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)
09/2012
09/26/2012CN102111113B Serially concatenated multi-level radio-frequency power amplifier and front-end transmitter
09/26/2012CN101969298B High-power travelling wave tube amplifier for broadband
09/26/2012CN101888215B Radio-frequency power amplifier circuit with adjustable predistortion function
09/26/2012CN101764612B Multi-stage comparator
09/26/2012CN101663813B A data processing system for clipping correction
09/26/2012CN101640516B Digital predistortion power amplifier and signal processing method thereof
09/26/2012CN101617403B A high power integrated RF amplifier
09/26/2012CN101512896B Digital amplifier
09/26/2012CN101005269B Nested transimpedance amplifier
09/25/2012US8274336 Saturated power amplifier system
09/25/2012US8274335 System and method for effectively implementing a front end core
09/25/2012US8274334 Detection circuit with improved anti-blooming circuit
09/25/2012US8274333 Method and apparatus for protecting devices in an RF power amplifier
09/25/2012US8274332 N-way Doherty distributed power amplifier with power tracking
09/25/2012US8274331 Differential receiver
09/25/2012US8274330 Power amplifier circuitry and method
09/25/2012US8274326 Equalization circuit
09/25/2012US8274034 Optical arrangement comprising emitters and detectors on a common substrate
09/20/2012WO2012125657A2 Apparatus and methods for capacitive load reduction
09/20/2012WO2012123288A1 Apparatus for amplifying an input-signal
09/20/2012WO2012122799A1 Signal amplification circuit and output signal amplification method
09/20/2012US20120238233 Wireless communication system
09/20/2012US20120236963 Amplifying unit, power amplifier and transmitter
09/20/2012US20120235751 Semiconductor device
09/20/2012US20120235750 Amplification device having compensation for a local thermal memory effect
09/20/2012US20120235749 Doherty amplifier
09/20/2012US20120235747 Broadband, High-Linearity Led Amplifier Having High Output Capacity in a Compact Design
09/20/2012US20120235746 Amplifier
09/20/2012US20120235745 Variable gain amplifier
09/20/2012US20120235744 Driving method for obtaining a gain linear variation of a transconductance amplifier and correspondence driving circuit
09/20/2012US20120235743 Apparatus for outputting symmetrical signal and amplifier circuit
09/20/2012US20120235742 Power amplifier
09/20/2012US20120235734 Enhanced doherty amplifier
09/20/2012US20120235708 Method and System for High Speed Differential Synchronous Sense Amplifier
09/20/2012DE102012204221A1 Genauer und kosteneffizienter, linearer hall-sensor mit digitalem ausgang Accurate and cost efficient linear hall-sensor with digital output
09/19/2012EP2501037A1 Output signal termination concept for switch-mode power amplifier
09/19/2012EP2501036A1 Circuit configuration for evaluating photoelectric measurements
09/19/2012EP2501035A1 Amplifier
09/19/2012EP2499738A1 Cascaded amplifiers with transformer-based bypass mode
09/19/2012CN202444489U Repeater and power amplifier apparatus thereof
09/19/2012CN202444468U Self-adaption D type audio power amplifying circuit structure
09/19/2012CN102687392A Switched capacitor circuit
09/19/2012CN102687391A Cascaded amplifiers with transformer-based bypass mode
09/19/2012CN102684712A High-efficiency frequency modulation transmitter, circuit structure of power amplifier and design method
09/19/2012CN102684621A 可变增益放大器 A variable gain amplifier
09/19/2012CN102684619A Amplifier circuit and method
09/19/2012CN102684618A Vcom switching amplifier
09/19/2012CN102684617A Signal amplification circuit and method for improving output signal
09/19/2012CN102684616A Radio frequency power amplifier realized by using CMOS (Complementary Metal-Oxide-Semiconductor Transistor) process
09/19/2012CN102684615A Driving device achieving ideal power up and power down timing sequence of power amplifier
09/19/2012CN102684614A Amplifier
09/19/2012CN102684508A System and method for current sensing within a voltage regulator
09/19/2012CN102684164A Class e amplifier with inductive clamp
09/19/2012CN101917166B Configurable radio-frequency power amplifier and radio-frequency transmitting front-end module with same
09/19/2012CN101895263B Digital input class-d power amplifier circuit
09/19/2012CN101771386B Class D audio power amplifier with anti-saturation distortion circuit
09/19/2012CN101335503B 前置放大器和光接收装置 Preamplifier and a light receiving device
09/18/2012US8270846 Amplification circuit, differential amplification circuit, and optical transmitter
09/18/2012US8269562 Open-loop transimpedance amplifier for infrared diodes
09/18/2012US8269561 Systems and methods for CMOS power amplifiers with power mode control
09/18/2012US8269557 Electronic amplifier
09/18/2012US8269556 Method and amplifier for cancelling magnetic coupling
09/18/2012US8269555 Efficient linear LINC power amplifier
09/18/2012US8269554 System and method for controlling radio frequency transmissions from an electronic device
09/16/2012CA2771480A1 Quadrature communications device with i antennas and q antennas and modulated power supply and related methods
09/13/2012WO2012120811A1 Reception signal processing device
09/13/2012WO2012120570A1 Current-source control circuit
09/13/2012US20120229219 Multi-level power amplification system
09/13/2012US20120229218 Circuit for compensating base current of transistor and amplifier circuit provided with the same
09/13/2012US20120229217 High-frequency power amplifier
09/13/2012US20120229216 Distributed amplifier with improved stabilization
09/13/2012US20120229215 Amplifier assembly having controlled return of power loss
09/13/2012US20120229214 Amplifier Circuit and Method
09/13/2012US20120229213 Amplifying device
09/13/2012US20120229212 Amplifier using master-slave control scheme
09/13/2012US20120229211 Amplifier using fast discharging reference
09/13/2012US20120229210 Overlay class f choke
09/13/2012US20120229207 Pulse width modulation signal generating circuit and amplifier circuit with beat frequency cancellation circuit
09/13/2012US20120229206 Minimum Feedback Radio Architecture with Digitally Configurable Adaptive Linearization
09/13/2012US20120229205 Amplifier circuit
09/13/2012US20120229204 Switched capacitor circuit
09/12/2012EP2498399A2 Distributed amplifier with improved stabilization
09/12/2012EP2498398A1 Amplifier circuit and method
09/12/2012EP2498397A1 Apparatus for amplifying an input-signal
09/12/2012EP2498396A2 Doherty amplifier
09/12/2012EP2498052A2 High-linearity signal-processing amplifier
09/12/2012EP2497188A1 Digital affine transformation modulated power amplifier for wireless communications
09/12/2012CN202435346U Signal amplification circuit of communication equipment
09/12/2012CN202435345U Energy-saving high-efficiency audio power amplifier
09/12/2012CN102668480A Analog bias control for packet communication systems
09/12/2012CN102668386A Rf信号生成电路以及无线发送机 Rf signal generating circuit and a wireless transmitter
09/12/2012CN102668373A Driving method for obtaining a gain linear variation of a transconductance amplifier and corresponding driving circuit
09/12/2012CN102668372A Digital charge amplifier and method for converting charge signals into digital signals
09/12/2012CN102664598A Hot backup system of radio frequency power amplifiers and realization method
09/12/2012CN102664597A Wide-adjustment-range transconductance amplifier based on digital control technology and control method thereof
09/12/2012CN102664596A High fidelity transistor audio power amplifying device
09/12/2012CN102664595A Preliminary amplifier and magnetic resonance amplifying device
09/12/2012CN102664594A Log amplifier with temperature compensation function
09/12/2012CN102663475A SD card and RF signal amplification device based on double-interface smart card chip
09/12/2012CN101984555B Parametric array audio play system
1 ... 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 ... 441