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| Application No. | Application Title | Issue Date |
| 20120129478 | FEEDFORWARD AUTOMATIC GAIN CORRECTION An automatic gain control circuit is provided for an input signal in the form of a dc reference level and a superposed amplitude modulated ac data signal. A feedforward AGC loop has a low pass filter for deriving the level of attenuation from the attenuated dc reference... | 05/24/2012 |
| 20120126892 | REFERENCE VOLTAGE GENERATOR FOR BIASING AN AMPLIFIER A method generates a reference voltage by steps including: generating a reference signal from a voltage source; generating a comparison signal of the reference signal with a voltage reference; sampling the comparison signal; adjusting a numerical value as a function of ... | 05/24/2012 |
| 20120105150 | Joint optimisation of supply and bias modulation A radio frequency amplifier system is disclosed in which the amplifier bias supply and power supply voltages are instantaneously modulated with signals derived from the envelope voltage of the input signal. Separate non-linear mapping functions are used to derive the su... | 05/03/2012 |
| 20120068767 | Power supply arrangement for multi-stage amplifier There is disclosed a multi-stage amplifier comprising: a first amplifier stage; a second amplifier stage; a first voltage supply stage arranged to provide a supply voltage to the first amplifier in dependence on an average power of a signal to be amplified; and a second... | 03/22/2012 |
| 20120049953 | MULTI-MODE/MULTI-BAND POWER MANAGEMENT SYSTEM A power management system for a radio frequency (RF) power amplifier (PA) load is disclosed. The power management system includes a first switching power supply that is adapted to output a relatively constant voltage, an electronic switch for selectively coupling the fi... | 03/01/2012 |
| 20120049954 | AMPLIFICATION CIRCUIT WITH LOW QUIESCENT CURRENT The embodiments of the present circuit and method disclose an amplification circuit including a voltage regulator, a negative charge pump and an amplifier. The output of the voltage regulator supplies the upper voltage supply of the amplifier and the output of the negat... | 03/01/2012 |
| 20120045076 | ELECTRONIC CIRCUIT FOR DRIVING A SWITCHING AMPLIFIER An electronic circuit is disclosed for driving a switching amplifier. The electronic circuit is configured for generating, when operating in a switch-on mode, a driving signal for driving the switching amplifier. The driving signal carries a plurality of pulses having: ... | 02/23/2012 |
| 20120038418 | dB-LINEAR VOLTAGE-TO-CURRENT CONVERTER A dB-linear voltage-to-current (V/I) converter that is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one a... | 02/16/2012 |
| 20120025917 | Efficient amplification stage This is disclosed an amplification stage including a first amplifier stage, a second amplifier stage, and a power supply unit, in which the output of the first stage provides the input to the second stage, and the power supply unit provides a power supply for both ampli... | 02/02/2012 |
| 20120019319 | Amplitude Error De-Glitching Circuit and Method of Operating A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circu... | 01/26/2012 |
| 20120021695 | Method and Apparatus for Improving Efficiency in a Power Supply Modulated System A radio is presented that has a processor, memory, modulator and a power amplifier. An envelope of a signal to be transmitted is used by the processor to control modulation of the voltage of the power amplifier by the modulator between a desired minimum voltage and a de... | 01/26/2012 |
| 20120021708 | METHOD AND APPARATUS FOR ALARMING IN A POWER SUPPLY MODULATED SYSTEM A communication device is presented that has different processors and a power amplifier. One of the processors receives a signal from a monitor and indicates that an alarm exists to a diagnostics module. The other processor uses the envelope signal of the input signal t... | 01/26/2012 |
| 20120013400 | Current Control Circuit, Class AB Operational Amplifier System and Current Control Method A current control circuit for controlling a bias current of a class AB operational amplifier includes: a low current source, for generating a low bias current; a high current source, for generating a high bias current, which is greater than the low bias current; and a c... | 01/19/2012 |
| 20120001688 | TRANSMISSION POWER CONTROL METHOD AND TRANSMISSION POWER CONTROL APPARATUS When switching the mode of a power amplifier between a compressed mode and an uncompressed mode, an accurate transmission power control is realized. A transmission power control method includes calculating an intra-mode output power error from a power setting value in a... | 01/05/2012 |
| 20120001693 | POWER AMPLIFIER AMPLITUDE MODULATOR SYSTEM AND METHOD A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated curre... | 01/05/2012 |
| 20110316623 | METHOD FOR AMPLIFYING A SIGNAL BY A POWER AMPLIFIER, POWER AMPLIFIER SYSTEM, DEVICE, COMPUTER PROGRAM PRODUCT, AND DIGITAL STORAGE MEDIUM THEREOF The invention relates to a method for amplifying a carrier signal (CS1) by using a power amplifier (PA1), the power amplifier (PA1) is feed with a supply voltage (PASV1) of a power supply (SMPS1). The method comprises the step of adapt... | 12/29/2011 |
| 20110316622 | ELECTRONIC CIRCUIT An electronic circuit includes an amplifier that amplifies an input signal, a control circuit configured to generate a control signal by averaging an output signal of the amplifier based on a time constant, a first time constant control circuit configured to generate a ... | 12/29/2011 |
| 20110304390 | COMPENSATION DEVICE APPLIED TO POWER AMPLIFIER, METHOD FOR DETERMINING PRE-DISTORTION OF POWER AMPLIFIER, AND METHOD FOR COMPENSATING LINEARITY OF POWER AMPLIFIER THEREOF A method for determining pre-distortion of a power amplifier includes the following steps: providing a first power input signal to make the power amplifier generate a first power output signal; receiving a first receiving signal, which is acquired according to the first... | 12/15/2011 |
| 20110298537 | VOLTAGE DISTRIBUTION FOR CONTROLLING CMOS RF SWITCH Disclosed are voltage distribution device and method for controlling CMOS-based devices for switching radio frequency (RF) signals. In certain RF devices such as mobile phones, providing different amplification modes can yield performance advantages. For example, a capa... | 12/08/2011 |
| 20110298538 | APPARATUS AND METHOD FOR CURRENT SENSING USING A WIRE BOND An apparatus for sensing power amplifier current includes a system voltage source that is used to develop a reference voltage, a wire bond structure connected between the system voltage source and a power amplifier, where a sense voltage developed across the wire bond s... | 12/08/2011 |
| 20110291755 | TRANSMISSION POWER CONTROL METHOD AND TRANSMISSION POWER CONTROL APPARATUS When switching the mode of a power amplifier between compressed mode and uncompressed mode, accurate transmission power control is realized. A transmission power control method includes setting a power setting value of mode to switch to, such that an inter-mode output p... | 12/01/2011 |
| 20110285461 | MOBILE TERMINAL AND METHOD OF CONTROLLING A DRIVING VOLTAGE OF A POWER AMPLIFIER THEREIN A mobile terminal and method of controlling a driving voltage of a power amplifier therein are provided. The present invention includes a power amplifier module having a plurality of operative modes, the power amplifier module configured to amplify a power strength of a... | 11/24/2011 |
| 20110285462 | METHOD AND SYSTEM FOR AMPLITUDE CALIBRATION FOR POLAR MODULATION WITH DISCONTINUOUS PHASE Aspects of a method and system for amplitude calibration for polar modulation with discontinuous phase may include amplifying a signal via a plurality of amplifiers such that a combined gain of the plurality of amplifiers comprises a coarse amplitude gain, an amplitude ... | 11/24/2011 |
| 20110279179 | APPARATUS AND METHOD FOR CONTROLLING POWER AMPLIFIER An apparatus for controlling a power amplifier configured to amplify radio frequency (RF) signal includes a detector and a controller. The detector is configured to detect a power level of the RF signal with respect to a predetermined power threshold and to generate a c... | 11/17/2011 |
| 20110271756 | Driver circuit for a measuring transducer as well as measuring system formed therewith A driver circuit comprises: a voltage controller (UCD), which delivers a direct voltage (UPD) to a controller output; a direct voltage converter (DC/DC), to which is applied on the primary side the direct voltage (UPD) delivered from the... | 11/10/2011 |
| 20110260791 | Power Amplifier A pre-driver for an amplifier comprising a load network in which the following elements are connected in the following order: a resistor-an inductor-a capacitor. Also described are a power amplifier comprising such a pre-driver, a method of fabricating a pre-driver for ... | 10/27/2011 |
| 20110256838 | METHODS FOR DETERMINING OPTIMUM POWER SUPPLY VOLTAGES FOR RADIO-FREQUENCY POWER AMPLIFIER CIRCUITRY Electronic devices with wireless communications capabilities are provided. The electronic device may include storage and processing circuitry, power amplifier circuitry, power supply circuitry, etc. The storage and processing circuitry may direct the power amplifier cir... | 10/20/2011 |
| 20110241776 | INFORMATION HANDLING SYSTEM PORT SECURITY A port securing module includes a power gate that is operable to be coupled in series to a power source and to a load. A resistor is coupled in parallel to the power gate. An operational amplifier includes an inverting input and a non-inverting input that couple the ope... | 10/06/2011 |
| 20110241775 | POWER AMPLIFYING DEVICES A radio frequency amplifier amplifies a modulation signal or its phase modulation component and outputs the resultant signal. A linear amplifier adds an output voltage to a power supply voltage supplied to the radio frequency amplifier, amplifies a difference between th... | 10/06/2011 |
| 20110234313 | Apparatus and Method for Operating Parameter-Dependent Gain Adjustment in Radio Devices An amplifier for an input signal Sin, present at an input terminal, with a gain factor adjustable by a control terminal, so as to provide the amplified input signal Sin′ at an output terminal. A decoupler is connected to the amplifier on the outp... | 09/29/2011 |
| 20110227654 | POWER AMPLIFYING APPARATUS AND POWER AMPLIFYING METHOD A power amplifying apparatus according to an embodiment includes a first amplifying unit having a first amplifying element to amplify an input signal, a second amplifying unit having a second amplifying element to amplify an output signal from the first amplifying unit;... | 09/22/2011 |
| 20110221533 | AMPLIFIER CIRCUIT AND METHOD OF AMPLIFYING A SIGNAL IN AN AMPLIFIER CIRCUIT There is provided an amplifier circuit, comprising: an input, for receiving an input signal to be amplified; a power amplifier, for amplifying the input signal; a switched power supply, having a switching frequency, for providing at least one supply voltage to the power... | 09/15/2011 |
| 20110218020 | SYSTEM AND METHOD FOR POWER AMPLIFIER CONTROL SATURATION DETECTION AND CORRECTION A system for power amplifier control saturation detection and correction includes a comparator configured to receive a power control signal and a detected power signal and generate a regulated voltage, a power amplifier configured to receive the regulated voltage and de... | 09/08/2011 |
| 20110193629 | TRACKING POWER SUPPLY, METHOD FOR CONTROLLING POWER SUPPLY, AND COMMUNICATION APPARATUS A tracking power supply, a method for controlling a power supply, and a communication apparatus are disclosed. The tracking power supply includes: a basic voltage output unit, configured to provide a basic voltage; and a compensation voltage output unit, configured to p... | 08/11/2011 |
| 20110193630 | Systems and Methods of RF Power Transmission, Modulation, and Amplification, Including Blended Control Embodiments Embodiments of the present invention enable a blended control approach to generate a desired output waveform in an outphasing-based system. Embodiments of blended control according to the present invention combine outphasing with bias and/or amplitude control to yield a... | 08/11/2011 |
| 20110193628 | CIRCUIT AND METHOD OF TEMPERATURE DEPENDENT POWER AMPLIFIER BIASING A circuit and method are provided for reducing dynamic EVM of a power amplifier (PA) used for RF communication. A temperature dependent boost bias signal is applied to the bias input port of amplifier circuitry of the PA in dependence upon a temperature of the amplifier... | 08/11/2011 |
| 20110187452 | SOUND AND MUSIC PLAYBACK DEVICE A sound and music playback device includes: an output amplifier; a power supply circuit that supplies electric power to the output amplifier; and an output signal level judging circuit; wherein an output voltage value of the power supply circuit is changed based on a le... | 08/04/2011 |
| 20110140777 | RF Power Amplifier Controller Circuit Including Calibrated Phase Control Loop An RF power amplifier system comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal indicating the amplitude difference between the amplitude o... | 06/16/2011 |
| 20110133834 | POWER AMPLIFIER There is provided a power amplifier with a variable supply of bias power according to a look-up table having a voltage value determined based on a level of an RF signal being input to the power amplifier to thereby increase power efficiency. A power amplifier according ... | 06/09/2011 |
| 20110115557 | AMPLIFYING APPARATUS An amplifying apparatus includes an amplifier that amplifies a signal, using a voltage supplied; a power source unit that generates a first voltage and a second voltage having an amplitude greater than that of the first voltage; and a switching controller that, when the... | 05/19/2011 |
