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)
08/2003
08/07/2003WO2003065498A1 High-frequency circuit module and radio communication apparatus
08/07/2003WO2003065495A1 Solid state transmitter circuit
08/07/2003WO2003065415A2 Group delay equalizer integrated with a wideband distributed amplifier monolithic microwave integrated circuit
08/07/2003US20030148749 DC offset cancel circuit
08/07/2003US20030148747 Radio base station
08/07/2003US20030146923 Amplifier circuit, driving circuit of display apparatus, portable telephone and portable electronic apparatus
08/07/2003US20030146793 Amplifier for FM antennas
08/07/2003US20030146790 Multi-mode amplifier bias circuit
08/07/2003US20030146789 Integrated circuit arrangement with a transconductance amplifier
08/07/2003US20030146788 Operation amplifier circuit, drive circuit and method of controlling operation amplifier circuit
08/07/2003US20030146786 ADC having chopper offset cancellation
08/07/2003US20030146784 Method and clamping apparatus for securing a minimum reference voltage in a video display boost regulator
08/07/2003CA2736612A1 Solid state transmitter circuit
08/07/2003CA2474975A1 Power amplification apparatus of portable terminal
08/07/2003CA2474257A1 Modulator- amplifier
08/06/2003EP1332644A1 Portable multi-channel amplifier
08/06/2003EP1332551A1 Amplifier linearisation
08/06/2003EP1332550A2 Linear modulation using a linear and a non-linear amplifier
08/06/2003EP1119905B1 In-line, unbalanced amplifier, pre-distortion circuit
08/06/2003EP0839406B1 Gain control
08/06/2003CN2565199Y Bias-free power amplifier
08/06/2003CN1435007A High sheet MOS resistor method and apparatus
08/06/2003CN1117428C Method in compensation of unlinearities in amplifier, amplifier, and uses of method and amplifier
08/05/2003US6603956 Radio repeater using the non-radiative dielectric waveguide
08/05/2003US6603359 High-frequency power amplifying apparatus
08/05/2003US6603356 Method and circuit for controlling quiescent current of amplifier
08/05/2003US6603355 Active common mode feedback for unbalanced input and feedback signals and methods thereof
08/05/2003US6603354 Method and apparatus to generate an optimum common-mode voltage in analog differential circuits
08/05/2003US6603353 Switching power amplifier
08/05/2003US6603352 Switched-mode power amplifier integrally performing power combining
08/05/2003US6603351 Power amplifier with gain change compensation
08/05/2003US6603347 Amplifier having controllable input impedance
08/05/2003US6603343 Phase correction circuit for transistor using high-frequency signal
08/05/2003US6603293 Power supply rejection ratio optimization during test
08/05/2003CA2268421C Audio direct from power supply
07/2003
07/31/2003WO2003063345A2 Dual gain amplification low noise amplifier
07/31/2003WO2003063344A1 Operational amplifier having improved input offset performance
07/31/2003WO2003063343A1 Differential input stage for electronic equipment, comprising means for reducing interference caused by a voltage or current in common mode
07/31/2003WO2003063340A2 Input buffer amplifier with centroidal layout
07/31/2003WO2003063339A2 A high performance bifet low noise amplifier
07/31/2003WO2003063246A2 Rf amplifier
07/31/2003WO2003063198A2 A voltage limiting semiconductor pass gate circuit
07/31/2003WO2003063051A1 An electronic circuit for converting a current signal to a voltage signal
07/31/2003US20030142834 Headphone amplifier
07/31/2003US20030142816 Broadband driver circuit
07/31/2003US20030142088 Method and system for precharging OLED/PLED displays with a precharge latency
07/31/2003US20030142013 Solid state transmitter circuit
07/31/2003US20030141953 Monolithic transformer compensated circuit
07/31/2003US20030141941 Group delay equalizer integrated with a wideband distributed amplifier monolithic microwave integrated circuit
07/31/2003US20030141935 High speed differential to single-ended converter
07/31/2003US20030141934 Power supply rejection circuit for an audio amplifier
07/31/2003US20030141933 N-way RF power amplifier with increased backoff power and power added efficiency
07/31/2003US20030141931 FET amplifier with temperature-compensating circuit
07/31/2003US20030141930 Output stage with stable quiescent current
07/31/2003US20030141929 Differential amplifier offset adjustment
07/31/2003US20030141518 Semiconductor device and equipment for communication system
07/31/2003CA2472125A1 Operational amplifier having improved input offset performance
07/30/2003EP1331740A2 Layout technique for matched resistors on an integrated circuit substrate
07/30/2003EP1331732A2 System and method for a programmable gain amplifier
07/30/2003EP1331731A1 Differential input stage of an electronic device with reducing means for current and voltage disturbances from common mode signals
07/30/2003EP1331730A2 Transmission-line tuned switching power amplifier
07/30/2003EP1331689A1 Power splitter/combiner circuit
07/30/2003EP1330871A2 Multiple-voltage supply power amplifier with dynamic headroom control
07/30/2003EP1330870A1 Method and apparatus for controlling an amplifier
07/30/2003CN2563834Y Dynamic power servo sound frequency power amplifier
07/30/2003CN1433242A High-frequency power amplifier
07/30/2003CN1433145A Changeable power amplifier
07/30/2003CN1433144A 电路 Circuit
07/30/2003CN1116745C Off-channel leakage power monitoring apparatus and method
07/30/2003CN1116736C Double-side band pilot technology for distorted control system generated from reducing circuit
07/30/2003CN1116735C Hybrid Chireix/Doherty amplifiers power waveform synthesis
07/29/2003US6600483 Driving circuit
07/29/2003US6600383 Radio-frequency composite element
07/29/2003US6600376 High efficiency power amplifier
07/29/2003US6600375 Floating source modulator for silicon carbide transistor amplifiers
07/29/2003US6600373 Method and circuit for tuning a transconductance amplifier
07/29/2003US6600372 Attenuator control circuit
07/29/2003US6600371 Low noise amplifier
07/29/2003US6600370 Intermodulation signal detector
07/29/2003US6600367 Low distortion amplifier
07/29/2003US6600366 Differential line driver circuit
07/29/2003US6600365 Audio transient suppression circuits and methods
07/29/2003US6600363 Folded floating-gate differential pair amplifier
07/29/2003US6600362 Method and circuits for parallel sensing of current in a field effect transistor (FET)
07/29/2003US6600361 Semiconductor device
07/29/2003US6600327 Method of reducing distortion and noise of square-wave pulses, a circuit for generating minimally distorted pulses and use of method and circuit
07/29/2003US6600303 Current source circuit
07/29/2003US6600301 Current shutdown circuit for active bias circuit having process variation compensation
07/29/2003US6600179 Power amplifier with base and collector straps
07/29/2003US6600178 Heterojunction bipolar transistor
07/29/2003CA2298310C Low-voltage transconductance amplifier/filters
07/28/2003CA2417395A1 Monolithic transformer compensated circuit
07/24/2003WO2003061277A2 Charge or particle sensing
07/24/2003WO2003061136A1 Method and apparatus for generating a pulse width modulated signal
07/24/2003WO2003061124A2 Differential inverter circuit
07/24/2003WO2003061122A2 Differential amplifier circuit for regenerating complementary digital signals
07/24/2003WO2003061118A1 Input circuit
07/24/2003WO2003061117A1 Class d electroacoustic amplifier and method for compensation of power supply voltage influence on output audio signal in class d electroacoustic amplifier
07/24/2003WO2003061115A1 Composite power amplifier
07/24/2003WO2003033749A8 Matrix element precharge voltage adjusting apparatus and method
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