| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 10/11/1983 | US4409561 Operational amplifier output stage driven by a single ended gain stage |
| 10/11/1983 | US4409558 Gain compensated transistor amplifier |
| 10/11/1983 | US4409557 Bandpass filter with an active element |
| 10/05/1983 | EP0090572A2 Semiconductor sense-amplifier circuitry |
| 10/05/1983 | EP0090543A1 Differential amplifier with improved linear amplification |
| 10/05/1983 | EP0090104A1 Dual polarity switchable operational amplifier circuit |
| 10/04/1983 | US4408167 Current amplifier stage with diode interstage connection |
| 10/04/1983 | CA1154690A1 Digitally driven combination coils for electrodynamic acoustical transducers |
| 09/27/1983 | US4406990 Direct coupled DC amplification circuit |
| 09/27/1983 | US4406989 Automatic level control circuit |
| 09/20/1983 | US4405902 Push-pull output stage |
| 09/20/1983 | US4405901 Signal processing circuit |
| 09/20/1983 | US4405900 Operational amplifier |
| 09/20/1983 | CA1154106A1 Low-pass filter for low-frequency signals |
| 09/15/1983 | WO1983003177A1 Gain regulation circuit |
| 09/13/1983 | US4404528 Output amplifier |
| 09/13/1983 | US4404526 High fidelity audio encoder/amplifier |
| 09/13/1983 | US4404525 Switched capacitor gain stage with offset and switch feedthrough cancellation scheme |
| 09/13/1983 | US4404478 Process for controlling a darlington circuit and a low-loss darlington circuit |
| 09/07/1983 | EP0087841A1 Use of a dual gate field-effect transistor with an interposed conductor for the rejection of a frequency band |
| 09/07/1983 | EP0087583A1 Integrated power circuit with current sensing means |
| 09/07/1983 | EP0087535A1 Apparatus and method for measuring optically active materials |
| 09/06/1983 | US4403347 Antenna tuning circuit for AM radio receiver |
| 09/06/1983 | US4403200 Output stage for operational amplifier |
| 09/06/1983 | US4403198 Biasing circuit for MOSFET power amplifiers |
| 09/06/1983 | US4403197 Amplifier employing digital modulator circuit |
| 09/06/1983 | US4403196 Pulse width modulated power amplifier with differential connecting line voltage drop comparators |
| 09/06/1983 | US4403195 Parasitic insensitive switched capacitor operational amplifier circuit |
| 08/31/1983 | EP0087178A1 Output amplifier for a transmitting tube |
| 08/30/1983 | US4401954 Power amplifier |
| 08/30/1983 | US4401953 High stability amplifier |
| 08/30/1983 | US4401952 Microwave switched amplifier/multiplier |
| 08/30/1983 | US4401951 Bias circuit for use in a single-ended push-pull circuit |
| 08/30/1983 | US4401950 Low-voltage, complementary symmetry class B amplifier arrangement |
| 08/30/1983 | CA1153076A1 Resonator coupled differential amplifier |
| 08/24/1983 | EP0086397A2 Differential current distributing circuit |
| 08/23/1983 | US4400637 Integrator with sampling stage |
| 08/23/1983 | CA1152582A1 Current mirror circuit |
| 08/17/1983 | EP0085872A1 Integrable differential amplifier |
| 08/16/1983 | US4399375 Current stabilizer comprising enhancement field-effect transistors |
| 08/10/1983 | EP0085393A1 Microwave amplifier device |
| 08/09/1983 | US4398160 Current mirror circuits with field effect transistor feedback |
| 08/09/1983 | US4398159 Switch mode - class B power amplifier |
| 08/09/1983 | US4398104 Low drift tuning circuit |
| 08/09/1983 | US4398099 Switched-capacitance amplifier, a switched-capacitance filter and a charge-transfer filter comprising an amplifier of this type |
| 08/09/1983 | CA1151738A1 Circuit for converting single-ended input signals to a pair of differential output signals |
| 08/02/1983 | US4396891 Gain control circuit |
| 08/02/1983 | CA1151331A1 Amplifier for use in a line circuit |
| 07/26/1983 | US4395687 Adjustable phase shifter |
| 07/26/1983 | US4395682 Differential output circuit |
| 07/26/1983 | US4395681 System for compensating the offset voltage of a differential amplifier |
| 07/26/1983 | US4395647 Half-wave signal isolator with means for controlling flux in the coupling transformer |
| 07/26/1983 | CA1150868A1 Electronic telephone circuit |
| 07/20/1983 | EP0083727A1 Amplitude modulator |
| 07/20/1983 | EP0083714A1 Switching amplifier |
| 07/19/1983 | US4394625 Semiconductor integrated circuit device |
| 07/13/1983 | EP0083529A2 Amplifier arrangement for large voltage swing, and voltage source with such an arrangement |
| 07/12/1983 | US4393355 Operational amplifier |
| 07/12/1983 | US4393353 Negative feedback amplifying circuit having voltage negative feedback and current negative feedback circuits |
| 07/12/1983 | US4393351 Offset compensation for switched capacitor integrators |
| 07/12/1983 | US4393347 Common mode voltage rejection circuit |
| 07/12/1983 | CA1149980A1 Bridge amplifier |
| 07/12/1983 | CA1149892A1 Amplifiers |
| 07/12/1983 | CA1149891A1 Efficient power amplifier with staggered power supply voltages |
| 07/12/1983 | CA1149889A1 Circuit arrangement useful in developing decoupled operating voltages for if amplifier stages of an integrated circuit |
| 07/12/1983 | CA1149887A1 Class "b" type amplifier |
| 07/12/1983 | CA1149878A1 Buffer amplifier circuit used in wideband tuner |
| 07/05/1983 | US4392112 Low drift amplifier |
| 07/05/1983 | US4392079 Method of adjusting phase shift in amplification multicavity klystron and device therefor |
| 07/05/1983 | CA1149474A1 Circuit converting a pair of differential input signals to single-ended output signals |
| 06/29/1983 | EP0082403A2 Transistorizd read/write amplifier for a magnetic storage |
| 06/29/1983 | EP0082282A1 Power driving circuit |
| 06/29/1983 | EP0082201A1 Power amplifier capable of simultaneous operation in two classes |
| 06/28/1983 | US4390852 Buffer amplifier |
| 06/28/1983 | US4390851 Monolithic microwave amplifier having active impedance matching |
| 06/28/1983 | US4390850 Operational amplifier having improved slew rate/bandwidth characteristics |
| 06/28/1983 | US4390849 Audio power amplifier with class-D push-pull output stage |
| 06/28/1983 | US4390848 Linear transconductance amplifier |
| 06/28/1983 | US4390847 Muting device |
| 06/28/1983 | US4390846 Power amplifier connection |
| 06/28/1983 | CA1149081A1 Reference voltage generator device |
| 06/28/1983 | CA1149029A1 Amplifier arrangement |
| 06/21/1983 | US4389674 Preamplifier for low voltage signals in the presence of high voltage noise |
| 06/21/1983 | US4389620 Current transfer amplifier |
| 06/21/1983 | US4389619 Adjustable-gain current amplifier for temperature-independent trimming |
| 06/15/1983 | EP0081268A1 Balancing compensation in differential amplifiers with a single-ended drive |
| 06/14/1983 | US4388539 Integrated circuit comprising a plurality of voltage-current converters |
| 06/14/1983 | CA1148222A2 Transistorized single ended push-pull amplifier having no cross-over distortion |
| 06/08/1983 | EP0080771A1 Apparatus for driving one or more transducer units |
| 06/08/1983 | EP0080567A2 Semiconducter integrated current source |
| 06/08/1983 | EP0080538A1 Amplifier printed circuit board and mounting system therefor |
| 06/07/1983 | US4387346 Bias circuit for a microwave transistor power amplifier |
| 06/07/1983 | US4387345 Precision gain AC coupled operational amplifier |
| 06/07/1983 | US4387309 Input stage for N-channel junction field effect transistor operational amplifier |
| 06/07/1983 | CA1147805A1 Temperature compensated current source |
| 06/01/1983 | EP0080242A1 Amplifier circuit with a symmetric input stage |
| 06/01/1983 | EP0080209A1 Transistor circuit including biasing circuit |
| 05/31/1983 | USRE31263 Amplifier circuits |
| 05/31/1983 | US4386378 High gain, current mode preamplifier |
| 05/31/1983 | US4386325 Circuit arrangement for reproducing in an output circuit a current flowing in an input circuit |