| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/25/1990 | DE3910466A1 Data output buffer circuit for byte-wide memory |
| 01/24/1990 | EP0351719A2 Temperature compensated bipolar circuits |
| 01/24/1990 | EP0351709A2 Differential amplifier with controllable power consumption |
| 01/24/1990 | EP0351708A2 Differential amplifier with controllable power consumption |
| 01/24/1990 | EP0351639A2 Input circuit for a high-frequency amplifier |
| 01/23/1990 | US4896372 Pulse width modulator for AM-RF transmitter |
| 01/23/1990 | US4896121 Current mirror for depletion-mode field effect transistor technology |
| 01/23/1990 | US4896120 Instrumentation amplifier arrangement |
| 01/23/1990 | US4896118 Variable gain current-to-voltage amplifier with gain independent test mode operation |
| 01/23/1990 | CA1264826A1 Composite audio amplifier |
| 01/17/1990 | EP0350857A1 Fully-differential reference voltage source |
| 01/17/1990 | EP0350518A1 Photometer |
| 01/17/1990 | CN2051418U Linear wide frequency band amplifier |
| 01/16/1990 | US4894622 Integrated current-mirror arrangement comprising vertical transistors |
| 01/16/1990 | US4894621 Circuit for five level waveform synthesis |
| 01/16/1990 | US4894586 Crossed-field amplifier bias circuit and method for improved starting |
| 01/16/1990 | CA1264486A1 Matching circuit of a microwave device |
| 01/11/1990 | WO1990000326A1 Electronic devices and signal comparator using same |
| 01/10/1990 | EP0349981A2 Logic circuit |
| 01/10/1990 | EP0349954A2 Voltage clamped differential to single ended converter circuit |
| 01/10/1990 | EP0349743A2 Power amplifier |
| 01/10/1990 | EP0349732A1 Power amplifier |
| 01/09/1990 | US4893093 Switched power splitter |
| 01/09/1990 | US4893092 Operational amplifier circuit |
| 01/09/1990 | US4893091 Complementary current mirror for correcting input offset voltage of diamond follower, especially as input stage for wide-band amplifier |
| 01/09/1990 | US4893090 Amplifier arrangement |
| 01/09/1990 | US4893013 Detector and localizer for low energy radiation emissions |
| 01/03/1990 | EP0349205A2 Differential analog comparator |
| 01/03/1990 | EP0348998A1 Semiconductor integrated circuit including differential transistor circuit having a pair of FETs |
| 01/02/1990 | US4891607 Low distortion drive amplifier |
| 01/02/1990 | US4891606 Photocurrent compensation using active devices |
| 01/02/1990 | US4891604 High speed low input current voltage follower stage |
| 12/27/1989 | EP0348079A2 Symmetric integrated amplifier with controlled DC offset voltage |
| 12/27/1989 | CN1006269B Multi-level power amplifying circuitry for portable radio transoeivers |
| 12/27/1989 | CA1264067A1 Multi-level power amplifying circuitry for portable radio transceivers |
| 12/26/1989 | US4890331 Specialized amplifier systems for musical instruments |
| 12/26/1989 | US4890069 Gallium arsenide power monolithic microwave integrated circuit |
| 12/26/1989 | US4890068 Open-loop current amplifiers having improved gain characteristics |
| 12/26/1989 | US4890067 Common base configuration for an fT doubler amplifier |
| 12/26/1989 | US4890052 Temperature constant current reference |
| 12/26/1989 | US4890014 Sequential operation differential current amplifier |
| 12/20/1989 | EP0347111A2 Metal-semiconductor field effect transistor device |
| 12/20/1989 | EP0346978A1 Integrated current-mirror arrangement comprising vertical transistors |
| 12/19/1989 | US4888563 Audio amplifier having a low-noise input stage |
| 12/19/1989 | US4888562 Low noise, high speed current or voltage amplifier |
| 12/19/1989 | US4888561 Amplifier and display using the former |
| 12/19/1989 | US4888559 Correction arrangement for an amplifier |
| 12/13/1989 | EP0346020A2 Drive amplifier circuit |
| 12/12/1989 | US4887049 Solid state space harmonic amplifier |
| 12/12/1989 | US4887048 Differential amplifier having extended common mode input voltage range |
| 12/12/1989 | US4887047 Current sense amplifier with low, nonlinear input impedance and high degree of signal amplification linearity |
| 12/12/1989 | US4887045 Sum/differential signal processing circuit |
| 12/06/1989 | EP0344855A1 Transconductance circuit |
| 12/05/1989 | US4885550 Signal input to differential output amplifier |
| 12/05/1989 | US4885484 Voltage clamped differential to single ended converter circuit |
| 12/05/1989 | US4885477 Differential amplifier and current sensing circuit including such an amplifier |
| 11/30/1989 | WO1989011754A1 High gain miniature crossed-field amplifier |
| 11/30/1989 | DE3904402A1 Differential amplifier circuit |
| 11/29/1989 | EP0343730A2 Wideband class AB CRT cathode driver |
| 11/29/1989 | CN2048650U Two-way amplifier communication signal |
| 11/28/1989 | US4884039 Differential amplifier with low noise offset compensation |
| 11/28/1989 | US4884038 Transconductance amplifier with transformer coupled forward feed |
| 11/23/1989 | DE3816140A1 Video signal commutator |
| 11/21/1989 | US4882664 Synchronous modulation circuit |
| 11/21/1989 | US4882548 Low distortion current mirror |
| 11/21/1989 | US4882482 Thermally stabilized optical preamplifier |
| 11/21/1989 | CA1263178A1 Noise and arc suppression filter for a display driver stage |
| 11/16/1989 | DE3915418A1 Mixer arrangements |
| 11/15/1989 | EP0341691A1 Detection voltage output circuit of charge generation type sensing device |
| 11/15/1989 | EP0341531A2 Controllable wide band amplifier |
| 11/15/1989 | EP0341363A2 Precision operational amplifier |
| 11/14/1989 | US4881046 Microwave linear amplifier with very wide pass band |
| 11/14/1989 | US4881045 Transistor amplifier for high slew rates and capacitive loads |
| 11/14/1989 | US4881044 Amplifying circuit |
| 11/14/1989 | US4881043 Variable gain transconductance amplifier and variable bandwidth filter |
| 11/08/1989 | EP0340439A2 Switched capacitor amplifier circuit |
| 11/08/1989 | EP0340258A1 Microwave integrated distributed amplifier with field emission triodes |
| 11/07/1989 | US4879661 Bi-directional circuit to interface between a low current device and high current tester |
| 11/07/1989 | US4879610 Protective circuit for a magnetoresistive element |
| 11/07/1989 | US4879526 Integrated audio amplifier electronically commutable from a single ended or stereo configuration to a balanced or bridge configuration and viceversa |
| 11/07/1989 | US4879525 High gain RF amplifier with directional coupler feedback |
| 11/07/1989 | US4879524 Constant current drive circuit with reduced transient recovery time |
| 11/07/1989 | US4879523 High accuracy, high impedance differential to single-ended current converter |
| 11/07/1989 | US4879522 Integrated complementary push-pull B final stage |
| 11/07/1989 | US4879521 Differential amplifier |
| 11/07/1989 | US4879520 High accuracy current source and high accuracy transconductance stage |
| 11/02/1989 | WO1989010656A1 Amplifier circuit |
| 11/02/1989 | WO1989010649A1 Means for reducing damage to jfets from electrostatic discharge events |
| 11/02/1989 | EP0340182A1 Biasing network for integrated pairs of amplifiers internally commutable from a single-ended to a balanced configuration and viceversa |
| 11/02/1989 | EP0339738A1 Current divider circuit |
| 11/02/1989 | EP0339481A2 Wideband amplifier |
| 10/31/1989 | US4878033 Low noise microwave amplifier having optimal stability, gain, and noise control |
| 10/31/1989 | US4878032 Amplifier stage with collector output |
| 10/31/1989 | US4877953 Current-voltage converter circuit |
| 10/25/1989 | EP0338316A2 Bandpass amplifier |
| 10/25/1989 | CN1036678A Video display driver apparatus |
| 10/25/1989 | CN1036668A Antenna which is electronically reconfigurable in transmission |
| 10/24/1989 | US4876516 High gain distributed amplifiers |
| 10/24/1989 | CA1262476A1 A modified cascode amplifier |
| 10/24/1989 | CA1262474A1 Inductive circuit arrangements |