Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
10/2012
10/04/2012WO2012131282A1 An amplifier
10/04/2012US20120250881 Microphone biasing
10/04/2012US20120250754 Efficiency-optimized coding for high frequency power amplifiers
10/04/2012US20120249262 Power combiner, power amplifying module having the same, and signal transceiving module
10/04/2012US20120249247 Front-End Circuit of Low Supply-Voltage Memory Interface Receiver
10/04/2012US20120249246 Operational amplifier
10/04/2012US20120249245 Output buffer of source driver
10/04/2012US20120249244 Output buffer of source driver
10/04/2012US20120249243 Low switching error, small capacitors, auto-zero offset buffer amplifier
10/04/2012US20120249242 Apparatus and methods for electronic amplification
10/04/2012US20120249241 Light receiving circuit with differential output
10/04/2012US20120249232 Traveling wave amplifier with pre-emphasis function
10/04/2012US20120249145 Gradient amplifier system
10/04/2012DE112010004476T5 Empfangsschaltung für sichtbares Licht Receiving circuit for visible light
10/04/2012DE102012204945A1 Verstärkerschaltung, Mobilkommunikationsvorrichtung und Verfahren zum Einstellen eines Arbeitspunkts eines Leistungsverstärkers Amplifier circuit, mobile communications device and method for adjusting an operating point of a power amplifier
10/04/2012DE102011006407A1 Effizienzoptimierte Kodierung für HF-Leistungsverstärker Optimized coding efficiency for RF power amplifiers
10/04/2012DE102010012269B4 Differenzverstärker und Verfahren zum Betreiben eines Differenzverstärkers Differential amplifier and method of operating a differential amplifier
10/04/2012DE102007008921B4 Biasschaltung für Leistungsverstärker Bias circuit for power amplifiers
10/03/2012EP2506427A1 Switching power amplifier for quantized signals
10/03/2012EP2506426A1 A method for amplification of a signal, and an amplifying device therefor
10/03/2012EP2506425A1 Source or emitter follower buffer circuit and method
10/03/2012EP2504920A1 Digital charge amplifier and method for converting charge signals into digital signals
10/03/2012EP2504919A1 Parallel correction amplifier
10/03/2012CN202475371U Two-output voltage-controlled oscillator loop signal distribution amplifier
10/03/2012CN202475368U High-efficiency Doherty power amplifier
10/03/2012CN102714488A Power amplifier
10/03/2012CN102714487A Multi-band power amplifier
10/03/2012CN102714486A Amplifying device and signal processing device
10/03/2012CN102711019A Network drawing type digital power amplifier system
10/03/2012CN102710912A Tuner for receiving satellite television signal
10/03/2012CN102710227A Operational amplifier
10/03/2012CN102710226A Power amplifying device
10/03/2012CN102710225A Multilevel class-d amplifier
10/03/2012CN102710224A Multi-mode power amplifier and corresponding mobile communication equipment
10/03/2012CN102710223A Amplifier circuit, mobile communication device and method for adjusting a bias of a power amplifier
10/03/2012CN102710220A Feed-forward power amplifier on basis of pre-distortion and Doherty
10/03/2012CN101902204B Power supply method, power source device and base station radio frequency system for power amplification
10/03/2012CN101882915B Push-pull type radio-frequency power amplifier with improved linearity
10/03/2012CN101877576B Filter circuit and communication equipment provided with same
10/03/2012CN101789789B Generating circuit from reference voltage
10/03/2012CN101777878B Power amplifier for outputting bandwidth large current
10/03/2012CN101741321B Sound box non-contact inductive control system and control method thereof
10/03/2012CN101675584B Amplifier pre-distortion systems and methods
10/03/2012CN101640517B Switching audio amplifier, digital speaking device and audio amplification method
10/03/2012CN101164233B Receiver comprising an amplifier
10/03/2012CN101160716B Device comprising a switching amplifier and a load
10/02/2012US8280262 Light receiving circuit and photocoupler isolation circuit
10/02/2012US8279013 Power amplifier and MMIC using the same
10/02/2012US8279012 Amplifier circuit and methods of operation thereof
10/02/2012US8279011 Amplifier circuit and method of signal amplification
10/02/2012US8279010 Radio frequency power amplifier
10/02/2012US8279009 Distributed doherty amplifiers
10/02/2012US8279008 CMOS millimeter-wave variable-gain low-noise amplifier
10/02/2012US8279006 Low noise amplifier
10/02/2012US8279005 Amplifier circuit
10/02/2012US8279004 System for driver amplifier
10/02/2012US8279003 Differential RF amplifier
10/02/2012US8278613 Image sensing apparatus and image sensing system
10/02/2012CA2554515C Output stage for a hearing aid and method of driving output stage
09/2012
09/27/2012WO2012128686A1 A signal directing means for dividing an input signal into at least two output signals or combining at least two input signals into one output signal
09/27/2012WO2012127956A1 Computation amplifier circuit, and display panel driver and display device employing same
09/27/2012US20120243580 Quadrature lattice matching network
09/27/2012US20120243359 Sense amplifier
09/27/2012US20120242525 Differential amplifier and analog/digital converter
09/27/2012US20120242414 Semiconductor integrated circuit and receiving apparatus
09/27/2012US20120242413 Amplifier circuit and method of amplifying a signal in an amplifier circuit
09/27/2012US20120242412 Auto Bias
09/27/2012US20120242411 Operational amplifier
09/27/2012US20120242410 Bipolar stacked transistor architecture
09/27/2012US20120242409 Analog circuits having improved transistors, and methods therefor
09/27/2012US20120242408 Low noise variable gain amplifier utilizing variable feedback techniques with constant input/output impedance
09/27/2012US20120242407 Switched Amplifier Circuit Arrangement and Method for Switched Amplification
09/27/2012US20120242406 Signal transforming circuit
09/27/2012US20120242404 ADC Preamplifier and the Multistage Auto-Zero Technique
09/27/2012US20120242284 Filter for improved driver circuit efficiency and method of operation
09/27/2012US20120241598 Optical module
09/27/2012DE102012102504A1 Datenumsetzerschaltung und -verfahren Data converter circuit and method
09/27/2012DE102011015010A1 Verfahren zum Betreiben eines aktiven Motorlagers für ein Fahrzeug und aktives Motorlager A method of operating an active engine mount for a vehicle and an active engine mount
09/27/2012DE102011014843A1 Verstärkeranordnung und Verfahren zum Betreiben einer Verstärkeranordnung Amplifier arrangement and method for operating an amplifier arrangement
09/27/2012DE102006019887B4 Multifunktions-RF-Schaltung Multifunction RF circuit
09/26/2012EP2502345A1 An adaptive digital pre-distortion method and device to enhance the power utility of power amplifiers in wireless digital communication applications
09/26/2012EP2502344A1 Chopper stabilized amplifier with filtering
09/26/2012EP2502343A1 Amplifier assembly having controlled return of power loss
09/26/2012EP2502337A2 Power supplying system
09/26/2012EP2502325A2 Forward link signaling within a wireless power system
09/26/2012CN202455318U Shape-adjustable linearizer of space traveling wave tube (TWT)
09/26/2012CN202455317U Low temperature drift maladjustment self-correcting operational amplifier circuit
09/26/2012CN202455316U Internally matched amplifier
09/26/2012CN202454524U Giant large power high sound quality audio power amplification electronic tube
09/26/2012CN102696172A High-frequency power amplifier having Doherty enhancement
09/26/2012CN102696164A Forward link signaling within a wireless power system
09/26/2012CN102694553A Data converter circuit and method
09/26/2012CN102694539A Communication system with monitored input state of an input device and voltage increasing device
09/26/2012CN102694516A Rail to rail operational amplifier of asymmetric bias voltage structure
09/26/2012CN102694515A Differential amplifier and analog/digital converter
09/26/2012CN102694514A Power amplifier
09/26/2012CN102694513A Class B amplifier integrated circuit
09/26/2012CN102694512A Final stage module of power amplifier, power amplifier and magnetic resonance device
09/26/2012CN102694510A Chopping amplifier circuit coupled with sensor
09/26/2012CN102158185B Cardiac sound amplifying circuit based on MAX 4465 amplifier chip and LM 386 amplifier chip
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