Match Document Document Title
US20100327968 OPTIMISING OPERATING TEMPERATURE IN A POWER AMPLIFIER  
Method and system for optimising operating temperature in a power amplifier of a base station of a cellular telecommunications network. The system comprises: a power amplifier of a BTS the power...
US20150130536 MIXER  
A mixer comprising a ladder having at least two resistances arranged in series and an input configured to receive an input signal and apply it across the ladder, said ladder including an output...
US20140217960 SELF-ADAPTING VOLTAGE AMPLIFIER AND BATTERY CHARGER DETECTION  
An amplifier applies a self-adapting voltage to an output terminal. A bias circuit provides a greater bias current in a first external connection condition, in the absence of a pull-up resistance...
US20120081182 BROADBAND HIGH POWER AMPLIFIER  
A broadband high power amplifier architecture is disclosed. One example configuration includes a first plurality of distributed amplification cells connected in a first string, wherein a...
US20130229232 Amplifier Bandwidth Extension for High-Speed Tranceivers  
There is presented a high bandwidth circuit for high-speed transceivers. The circuit may comprise an amplifier combining capacitor splitting, inductance tree structures, and various bandwidth...
US20120326788 Amplifier Bandwidth Extension for High-Speed Tranceivers  
There is presented a high bandwidth circuit for high-speed transceivers. The circuit may comprise an amplifier combining capacitor splitting, inductance tree structures, and various bandwidth...
US20150109057 RESISTIVE LADDER  
A resistive ladder has first, second and third resistors coupled in series between first and second voltage terminals. A first node of the first resistor is coupled to the first voltage terminal...
US20140301570 Voice Alarm Amplifier  
An emergency message output amplifier includes a plurality of audio output channels. Channels can be combined together to increase output power, and can be isolated from respective output speakers...
US20150048887 AMPLIFIER CIRCUIT  
An amplifier circuit is configured in such a manner that the withstand voltage between the terminals of a FET 2 (withstand voltage B) is higher than the withstand voltage between the terminals of...
US20150194935 AMPLIFIER  
An amplifier includes a first FET having a first back-gate end, a second FET having a second back-gate end, a third FET having a third back-gate end, a first power supply terminal configured to...
US20140347134 BANDWIDTH-EXTENDED DOHERTY POWER AMPLIFIER  
The present invention provides a new structure of Doherty power amplifier. The present invention reduces use of ΒΌ wavelength lines and lowers the Q point of the Doherty power amplifier. The...
US20140094129 MULTI-MODE POWER AMPLIFIER  
A multi-mode power amplifier includes a high-power mode amplifier circuit, a mid-power mode amplifier circuit, and a low power amplifier circuit, where the low-power mode amplifier circuit...
US20130130750 MULTI-MODE POWER AMPLIFIER  
A multi-mode power amplifier includes a high-power mode amplifier circuit, a mid-power mode amplifier circuit, and a low power amplifier circuit, where the low-power mode amplifier circuit...
US20130009708 WIDEBAND DOHERTY AMPLIFIER CIRCUIT WITH IMPEDANCE COMBINER  
An amplifier circuit includes a first amplifier operable to turn on at a first power level, a second amplifier operable to turn on at a second power level below the first power level and a third...
US20130249634 POWER AMPLIFIER WITH AN ADAPTIVE BIAS  
An electronic circuit, including, a power amplifier adapted to amplify an RF signal and provide it as output from the integrated circuit; a power source that is adapted to provide an unregulated...
US20110068873 RF Power Amplifiers with Linearization  
Designs and techniques associated with power amplifiers for amplifying RF signals to provide variable power amplification and improved linearity in various RF amplification circuits, including...
US20120142304 Power Amplifiers for Wireless Systems  
A wireless transceiver may include a power amplifier that uses an envelope tracker. The envelope tracker may include stacked buck switching supply modulators, each having two different supply...
US20130099858 DUAL PRIMARY SWITCHED TRANSFORMER FOR IMPEDANCE AND POWER SCALING  
This application reduces the power of series combined transformers and of parallel combined transformers while maintaining efficiency. In one embodiment, a series combined transformer is provided...
US20140035679 Power Amplifier Device and Power Amplifier Circuit Thereof  
The present invention relates to a power amplifier apparatus and power amplifier circuit thereof, and the power amplifier circuit uses the Doherty circuit structure, and the power amplifier...
US20150048888 ASSEMBLY STRUCTURE OF POWER AMPLIFIER  
An assembly structure of a power amplifier is provided. The assembly structure comprises at least two power amplifier modules, each power amplifier module comprises a heat-conducting board, an...
US20120299649 MULTI-TIER POWER SUPPLY FOR AUDIO AMPLIFIERS  
Techniques for providing multiple power supplies in electronic devices are disclosed. According to one aspect of the present invention, an appropriate power supply is provided only to accommodate...
US20150214896 SYSTEMS AND METHODS FOR COMBINING POWER THROUGH A TRANSFORMER  
A system for combining power includes a plurality of branches and a secondary winding. The plurality of branches are configured to provide branch power. Each of the branches contribute to the...
US20130314153 COLLECTOR BOOST  
Embodiments of power amplification devices are described that include a power amplification circuit, a first voltage regulation circuit, and a second voltage regulation circuit. The voltage...
US20130027130 COLLECTOR BOOST  
Embodiments of power amplification devices are described with a power amplification circuit that has more than one amplifier stage and with at least a first voltage regulation circuit and a second...
US20140354354 NANOVOLT AMPLIFIER DESIGN  
A circuit can include operational amplifier having a first input, a second input, and an output, first and second resistors in series between the output of the op-amp and a ground, and multiple...
US20140266460 Scalable Periphery Tunable Matching Power Amplifier  
A scalable periphery tunable matching power amplifier is presented. Varying power levels can be accommodated by selectively activating or deactivating unit cells of which the scalable periphery...
US20120293251 DOHERTY POWER AMPLIFIER AND IMPLEMENTATION METHOD THEREOF  
A Doherty power amplifier and an implementation method thereof are disclosed. The Doherty power amplifier includes a carrier power amplifier circuit and a peak power amplifier circuit, wherein,...
US20130021094 CIRCUIT FOR OPTIMIZING A POWER MANAGEMENT SYSTEM DURING VARYING LOAD CONDITIONS  
A circuit for optimizing a power management system. The circuit includes a first amplifier. The first amplifier is responsive to a first reference signal and operable to supply a first load...
US20140354358 POWER AMPLIFIER  
The present disclosure relates to a power amplifier, the power amplifier including a first amplifier configured to form a common source by allowing sources of a plurality of first transistors to...
US20110080220 TEMPERATURE COMPENSATED INTEGRATOR  
A representative integrator includes an amplifier having an input and an output; a feedback loop coupled between the input and the output of the amplifier, the feedback loop comprising a...
US20130113558 AMPLIFIER THERMAL MANAGEMENT  
A thermally regulated amplifier system includes an amplifier unit, a temperature-sensing unit and a controller. The amplifier unit includes a power amplifier that has an adjustable gain function....
US20150185744 COMPENSATION CIRCUIT FOR COMMON VOLTAGE ACCORDING TO GATE VOLTAGE  
Disclosed is a compensation circuit for a common voltage according to a gate voltage, which compensates the common voltage in accordance with variation in gate high voltage, to obtain an optimal...
US20150091656 Methods and Devices for Impedance Matching in Power Amplifier Circuits  
Methods of turning on and/or turning off amplifier segments in a scalable periphery amplifier architecture are described in the present disclosure. The turning on and/or turning off the amplifier...
US20140218106 Power Amplifier Power Controller  
A power amplifier power controller in the power amplifier system monitors various operating conditions of the power amplifier, and controls the output transmit power of the power amplifier by...
US20110148519 POWER AMPLIFIER POWER CONTROLLER  
A power amplifier power controller in the power amplifier system monitors various operating conditions of the power amplifier, and controls the output transmit power of the power amplifier by...
US20120313710 PERFORMANCE OPTIMIZATION OF POWER AMPLIFIER  
Aspects of embodiments according to the present invention are directed toward a circuitry and a method to accurately measure the junction temperature of power amplifier and uses the measurement to...
US20140035676 Doherty Power Amplifier and Implementation Method Thereof  
The present invention discloses a Doherty power amplifier and an implementation method thereof. A peak amplifying circuit of the Doherty power amplifier comprises a radio frequency switching...
US20150003617 Power Supplies  
Techniques for providing multiple power supplies in electronic devices are disclosed. According to one aspect of the present invention, an appropriate power supply is provided only to accommodate...
US20140240051 Audio Amplifier Power Supply with Inherent Power Factor Correction  
An audio amplifier is powered by a switch mode power supply optimized for audio applications. The power supply includes a rectifier circuit and a discontinuous mode multiphase isolated flyback...
US20130033315 Audio Amplifier Power Supply with Inherent Power Factor Correction  
An audio amplifier is powered by a switch mode power supply optimized for audio applications. The power supply includes a rectifier circuit and a discontinuous mode multiphase isolated flyback...
US20120038423 VARIABLE GAIN BICMOS AMPLIFIER  
An amplifier circuit comprising: a MOSFET amplifier circuit; a BJT amplifier circuit; a MOSFET switch circuit arranged for switching between the MOSFET amplifier circuit and the BJT amplifier...
US20110260791 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...
US20140232469 RF POWER AMPLIFIER AND METHOD OF ASSEMBLY FOR SAME  
In general, an RF power amplifier comprises a controller, a driver, a splitter, a final stage, and a combiner coupled together to function as the RF power amplifier. One or more of the above...
US20130002358 ELECTRONIC CIRCUITRY FOR HIGH-TEMPERATURE ENVIRONMENTS  
A circuitry adapted to operate in a high-temperature environment of a turbine engine is provided. A relatively high-gain differential amplifier (102) may have an input terminal coupled to receive...
US20130082772 DIGITALLY-SCALABLE TRANSFORMER COMBINING POWER AMPLIFIER  
A digitally configurable transformer that performs switched transformer combining is disclosed. The flexible transformer includes switches that are dynamically configurable to efficiently combine...
US20140347124 POWER AMPLIFIER CONTROL CIRCUITS  
Circuits for reducing power consumption in power amplifier circuits are disclosed. In certain embodiments, a circuit for power control in the transmitter includes a coupling circuit, a first power...
US20130154740 TECHNIQUES FOR PGA LINEARITY  
Techniques for designing a highly linear programmable gain amplifier (PGA). In an aspect, the PGA includes a plurality of feedback switches selectively coupling an output of an operational...
US20140132342 AMPLIFIER CIRCUIT AND FEEDBACK CIRCUIT  
An amplifier circuit whose frequency response has almost no soft knee characteristic or no peak when inverting input capacitance Csin varies and when feedback capacitance Cf is a fixed value of...
US20130057341 AMPLIFIER CIRCUIT AND FEEDBACK CIRCUIT  
An amplifier circuit whose frequency response has almost no soft knee characteristic or no peak when inverting input capacitance Csin varies and when feedback capacitance Cf is a fixed value of...
US20110268289 GROUND LOOP NOISE REJECTION FOR A HEADSET SUBSYSTEM  
For headphone subsystems that employ common ground switches for speaker outputs (for example), there can be a significant issue with cross-talk and ground noise. Here, configurations for an...