 |
| 20090033483 | Amplifier for Multi-Use of Single Environmental Sensor A detection system in which a single sensor is employed to detect an extensive range of a parameter The output signal from the sensor is fed to the input of the electrical circuit, having a feedback loop, wherein the electrical circuit has a non-linear transfer characte... | 02/05/2009 |
| 20090013800 | FLOWMETER OF THE CORIOLIS TYPE Coriolis mass flowmeter with a Coriolis tube and with an optical detection device, which optical detection device comprises at least one optical sensor for generating a signal that is representative of the movement of the Coriolis tube, said optical sensor comprising a ... | 01/15/2009 |
| 20090009255 | Unilateral feedback power amplifier and method for realizing the same A unilateral feedback power amplifier utilizes new feedback techniques and devices to make the amplified high-frequency signal unilateral, let the output power, power gain and impedance matching simultaneously accomplish the optimal values, and enhance the stability of ... | 01/08/2009 |
| 20080284520 | System And Method For Power Detection In A Power Amplifier A system for detecting power output of a power amplifier includes a first power detector configured to detect a forward power output of a power amplifier, the first power detector configured to provide a first power detector output, and a second power detector configure... | 11/20/2008 |
