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)
12/1982
12/21/1982CA1138056A1 Amplifier comprising a first and a second amplifier element
12/21/1982CA1138055A1 Cmos operational amplifier with improved frequency compensation
12/21/1982CA1138054A1 Cmos operational amplifier with reduced power dissipation
12/21/1982CA1138053A1 Push pull amplifier
12/21/1982CA1138052A1 Transistor amplifier
12/15/1982EP0067132A2 Improvement in bipolar transistor amplifiers with a high linear dynamic range
12/15/1982EP0066904A1 Switching amplifier
12/14/1982CA1137572A1 Amplifier with separate ac and dc feedback loops
12/08/1982EP0066326A1 Bias circuit for active HF elements
12/07/1982US4363008 Electronic transformer
12/07/1982US4363000 Power amplifier tank circuit
11/1982
11/30/1982US4361816 Current mirror amplifiers with programmable gain
11/30/1982US4361811 Differential amplifier system
11/30/1982US4361771 Voltage summation circuit
11/30/1982CA1136764A1 Trirotron: triode rotating beam radio-frequency amplifier
11/30/1982CA1136554A1 Overlay-coil speaker with direct coupling
11/25/1982WO1982004166A1 Transistor amplifier operating on ultra high frequency pulse mode
11/24/1982EP0065269A2 Switching device and circuit
11/23/1982US4360785 Transistor amplifiers exhibiting low input offset potentials
11/23/1982US4360784 Transformer coupled isolation amplifier
11/23/1982US4360707 Digitally driven combination coils for electrodynamic acoustic transducers
11/23/1982CA1136228A1 Operational amplifier with slew recovery enhancement
11/16/1982US4359648 Pulse signal control circuits
11/16/1982CA1135804A1 Low-noise preamplifier
11/16/1982CA1135803A1 Amplifier arrangement comprising two transistors
11/16/1982CA1135802A1 Output amplifier with non-linear negative feedback
11/10/1982EP0064126A2 A differential amplifier
11/09/1982US4358752 Analog-to-digital converter
11/09/1982US4358739 Wide-band direct-current coupled transistor amplifier
11/09/1982CA1135350A1 Inhibit circuit for a differential amplifier
11/02/1982US4357637 Preamplifier circuit
11/02/1982US4357579 Power amplifier
11/02/1982US4357578 Complementary differential amplifier
11/02/1982CA1134919A1 Modulated carrier amplifying system
10/1982
10/27/1982EP0063479A2 An amplifier for pulse width modulated signals
10/27/1982EP0063228A1 Differential amplifier
10/26/1982US4356455 Amplifier
10/26/1982US4356454 Equalizer amplifier
10/26/1982US4356453 Reduced noise-improved gain transistor circuit
10/26/1982US4356452 Class A push-pull amplifier with bias controlling circuit
10/26/1982US4356450 Offset compensating circuit for operational amplifier
10/26/1982US4356354 Electronic subscriber junctor
10/26/1982CA1134463A1 Circuit for converting single-ended input signals to a pair of differential output signals
10/19/1982US4355287 Bridge amplifiers employing complementary field-effect transistors
10/19/1982US4355285 Auto-zeroing operational amplifier circuit
10/19/1982CA1133994A1 Isolation amplifier
10/13/1982EP0062546A2 Output circuit
10/12/1982US4354163 High voltage buffer amplifier
10/12/1982US4354161 H.F. Broadband amplifier
10/12/1982US4354122 Voltage to current converter
10/12/1982CA1133595A1 Amplifier load correction system
10/12/1982CA1133594A1 Common-emitter f.sub.t doubler amplifier employing a feed forward amplifier to reduce non-linearities and thermal distortion
10/12/1982CA1133593A1 Thermally compensated variable gain differential amplifier
10/06/1982EP0061705A1 Low-value current source circuit
10/05/1982US4353047 Also containing a manganese and zirconium component
10/05/1982US4353036 Field effect transistor amplifier with variable gain control
10/05/1982US4352998 Common mode rejection coupler
10/05/1982US4352982 Photodiode circuit using a low noise artificial load resistor
10/05/1982CA1133074A1 Single ended push-pull amplifier
09/1982
09/30/1982WO1982003303A1 Amplifier output stage
09/28/1982US4352073 Complementary MOS field effect transistor amplifier
09/28/1982US4352057 Constant current source
09/21/1982US4350975 Dual bandwidth autozero loop for a voice frequency CODEC
09/21/1982US4350962 R.F. switched amplifier and A.M. modulator
09/21/1982US4350958 Impedance matching circuitry for radio frequency signal power amplifiers
09/21/1982US4350904 Current source with modified temperature coefficient
09/21/1982CA1132206A1 Signal-processing circuitry with intrinsic temperature insensitivity
09/15/1982EP0060026A1 Gain stage with operational amplifier and switched capacitor resistor equivalent circuit
09/14/1982US4349797 Phase-compensated integrated circuit
09/14/1982US4349788 Transient intermodulation distortion limiting circuit for an amplifier system
09/14/1982US4349786 Complementary differential amplifier circuit having source-follower driving circuits
09/14/1982CA1131564A1 Digital signal mixing apparatus
09/10/1982EP0037818A4 Current source having saturation protection.
09/07/1982US4348645 Buffer amplifier circuit used in wideband tuner
09/07/1982US4348643 Constant phase limiter
09/03/1982EP0044339A4 Current mirror circuit.
09/02/1982WO1982002986A1 Power amplifier
09/01/1982EP0059172A1 Device for detecting bioelectric signals, in particular electrocardiac signals
09/01/1982EP0058724A1 Power amplifier
08/1982
08/31/1982US4347531 Circuit converting a pair of differential input signals to single-ended output signals
08/31/1982US4347481 Pulse width modulated signal amplifier
08/31/1982US4347407 Electronic telephone circuit
08/31/1982CA1130874A1 Monolithic wideband amplifier
08/31/1982CA1130872A1 Pulse width modulated signal amplifier
08/25/1982EP0058448A1 Transconductance amplifier
08/25/1982EP0058443A1 Method of amplifying an analog low-frequency signal using a switching amplifier and switching amplifier for carrying out said method
08/24/1982US4346349 Multi-channel audio power amplifier
08/24/1982US4345502 Musical instrument performance amplifier
08/24/1982CA1130460A1 Delta modulation decoder
08/19/1982WO1982002804A1 Auto-zeroing operational amplifier circuit
08/17/1982US4345217 Cascode current source
08/17/1982US4345216 Compensation of base-current-related error in current mirror amplifier circuitry
08/17/1982US4345215 Audio frequency power amplifier circuit
08/17/1982US4345213 Differential-input amplifier circuitry with increased common-mode _voltage range
08/17/1982US4345166 Current source having saturation protection
08/11/1982EP0057239A1 Monolithic integrated push-pull driver circuit
08/10/1982CA1129507A1 High power audio frequency transmitter
08/03/1982US4342968 Alternating voltage amplifier circuit having a plurality of semiconductor amplifier elements operated in a grounded gate or grounded base configuration
08/03/1982US4342967 High voltage, high frequency amplifier
08/03/1982US4342966 Power amplifier circuitry
1 ... 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 ... 441