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Class Information
Number: 330/269
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including push-pull amplifier > Having field effect transistor
Description: Subject matter wherein a field effect transistor (FET) is utilized in the circuit.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7346318 |
High frequency power amplifier component and radio communication system |
Mar. 18, 2008 |
| 7342448 |
Power output stage |
Mar. 11, 2008 |
| 7271655 |
Power amplifier end stage |
Sep. 18, 2007 |
| 7248115 |
Differential amplifier operable in wide range |
Jul. 24, 2007 |
| 7215201 |
Integrated circuit having a low power, gain-enhanced, low noise amplifying circuit |
May. 8, 2007 |
| 7212070 |
Circuit and method of reducing noise in an RF power amplifier |
May. 1, 2007 |
| 7161431 |
Class B amplifier with process variation independent deadband |
Jan. 9, 2007 |
| 7154332 |
Differential amplifier, data driver and display device |
Dec. 26, 2006 |
| 7145393 |
Operational amplifier with class-AB+B output stage |
Dec. 5, 2006 |
| 7145392 |
Methods and apparatus for variable harmonic distortion |
Dec. 5, 2006 |
| 7119616 |
Method and apparatus for a fully differential amplifier output stage |
Oct. 10, 2006 |
| 6999740 |
Semiconductor integrated circuit and radio communication apparatus using same |
Feb. 14, 2006 |
| 6930551 |
Zero voltage class AB minimal delay output stage and method |
Aug. 16, 2005 |
| 6927633 |
High frequency circuit with thin film resistor |
Aug. 9, 2005 |
| 6911866 |
Method and device for switch-on current limiting in push-pull amplifying power stages |
Jun. 28, 2005 |
| 6909327 |
Amplifier |
Jun. 21, 2005 |
| 6794942 |
Electrical circuits |
Sep. 21, 2004 |
| 6788147 |
Operational amplifier with class-AB+B output stage |
Sep. 7, 2004 |
| 6759903 |
Amplifier |
Jul. 6, 2004 |
| 6696895 |
Push-pull amplifier |
Feb. 24, 2004 |
| 6636111 |
Bootstrap circuit to cancel input bias currents of a differential amplifier over most of common-mode input voltage range |
Oct. 21, 2003 |
| 6501252 |
Power supply circuit |
Dec. 31, 2002 |
| 6462620 |
RF power amplifier circuitry and method for amplifying signals |
Oct. 8, 2002 |
| 6384675 |
Differencing non-overlapped dual-output amplifier circuit |
May. 7, 2002 |
| 6369653 |
Apparatus and methods for improved control of quiescent state of output transistors in a class AB amplifier |
Apr. 9, 2002 |
| 6268771 |
Amplifying device |
Jul. 31, 2001 |
| 6194774 |
Inductor including bonding wires |
Feb. 27, 2001 |
| 6144257 |
Bus control buffer amplifier |
Nov. 7, 2000 |
| 6144256 |
Wide bandwidth, current sharing, Mosfet audio power amplifier with multiple feedback loops |
Nov. 7, 2000 |
| 6137273 |
Circuit for supplying a high precision current to an external element |
Oct. 24, 2000 |
| 6111464 |
Amplifier having bias circuit self-compensating for VGS process variation and IDS aging |
Aug. 29, 2000 |
| 6046641 |
Parallel HV MOSFET high power stable amplifier |
Apr. 4, 2000 |
| 5841321 |
Amplifying circuit using offset value variable circuit |
Nov. 24, 1998 |
| 5838196 |
Transformer-coupled amplifier |
Nov. 17, 1998 |
| 5783970 |
Driver for N-channel VFET output stage of power amplifier |
Jul. 21, 1998 |
| 5781071 |
Transformers and amplifiers |
Jul. 14, 1998 |
| 5742205 |
Field effect transistor cable television line amplifier |
Apr. 21, 1998 |
| 5726603 |
Linear RF power amplifier |
Mar. 10, 1998 |
| 5684432 |
Amplifier output stage having enhanced drive capability |
Nov. 4, 1997 |
| 5652545 |
Wide-band amplifier |
Jul. 29, 1997 |
| 5638025 |
Amplified output stage containing N-channel output transistors and capacitive coupling stage |
Jun. 10, 1997 |
| 5631608 |
Driver for N-channel VFET output stage of power amplifier |
May. 20, 1997 |
| 5606281 |
Power amplifier stage of the voltage follower type |
Feb. 25, 1997 |
| 5537080 |
Gain stability arrangement for HV MOSFET power amplifier |
Jul. 16, 1996 |
| 5519247 |
Detector circuit with a semiconductor diode operating as a detector and with an amplifier circuit integrated with the diode |
May. 21, 1996 |
| 5519357 |
Biasing arrangement for a quasi-complementary output stage |
May. 21, 1996 |
| 5498997 |
Transformerless audio amplifier |
Mar. 12, 1996 |
| 5491449 |
Dual-sided push-pull amplifier |
Feb. 13, 1996 |
| 5477188 |
Linear RF power amplifier |
Dec. 19, 1995 |
| 5420537 |
High power solid state R.F. amplifier |
May. 30, 1995 |
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