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)
12/1994
12/06/1994	US5371405 High-frequency high-power transistor
12/06/1994	CA2009775C Audio amplifier with phase modulated pulse width modulation
12/06/1994	CA1333414C Mos analog nor amplifier
12/05/1994	CA2124976A1 Class 'd' audio speaker amplifier circuit with state variable feedback control
11/1994
11/30/1994	EP0362217B1 Output amplifier
11/29/1994	US5369313 High frequency gain differential signal circuit employing a level shift device
11/29/1994	US5369309 Analog-to-digital converter and method of fabrication
11/24/1994	WO1994027363A1 Circuitry for amplifier
11/24/1994	WO1994027362A1 Circuitry for amplifier
11/23/1994	EP0625823A1 Hyperfrequency semiconductor device with stabilizing means
11/23/1994	EP0625822A2 Semiconductor integrated circuit
11/23/1994	EP0625798A1 Opto-electronic integrated circuit
11/22/1994	US5367412 Recording/reproducing circuit and recording/reproducing apparatus having the same circuit
11/22/1994	US5367267 Broadband amplifier having individual input circuits with pluralities of capacitors and resistors
11/17/1994	EP0624952A2 Integrated circuit with a low-power mode and clock amplifier circuit for same
11/15/1994	US5365279 Using D-C feedback with on-chip filtering to balance I-F drive to second detector in monolithic IC
11/15/1994	US5365200 CMOS gauge driver
11/15/1994	US5365199 Amplifier with feedback having high power supply rejection
11/15/1994	US5365198 Wideband amplifier circuit using npn transistors
11/15/1994	US5365197 Low-noise distributed amplifier
11/15/1994	US5365193 Circuit for neutralizing thermal drift in a transconductance stage
11/15/1994	US5365192 AC-coupled single-ended or differential-input radio frequency amplifier integrated circuit
11/15/1994	US5365191 Offset reducing circuit for differential amplifier
11/15/1994	US5365188 Self-configurable, dual bridge, power amplifier
11/10/1994	DE4320061C1 Amplifier output stage
11/08/1994	US5363072 High-frequency power divider-combiner
11/08/1994	US5363064 Preamplifier for optical communication having a gain control circuit
11/08/1994	US5363063 Amplifier with an output current limiter
11/08/1994	US5363061 Operational transconductance amplifier with matched outputs
11/08/1994	US5363060 Microwave amplifier
11/08/1994	US5363059 Transconductance amplifier
11/08/1994	US5363058 Amplifier having linear input-output characteristics and high efficiency
11/08/1994	US5363000 Solid-state image sensing apparatus
11/08/1994	CA2050846C Hybrid matrix amplifier systems, and methods for making thermally-balanced hybrid matrix amplifier systems
11/08/1994	CA2024142C Balun transformers
11/08/1994	CA2009405C Microwave integrated circuit using a distributed line with a variable effective length
11/02/1994	EP0622896A1 Sound system gain and equalization circuit
11/02/1994	EP0622895A1 Communication apparatus utilizing power amplifier
11/02/1994	EP0622894A2 Semiconductor power amplifier integrated circuit
11/02/1994	EP0622638A2 Modular solid-state radar transmitter apparatus and method for producing variable waveforms
11/02/1994	EP0225924B1 Electronic memory element with a lambda transistor
11/02/1994	CN1094548A Method and device for reducing distortion of power-amplifier speaker
11/01/1994	USRE34771 Voltage follower circuit having improved dynamic range
11/01/1994	US5361042 Compensated offset voltage, low gain, high bandwidth, full swing, wide common mode range, CMOS differential voltage amplifier
11/01/1994	US5361041 Push-pull amplifier
11/01/1994	US5361040 Self limiting and self biasing operational transconductance amplifier
11/01/1994	US5361038 Active load applications for distributed circuits
11/01/1994	US5361037 Isolation amplifier with capacitive coupling
11/01/1994	US5361007 Apparatus for controlling consumption power for GaAs FET
10/1994
10/29/1994	CA2121299A1 Sound system gain and equalization circuit
10/27/1994	WO1994024761A1 Differential audio line receiver
10/26/1994	EP0621688A2 High-impedance circuit
10/26/1994	EP0620954A1 Switching amplifier
10/25/1994	US5359652 Tone receiver comprising a switch capacitor zero crossing detector
10/25/1994	US5359296 Self-biased cascode current mirror having high voltage swing and low power consumption
10/25/1994	US5359295 Power amplifier
10/25/1994	US5359294 Charge-balanced switched-capacitor circuit and amplifier circuit using same
10/25/1994	CA2027695C High frequency transmission line circuit
10/19/1994	EP0620646A1 Zero bias current low-side driver control circuit
10/19/1994	EP0620639A1 Variable gain amplifier for low supply voltage
10/19/1994	EP0620638A2 Integrated circuit amplifier arrangements
10/19/1994	EP0620637A1 Very high speed precision amplifier
10/19/1994	EP0620513A1 Balanced voltage-to-current converter with quiescent current control
10/18/1994	US5357214 Methods and apparatus for microphone preamplification
10/18/1994	US5357213 High-frequency wide band amplifier having reduced impedance
10/18/1994	US5357211 Pin driver amplifier
10/18/1994	US5357207 Sequential amplifier
10/18/1994	US5357206 Sequential amplifier
10/18/1994	US5357189 Analog input apparatus
10/18/1994	US5357188 Current mirror circuit operable with a low power supply voltage
10/18/1994	US5357148 Device for biasing an RF device operating in quasi-linear modes with voltage compensation
10/13/1994	WO1994023504A1 Radio repeater
10/13/1994	WO1994023491A1 Power amplifier bias control circuit and method
10/13/1994	DE4311268A1 Amplifier unit
10/13/1994	CA2157495A1 Radio repeater
10/12/1994	EP0619647A1 Amplifier architecture and application for a band gap voltage generator
10/12/1994	EP0619646A2 Amplifier arrangement
10/12/1994	CN2179665Y Wire TV amplifier
10/11/1994	US5355095 Broadband microwave integrated circuit amplifier with capacitive neutralization
10/11/1994	US5355094 Feedback differential amplifier circuit
10/11/1994	US5355093 Compact microwave and millimeter wave amplifier
10/10/1994	CA2120884A1 Zero bias current low-side driver control circuit
10/06/1994	DE4410498A1 Power amplifier
10/06/1994	DE4310532A1 Push-pull amplifier for an active dipole antenna
10/05/1994	EP0618691A1 Device for evaluation of the transmission quality of an optical amplifier equipment
10/05/1994	EP0618674A2 Voltage-to-current conversion circuit
10/05/1994	EP0618673A2 A differential amplification circuit wherein a DC level at an output terminal is automatically adjusted and a power amplifier wherein a BTL drive circuit is driven by a half wave
10/05/1994	EP0617917A1 Receiver for differential signals
10/04/1994	US5352992 Amplifier circuit
10/04/1994	US5352990 Power matching network comprising an intermediate transmission line between a transistor amplifier output end and at least one open-end line
10/04/1994	US5352989 Low input resistance amplifier stage
10/04/1994	US5352986 Closed loop power controller
10/04/1994	US5352944 Apparatus and method for producing a temperature-independent current signal in an automatic gain control circuit
10/04/1994	US5352937 Differential comparator circuit
09/1994
09/28/1994	EP0617508A1 Combination drive-summing circuit for rail-to-rail differential amplifier
09/27/1994	US5351012 Low input resistance current-mode feedback operational amplifier input stage
09/27/1994	US5351011 Low noise, low distortion MOS amplifier circuit
09/21/1994	EP0616439A2 Apparatus for simultaneously detecting a plurality of discrete laser modulation frequencies
09/21/1994	EP0616432A2 Sense amplifier
09/21/1994	EP0616423A1 Differential pair arrangement

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