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Class Information
Number: 330/156
Name: Amplifiers > Bootstrap coupling
Description: Subject matter wherein the signal input is floating and is applied between the control grid and cathode of a vacuum tube amplifying device, with the cathode having an impedance between it and ground which maintains the cathode voltage above ground, by reason of the anode current flowing through such impedance.










Patents under this class:

Patent Number Title Of Patent Date Issued
8630598 Methods and apparatus for measuring and/or using transmitter and/or receiver IQ imbalance information and/or DC offset information Jan. 14, 2014
7852154 High precision follower device with zero power, zero noise slew enhancement circuit Dec. 14, 2010
7795977 Bootstrapped class AB CMOS output stage Sep. 14, 2010
7468622 Integrated circuit having a bootstrap charger Dec. 23, 2008
6879215 Synthetic circuit component and amplifier applications Apr. 12, 2005
5945877 Power amplifier with bootstrap voltage clamp Aug. 31, 1999
5892398 Amplifier having ultra-low distortion Apr. 6, 1999
5861775 Signal conditioning circuit for low amplitude, high common mode voltage input signals Jan. 19, 1999
5638026 High input impedance circuit and semiconductor integrated device provided therewith Jun. 10, 1997
5592123 Frequency stability bootstrapped current mirror Jan. 7, 1997
5521555 Ultra low noise optical receiver May. 28, 1996
5416442 Slew rate enhancement circuit for class A amplifier May. 16, 1995
5392001 Capacitively-coupled amplifier with improved low frequency response Feb. 21, 1995
5337011 Pre-amplifier Aug. 9, 1994
5315263 Push-pull amplifier having bootstrap capacitor isolation May. 24, 1994
5192920 High-sensitivity, low-noise transistor amplifier Mar. 9, 1993
5140279 Slew rate enhanced linear amplifier Aug. 18, 1992
5111084 Low loss drain pulser circuit for solid state microwave power amplifiers May. 5, 1992
4791383 High speed current amplifier buffer circuit Dec. 13, 1988
4791313 Bipolar transistor switching enhancement circuit Dec. 13, 1988
4786879 Attenuator circuit employing bootstrapping Nov. 22, 1988
4764732 Switchable mode amplifier for wide dynamic range Aug. 16, 1988
4752702 Bootstrap pilot circuit in N-MOS technology for capacitive loads Jun. 21, 1988
4746877 Direct-coupled wideband amplifier May. 24, 1988
4706035 High efficiency amplifier having a bootstrap capacitor Nov. 10, 1987
4706039 Amplifier arrangement Nov. 10, 1987
4688001 High Efficiency, low distortion amplifier Aug. 18, 1987
4646002 Circuit for high impedance broad band probe Feb. 24, 1987
4622498 Dynamic focus system cascode amplifier Nov. 11, 1986
4524331 High input impedance amplifier circuit Jun. 18, 1985
4500849 Low noise power amplifier circuit Feb. 19, 1985
4499432 Low voltage op amp bias optimizer Feb. 12, 1985
4492932 Amplifier circuit having a high-impedance input and a low-impedance output Jan. 8, 1985
4484147 Bootstrapped shunt feedback amplifier Nov. 20, 1984
4412183 AC Resistor attenuator and associated amplifier circuits Oct. 25, 1983
4390852 Buffer amplifier Jun. 28, 1983
4371847 Data transmission link Feb. 1, 1983
4268796 Linear amplifier with distortion correction May. 19, 1981
4206419 Power amplifier Jun. 3, 1980
4125814 High-power switching amplifier Nov. 14, 1978
RE29286 Power amplifier with a bootstrapped driver stage Jun. 28, 1977
4000474 Signal amplifier circuit using a field effect transistor having current unsaturated triode vacuum tube characteristics Dec. 28, 1976











 
 
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