| |
 |
|
Class Information
Number: 330/270
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including push-pull amplifier > Having d.c. feedback bias control for stabilization
Description: Subject matter with a feedback circuit for direct currents, for the purpose of operating point stabilization.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7058360 |
Method and system for stabilizing the performance variation of a radio frequency device |
Jun. 6, 2006 |
| 6975848 |
Method and apparatus for DC offset removal in a radio frequency communication channel |
Dec. 13, 2005 |
| 6630866 |
High beta output stage for high speed operational amplifier |
Oct. 7, 2003 |
| 6600371 |
Low noise amplifier |
Jul. 29, 2003 |
| 6525602 |
Input stage for a buffer with negative feed-back |
Feb. 25, 2003 |
| 6127888 |
Power amplification device |
Oct. 3, 2000 |
| 6111464 |
Amplifier having bias circuit self-compensating for VGS process variation and IDS aging |
Aug. 29, 2000 |
| 5977829 |
Low distortion current feedback amplifier with dynamic biasing |
Nov. 2, 1999 |
| 5825247 |
Electric power amplifier and method for its operation |
Oct. 20, 1998 |
| 5825246 |
Low voltage class AB amplifier |
Oct. 20, 1998 |
| 5537081 |
No turn-on pop noise amplifier |
Jul. 16, 1996 |
| 5495214 |
Method and apparatus for controlling the operating point of an amplifier stage |
Feb. 27, 1996 |
| 5361041 |
Push-pull amplifier |
Nov. 1, 1994 |
| 5237261 |
Voltage step up regulator |
Aug. 17, 1993 |
| 5229721 |
Micropower amplifier/transducer driver with signal expansion |
Jul. 20, 1993 |
| 5202646 |
Output stage for amplifiers |
Apr. 13, 1993 |
| 5175749 |
Apparatus and method for DC offset correction in a receiver |
Dec. 29, 1992 |
| 5162752 |
Working point adjusting circuit for a single power amplifier having multiple output channels |
Nov. 10, 1992 |
| 5087890 |
Amplifier circuit |
Feb. 11, 1992 |
| 5070308 |
Working point adjusting circuit for a power amplifier |
Dec. 3, 1991 |
| 4922208 |
Output stage for an operational amplifier |
May. 1, 1990 |
| 4918400 |
Amplifier circuit |
Apr. 17, 1990 |
| 4888502 |
Variable bandwidth filter |
Dec. 19, 1989 |
| 4833423 |
Apparatus and method for a wide-band direct-coupled transistor amplifier |
May. 23, 1989 |
| 4647866 |
Audio amplifier output stage |
Mar. 3, 1987 |
| 4531100 |
Amplifier suitable for low supply voltage operation |
Jul. 23, 1985 |
| 4521740 |
Bias current compensated amplifier |
Jun. 4, 1985 |
| 4499431 |
Driver circuit configuration for the output stage of electronic power amplifiers |
Feb. 12, 1985 |
| 4491804 |
Bias circuit which is independent of output device voltage characteristics for biasing an amplifier in class AB operation |
Jan. 1, 1985 |
| 4442409 |
Push-pull non-complementary transistor amplifier |
Apr. 10, 1984 |
| 4370623 |
Push-pull amplifier circuit |
Jan. 25, 1983 |
| 4356452 |
Class A push-pull amplifier with bias controlling circuit |
Oct. 26, 1982 |
| 4336504 |
Push-pull output circuit |
Jun. 22, 1982 |
| 4283683 |
Audio bridge circuit |
Aug. 11, 1981 |
| 4237425 |
Automatic bias adjusting circuit |
Dec. 2, 1980 |
| 4220930 |
Quasi-linear amplifier with feedback-controlled idling currents |
Sep. 2, 1980 |
| 4095128 |
Push-pull switching circuit with minority carrier storage delay |
Jun. 13, 1978 |
| 4090139 |
Complementary symmetry FET mixer circuits |
May. 16, 1978 |
| 4028630 |
Push-pull amplifier arrangement |
Jun. 7, 1977 |
|
|
|
