Patents
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
05/1983
05/31/1983US4386324 Planar chip-level power combiner
05/31/1983US4386242 Impedance matching using active couplers
05/31/1983CA1147405A1 Amplifier with cross-over current control
05/25/1983EP0079559A1 Push-pull amplifier
05/25/1983EP0079352A1 Transistor amplifier operating on ultra high frequency pulse mode.
05/18/1983EP0079098A1 Amplifier with signal-dependent voltage supply source
05/17/1983US4384261 Class A complementary single-ended push-pull amplifier
05/17/1983US4384258 Electronic amplifiers
05/17/1983US4384215 Capacitor element
05/17/1983CA1146640A1 Amplifier arrangement with parallel-operated amplifier sections
05/17/1983CA1146474A1 Current transfer amplifier
05/11/1983WO1983001714A1 Amplifier suitable for low supply voltage operation
05/11/1983EP0078347A1 Telecommunication line high-efficiency operational amplifier
05/10/1983US4383223 CMOS Operational amplifier employing push-pull output stage
05/10/1983US4383222 Half-wave signal isolator with compensator means to reduce temperature-dependent effects
05/10/1983US4383205 Motor drive amplifier
05/10/1983US4383189 Circuit arrangement for summing the powers of two isofrequential microwave signals
05/10/1983US4383185 Switchable analog signal inverter
05/04/1983EP0078189A1 Hyperfrequency power transmitter with field effect transistors, particularly for Doppler radar
04/1983
04/28/1983WO1983001544A1 High speed data bus structure and system
04/28/1983WO1983001543A1 Operational amplifier
04/26/1983US4381487 Resonator coupled differential amplifier
04/26/1983CA1145491A1 Rf amplifying system having image rejection
04/26/1983CA1145419A1 Class ab push-pull amplifiers
04/19/1983US4380741 Photocurrent compensation for electronic circuitry exposed to ionizing radiation
04/19/1983US4380740 Current amplifier
04/19/1983US4380739 Electronic differential controller
04/19/1983US4380738 RF Amplifier apparatus
04/19/1983CA1145033A1 Photo-feedback preamplifier circuit
04/12/1983US4380022 Monolithic fully integrated class B push-pull microwave GaAs MESFET with differential inputs and outputs with reduced Miller effect
04/12/1983US4380005 Dynamic zero offset compensating circuit for A/D converter
04/12/1983US4379996 Enhancement of class C operation of bipolar junction transistor
04/12/1983US4379639 Alarm watch with remote sonic amplifier
04/05/1983US4379269 RF Amplifier having automatic gate bias switching in response to band selection
04/05/1983US4379268 Differential amplifier circuit
04/05/1983US4379267 Low power differential amplifier
04/05/1983CA1144245A1 Voltage offset circuit for low voltage amplifier
04/05/1983CA1144244A1 Auto-zero amplifier circuit with wide dynamic range
03/1983
03/29/1983US4378530 High-efficiency low-distortion amplifier
03/29/1983US4378529 Differential amplifier input stage capable of operating in excess of power supply voltage
03/29/1983US4378528 Gain-controlled amplifier system
03/23/1983EP0074680A2 Differential amplifier
03/17/1983WO1983000965A1 Transistor amplifier
03/16/1983EP0074294A1 Hyperfrequency amplifier with field effect transistors, particularly for a Doppler radar
03/16/1983EP0074137A1 Apparatus for electroacoustic energy conversion
03/16/1983EP0073929A2 Integrable signal processing semiconductor circuit
03/16/1983EP0073885A2 Control amplifier for a phase-locked loop
03/15/1983CA1143018A1 Operational amplifier with increased settling speed
03/09/1983EP0073353A1 Semiconductor amplifier circuit
03/08/1983US4376287 Microwave power circuit with an active device mounted on a heat dissipating substrate
03/01/1983US4375619 FET Operational amplifier with increased output swing
02/1983
02/23/1983EP0072741A2 Programmable gain integrator stage including means for offset voltage elimination
02/16/1983EP0072082A1 Differential amplifier circuit with precision active load
02/15/1983US4374363 Balanced impedance coupler
02/15/1983CA1141442A1 Selective amplifier
02/09/1983EP0071528A2 Offset compensation for switched capacitor integrators
02/08/1983CA1141000A1 Push-pull switching power amplifier
02/01/1983US4371845 Modular microwave power divider-amplifier-combiner
02/01/1983US4371844 Differential load circuit equipped with field-effect transistors
02/01/1983US4371843 Semiconductor differential amplifier circuit with feedback bias control
02/01/1983US4371840 Gain control circuit for pulse width modulation amplifier
01/1983
01/25/1983US4370623 Push-pull amplifier circuit
01/25/1983US4370608 Integrable conversion circuit for converting input voltage to output current or voltage
01/25/1983CA1140223A1 Voltage-to-current converter
01/20/1983WO1983000265A1 Power amplifier capable of simultaneous operation in two classes
01/18/1983US4369518 Compact antenna system
01/18/1983US4369411 Circuit for converting single-ended input signals to a pair of differential output signals
01/18/1983US4369410 Monolithically integrable transistor amplifier having gain control means
01/18/1983US4369409 Low-frequency power amplifier
01/18/1983CA1139851A1 Circuit arrangement for producing and stable amplification of broad-band rf signals
01/11/1983US4368420 Supply voltage sense amplifier
01/11/1983CA1139379A1 Modular amplifier with discrete power reduction switching
01/11/1983CA1139378A1 Transistorized single ended push-pull amplifier having no cross-over distortion
01/05/1983EP0069072A2 Amplifier circuit
01/05/1983EP0068900A2 Differential amplifier containing a low-pass filter
01/05/1983EP0068203A1 Semiconductor power element with protection circuit
01/04/1983US4367443 Radio frequency signal power amplifier
01/04/1983US4367442 Distortion correction circuit for a power amplifier
01/04/1983US4367419 Analog switch
01/04/1983CA1138943A1 Charge amplifier with minimum offset voltage
01/04/1983CA1138942A1 Input overload protection circuit
01/04/1983CA1138929A1 Voltage-to-current converter
12/1982
12/29/1982EP0067825A1 Pulse width modulated power amplifier.
12/28/1982US4366455 Two layers of aluminum on silica
12/28/1982US4366448 Power-amplifying circuit
12/28/1982US4366447 Push-pull amplifier circuit
12/28/1982US4366446 Feedback linearization of cascode amplifier configurations
12/28/1982US4366445 Floating NPN current mirror
12/28/1982US4366444 Temperature-independent current trimming arrangement
12/28/1982US4366442 Amplifier with muting circuit
12/28/1982US4366441 Signal-muting circuit for bridge amplifier
12/28/1982US4366398 Amplifier circuit
12/28/1982CA1138570A1 Anti-latch circuit for power output devices using inductive loads
12/22/1982EP0067447A2 Current mirror circuit
12/22/1982EP0067269A1 Isolation transformer
12/21/1982US4365209 Impedance transducer
12/21/1982US4365208 Gain-controlled amplifier using a controllable alternating-current resistance
12/21/1982US4365207 Integrated high frequency amplifier
12/21/1982US4365206 Differential amplifier
12/21/1982CA1138059A1 Split-band redundant amplifier system