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)
09/2010
09/21/2010US7800437 Closed loop timing feedback for PWM switching amplifiers using predictive feedback compensation
09/21/2010US7800290 High efficiency emitter for incandescent light sources
09/21/2010CA2483107C Rf power amplifier employing bias circuit topologies for minimization of rf amplifier memory effects
09/16/2010WO2010105039A1 Thermal compensation of an exponential pair
09/16/2010WO2010103582A1 Differential amplifier and pipeline ad converter using same
09/16/2010WO2010103580A1 Switched capacitor amplification circuit and analog front end circuit
09/16/2010WO2010065243A3 Hybrid power control for a power amplifier
09/16/2010US20100231430 Amplifier and analog/digital converter
09/16/2010US20100231305 Semiconductor device for signal amplification
09/16/2010US20100231304 Semiconductor device
09/16/2010US20100231303 Method and system for power amplifier (pa) with on-package matching transformer
09/16/2010US20100231302 Amplification circuit
09/16/2010US20100231301 Amplifier circuit
09/16/2010US20100231300 Input buffer with optimal biasing and method thereof
09/16/2010US20100231299 Automatic gain control
09/16/2010US20100231298 Class D amplifier circuit
09/16/2010US20100231297 Electronic device for self oscillating class d system
09/16/2010US20100231294 Apparatus and method for signal processing of voltage signals from electrodes of a magneto-inductive, flow measuring device bier3004/fjd
09/16/2010US20100230582 Photoelectric conversion module
09/16/2010DE112007001528T5 Verstärkerschaltung mit über Kreuz gekoppelten Kaskoden-Transistoren Amplifier circuit having cross-coupled cascode transistors
09/16/2010DE102006044006B4 Vorrichtung zum Wandeln eines asymmetrischen Singals in ein Differenzsignal Apparatus for converting an asymmetric singals in a differential signal
09/15/2010EP2228901A1 Hybrid amplifier element and switching assembly
09/15/2010EP2228900A2 Phase correcting apparatus and distortion compensating apparatus for radio transmitter
09/15/2010EP2227860A1 Load modulation arrangement
09/15/2010EP2227858A1 High-linearity complementary amplifier
09/15/2010EP2041867B1 Amplifier employing interleaved signals for pwm ripple suppression
09/15/2010EP1518342B1 Satellite travelling-wave tube amplifier on-line non-linearity measurement
09/15/2010CN1992511B Differential amplifier, data driver and display device
09/15/2010CN1612644B Parameter control method and parameter setting apparatus
09/15/2010CN101836358A Integrated-circuit low-noise amplifier
09/15/2010CN101834576A Multimode tunable CMOS (Complementary Metal Oxide Semiconductor) differential low noise amplifier
09/15/2010CN101834575A Operational amplifier
09/15/2010CN101834574A Amplifier circuit and method of signal amplification
09/15/2010CN101834573A Class-D amplifier
09/15/2010CN101834572A Broadband radio-frequency combining power amplifier
09/15/2010CN101834571A Efficient linear power amplifier circuit
09/15/2010CN101834569A Through type high-definition power amplifying circuit of sound system
09/15/2010CN101834565A Signal amplifying circuit and signal amplifying method
09/15/2010CN101834332A Coupler and power amplification system
09/15/2010CN101217280B A successive approximation A/D converter adopting switched-OPAMP
09/15/2010CN101119105B Malajustment emendation, noise detecting apparatus and method, semiconductor device and display device
09/15/2010CN101051820B Amplifier and driving circuit using the same
09/14/2010US7797065 Automute detection in digital audio amplifiers
09/14/2010US7796970 Integrated low noise amplifier
09/14/2010US7796687 Enhanced reconditioning equalizer filter chain for multi-carrier signals with different technologies
09/14/2010US7795981 Low noise amplifier
09/14/2010US7795977 Bootstrapped class AB CMOS output stage
09/14/2010US7795976 Slew-rate-enhanced error amp with adaptive transconductance and single dominant pole shared by main and auxiliary amps
09/14/2010US7795975 Class AB amplifier
09/14/2010US7795974 Digitally variable gain amplifier using multiplexed gain blocks
09/14/2010US7795973 Programmable gain amplifier
09/14/2010US7795971 Electronic circuit and electronic device
09/14/2010US7795970 Reduction of dead-time distortion in class D amplifiers
09/14/2010US7795969 Digital amplifier
09/14/2010US7795968 Power ranging transmit RF power amplifier
09/14/2010US7795966 Balanced amplifier with protection circuit
09/14/2010US7795964 Signal generating apparatus and class-D amplifying apparatus
09/14/2010US7795963 Two-peak-power-level control method and device for a pulse-mode amplifier
09/14/2010US7795962 Method and apparatus to correct an error in a switching power amplifier
09/14/2010CA2459545C Method and apparatus for providing a supply voltage based on an envelope of a radio frequency signal
09/10/2010WO2010101719A2 Amplifier system for cell sites and other suitable applications
09/10/2010WO2010100741A1 Optical communication apparatus
09/10/2010WO2010100683A1 Reference current trimming circuit and a/d converter having the reference current trimming circuit
09/10/2010WO2010071310A3 Method and apparatus for enhancing performance of doherty power amplifier
09/09/2010US20100226411 Low-noise amplifier and radio communication system
09/09/2010US20100225401 Semiconductor device
09/09/2010US20100225400 Method and system for on-chip impedance control to impedance match a configurable front end
09/09/2010US20100225399 Power amplifier, and method of controlling power amplifier
09/09/2010US20100225398 Multi-path, multi-oxide-thickness amplifier circuit
09/09/2010US20100225397 Amplifier and radio
09/09/2010US20100225396 Semiconductor integrated circuit and electronic device
09/09/2010US20100225395 Input Buffer With Impedance Cancellation
09/09/2010US20100225394 High bandwidth, rail-to-rail differential amplifier with input stage transconductance amplifier
09/09/2010US20100225393 High bandwidth, rail-to-rail differential amplifier with intermediate stage current amplifier
09/09/2010US20100225392 High bandwidth, rail-to-rail differential amplifier with output stage amplifier
09/09/2010US20100225391 Three-level half-bridge pulse-width modulation amplifier and method of driving the same
09/09/2010US20100225388 Power amplifier
09/09/2010US20100225122 Auxiliary power unit with dual use of speed signals
09/09/2010US20100224761 Light receiving detection circuit
09/09/2010DE102009012192A1 Class-D audio power amplifier has circuit with detachable thyristors, where frequency-asymmetrical protection thyristor system is provided on uncoupling condenser with half maximum frequency
09/08/2010EP2225829A1 Comparator circuit
09/08/2010EP1438571B1 Biosensor circuit and sensor array consisting of a plurality of said biosensor circuits and biosensor array
09/08/2010CN201577069U Low power consumption operational amplifier
09/08/2010CN201577068U Anti-jamming infrared signal direct current amplifier
09/08/2010CN201577067U Single-phase meter signal power amplifying circuit
09/08/2010CN201577066U Single-phase meter signal power amplifying circuit
09/08/2010CN1845452B Operational amplifier with less offset
09/08/2010CN1841923B Low noise amplifier and differential amplifier with variable gain mode
09/08/2010CN1835396B Bias circuit
09/08/2010CN101826886A Transceiving device with functions of power amplification and frequency hopping
09/08/2010CN101826876A Zero input bias current, auto-zeroed buffer for a sample and hold circuit
09/08/2010CN101826847A High-efficiency single to differential amplifier
09/08/2010CN101826846A Half-bridge 3-level pulse-width modulation amplifier, audio apparatus and driving method of the PWM amplifier
09/08/2010CN101826845A Voltage control delay circuit-based class D power amplifier
09/08/2010CN101826844A Power amplifier and signal amplifying method based on power amplifier
09/08/2010CN101826843A Variable gain amplifier for linearity optimization at low gain
09/08/2010CN101373954B Method for amplifying voltage signal and operational amplifier
09/08/2010CN101373952B Low noise amplifier capable of implementing differential amplification and method thereof
09/08/2010CN101232286B A/d converter
09/08/2010CN101026359B Operational amplifier
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