| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 11/22/1983 | US4417216 Operational amplifier |
| 11/22/1983 | US4417165 Muting circuit |
| 11/22/1983 | US4417160 Offset compensation apparatus for biasing an analog comparator |
| 11/22/1983 | US4417159 Diode-transistor active pull up driver |
| 11/22/1983 | CA1157535A1 Amplifiers |
| 11/21/1983 | EP0050135A4 Temperature compensating pressure sensor amplifier circuits. |
| 11/15/1983 | US4415868 One and one half pole audio power amplifier frequency compensation |
| 11/15/1983 | US4415865 Circuit arrangement for controlling the quiescent current in a class AB amplifier stage |
| 11/15/1983 | US4415803 Optical receiver with improved dynamic range |
| 11/10/1983 | WO1983003931A1 A circuit for a high impedance signal source |
| 11/09/1983 | EP0093140A1 Amplifier suitable for low supply voltage operation. |
| 11/08/1983 | US4414688 RF-Input stage |
| 11/08/1983 | US4414686 Compensation of nonlinearities of transmission members in a radio relay system |
| 11/08/1983 | US4414514 Two signal amplifying system |
| 11/08/1983 | US4414513 Amplifier stage for pulse-width-modulated signals |
| 11/01/1983 | US4413300 Line driver circuit having a protective circuit against excess currents |
| 11/01/1983 | CA1156320A1 Amplifier protection circuit |
| 10/26/1983 | EP0092206A2 Amplifier with broad dynamic range and improved power efficiency |
| 10/25/1983 | US4412337 Power amplifier and envelope correction circuitry |
| 10/25/1983 | US4412185 Feedforward amplifiers |
| 10/19/1983 | EP0091711A1 Narrow-band amplifier, in particular a television intermediate-frequency amplifier |
| 10/18/1983 | US4410859 Signal amplifier circuit arrangement with output current limiting function |
| 10/18/1983 | US4410857 Operational amplifier with feed-forward compensation circuit |
| 10/18/1983 | CA1155503A1 High-efficiency low-distortion amplifier |
| 10/18/1983 | CA1155502A1 Supply-voltage driver for a differential amplifier |
| 10/18/1983 | CA1155485A1 Overvoltage protection circuit arrangement for line amplifiers |
| 10/12/1983 | EP0091203A1 Overload protection device |
| 10/11/1983 | US4409560 Output transient suppression circuit |
| 10/11/1983 | US4409559 Supply voltage controlled stereophonic amplifier system |
| 10/11/1983 | US4409558 Gain compensated transistor amplifier |
| 10/11/1983 | US4409557 Bandpass filter with an active element |
| 10/11/1983 | US4409556 Amplifier arrangement with very low distortion |
| 10/11/1983 | US4409500 Operational rectifier and bias generator |
| 10/05/1983 | EP0090543A1 Differential amplifier with improved linear amplification |
| 10/04/1983 | US4408130 Temperature stabilized voltage reference |
| 09/27/1983 | US4406990 Direct coupled DC amplification circuit |
| 09/27/1983 | US4406989 Automatic level control circuit |
| 09/20/1983 | US4405900 Operational amplifier |
| 09/20/1983 | US4405832 Circuit for distorting an audio signal |
| 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 |
| 09/06/1983 | US4403200 Output stage for operational amplifier |
| 09/06/1983 | US4403198 Biasing circuit for MOSFET power amplifiers |
| 08/31/1983 | EP0087180A1 Preamplifier |
| 08/31/1983 | EP0087178A1 Output amplifier for a transmitting tube |
| 08/31/1983 | EP0086793A1 Electrical converter |
| 08/30/1983 | US4402029 Protective circuit for output transformer-less circuit |
| 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 | CA1153076A1 Resonator coupled differential amplifier |
| 08/23/1983 | US4400637 Integrator with sampling stage |
| 08/23/1983 | CA1152585A1 Darlington amplifier with excess current protection |
| 08/10/1983 | EP0085600A1 Device for the correction of intermodulation produced by an amplifier for high-frequency signals with peak value regulation |
| 08/09/1983 | US4398160 Current mirror circuits with field effect transistor feedback |
| 08/02/1983 | US4396891 Gain control circuit |
| 07/26/1983 | CA1150785A1 Mos voltage divider |
| 07/20/1983 | EP0083953A1 MOS Power-on reset circuit |
| 07/19/1983 | US4394624 Channelized feed-forward system |
| 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 | 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 | US4392252 Signal transmission system comprising a monolinearity product precorrection device |
| 06/29/1983 | EP0082282A1 Power driving circuit |
| 06/28/1983 | US4390852 Buffer amplifier |
| 06/28/1983 | US4390851 Monolithic microwave amplifier having active impedance matching |
| 06/28/1983 | US4390848 Linear transconductance amplifier |
| 06/28/1983 | US4390846 Power amplifier connection |
| 06/28/1983 | CA1149029A1 Amplifier arrangement |
| 06/28/1983 | CA1149027A1 Circuit arrangement for eliminating turn-on and turn-off clicks in an amplifier |
| 06/22/1983 | EP0082024A1 Improvements in and relating to electrical amplifier arrangements |
| 06/21/1983 | US4389674 Preamplifier for low voltage signals in the presence of high voltage noise |
| 06/21/1983 | US4389618 Adaptive feed-forward system |
| 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 |
| 06/08/1983 | EP0080771A1 Apparatus for driving one or more transducer units |
| 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 | US4387270 Method of harmonizing the impedances of an audio amplifier and loudspeaker interconnected therewith |
| 06/07/1983 | CA1147805A1 Temperature compensated current source |
| 06/01/1983 | EP0080209A1 Transistor circuit including biasing circuit |
| 05/31/1983 | US4386378 High gain, current mode preamplifier |
| 05/24/1983 | US4385337 Circuit including an MOS transistor whose gate is protected from oxide rupture |
| 05/18/1983 | EP0079098A1 Amplifier with signal-dependent voltage supply source |
| 05/18/1983 | EP0079009A2 E.C.G. amplifier circuit |
| 05/18/1983 | EP0078884A2 Equalizer |
| 05/17/1983 | US4384261 Class A complementary single-ended push-pull amplifier |
| 05/17/1983 | CA1146640A1 Amplifier arrangement with parallel-operated amplifier sections |
| 05/11/1983 | WO1983001714A1 Amplifier suitable for low supply voltage operation |
| 05/11/1983 | EP0078347A1 Telecommunication line high-efficiency operational amplifier |
| 05/10/1983 | US4383222 Half-wave signal isolator with compensator means to reduce temperature-dependent effects |
| 05/04/1983 | EP0078189A1 Hyperfrequency power transmitter with field effect transistors, particularly for Doppler radar |
| 05/04/1983 | EP0077979A1 Method and circuit for the compensation of induced interference voltages |