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| Number | Title | Issue Date |
| 7142059 | Amplifier arrangement The invention provides an amplifier arrangement which is of multistage design. The output transistor in the output stage has a coupling path between its control input and its controlled path. The coupling path comprises a series circuit comprising a Miller compensat... | 11/28/2006 |
| 6909322 | Stage of a power generator of high frequency current Output amplifier stage (1) of a high frequency generator (1) with tube (2) operating in class B or C has its output (5) looped back on the input (4) by means of a coaxial line (31) with a length equal to approximately the wa... | 06/21/2005 |
| 6879215 | Synthetic circuit component and amplifier applications Synthetic circuit elements and amplifier applications for synthetic circuit elements are provided. The synthetic circuit elements disclosed herein may be configured to compensate for some or all of the parasitic capacitance normally associated with circuit elements ... | 04/12/2005 |
| 5877654 | Class a amplifier with a digitally programmable miller compensation network A class A driver circuit (30) has an output stage with a plurality of selectable current sources (42). The selectable current sources (42) are used to optimize the drive capability of the output stage of the class A driver circuit (30) for different appli... | 03/02/1999 |
| 5729176 | Linear differential gain stage A linear differential gain stage (31) has a first input (32), a second input (33), a first output (34), and a second output (35). A differential input voltage is coupled to an input differential transistor pair (39,40). Voltage compensation circuits (53,5... | 03/17/1998 |
| 5392001 | Capacitively-coupled amplifier with improved low frequency response A capacitively-coupled amplifier circuit includes an amplifier for receiving an input signal via a coupling capacitance and for amplifying the input signal to produce an output signal. A resistor provides a bias voltage to the amplifier. The resistor is b... | 02/21/1995 |
| 4910476 | High-frequency amplifier with automatic neutrodyning circuit High frequency amplifiers require neutrodyning to prevent the risks of self-oscillation generated by the existence of stray capacitances among the electrodes of the active component used in the amplifier. Grid tube amplifiers (such as triodes, tetrodes, p... | 03/20/1990 |
| 4904951 | Method and circuit for reducing effects of distributed capacitance associated with large thin film resistors A technique for reducing phase shift of a signal passing through a large thin film resistor on an insulating layer includes applying a signal to one terminal of the thin film resistor and also to one end of an underlying doped epitaxial region. The opposi... | 02/27/1990 |
| 4751471 | Amplifying circuit particularly adapted for amplifying a biopotential input signal An amplifying circuit for amplifying a bipotential input signal, including an insulating housing having a conductive input contact mounted on the housing and adapted to engage a human body so that the bipotential input signal applied to the contact; a lea... | 06/14/1988 |
| 4588959 | Hum neutralization circuit A method and hum neutralization circuit for a grounded grid triode radio frequency amplifier in which the hum signal is detected and a portion thereof related to the amplification of the amplifier applied to the cathode to oppose, when amplified, in ampli... | 05/13/1986 |
| 4246542 | Filter using a state-variable biquadratic transfer function circuit A second order section of an electronic filter comprises three cascaded amplifier stages and a compensating amplifier stage coupled between the first and second amplifier stages. The compensating stage introduces a leading phase shift at high frequencies ... | 01/20/1981 |
