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Class Information
Number: 330/310
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including plural stages cascaded
Description: Subject matter including a plurality of stages of amplification, such that the input signal for each stage, except the first, is the output of the preceding stage.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459970 |
Method and apparatus for optimizing power dissipation in a low noise amplifier |
Dec. 2, 2008 |
| 7453320 |
Amplifier |
Nov. 18, 2008 |
| 7443236 |
CDMA power amplifier design for low and high power modes |
Oct. 28, 2008 |
| 7443245 |
High frequency power amplifier circuit and electronic component for high frequency power amplifier |
Oct. 28, 2008 |
| 7439805 |
Enhancement-depletion Darlington device |
Oct. 21, 2008 |
| 7439809 |
Radio frequency power amplifier |
Oct. 21, 2008 |
| 7436257 |
High-efficiency mixed-mode power amplifier |
Oct. 14, 2008 |
| 7427898 |
Detecting amplifier out-of-range conditions |
Sep. 23, 2008 |
| 7420424 |
Power amplifier transmission line transformer |
Sep. 2, 2008 |
| 7408412 |
Power amplifier and wireless communication device |
Aug. 5, 2008 |
| 7391269 |
Amplifying circuit |
Jun. 24, 2008 |
| 7382197 |
Adaptive tuning circuit to maximize output signal amplitude for an amplifier |
Jun. 3, 2008 |
| 7378909 |
Radio-frequency power amplifier apparatus and method of adjusting output power thereof |
May. 27, 2008 |
| 7372335 |
Wideband circuits and methods |
May. 13, 2008 |
| 7365605 |
High voltage, high current, and high accuracy amplifier |
Apr. 29, 2008 |
| 7362172 |
Variable gain circuit |
Apr. 22, 2008 |
| 7362170 |
High gain, high efficiency power amplifier |
Apr. 22, 2008 |
| 7355471 |
Circuit for DC offset cancellation |
Apr. 8, 2008 |
| 7352245 |
Auto-range current mirror circuit |
Apr. 1, 2008 |
| 7352247 |
Triple cascode power amplifier of inner parallel configuration with dynamic gate bias technique |
Apr. 1, 2008 |
| 7352246 |
Noise-shaping amplifier with waveform lock |
Apr. 1, 2008 |
| 7348856 |
Semiconductor device |
Mar. 25, 2008 |
| 7345534 |
Efficient power amplification system |
Mar. 18, 2008 |
| 7345548 |
Radiofrequency amplifier device, in particular for cellular mobile telephone |
Mar. 18, 2008 |
| 7345540 |
Amplifier circuit having a compensating amplifier unit for improving loop gain and linearity |
Mar. 18, 2008 |
| 7298207 |
Automatic gain control for a multi-stage gain system |
Nov. 20, 2007 |
| 7295070 |
Flip around switched capacitor amplifier |
Nov. 13, 2007 |
| 7292099 |
Amplifier arrangement and method for operation of an amplifier arrangement |
Nov. 6, 2007 |
| 7292097 |
Amplifier and method for processing signals |
Nov. 6, 2007 |
| 7292105 |
Power control and modulation of switched-mode power amplifiers with one or more stages |
Nov. 6, 2007 |
| 7286807 |
Receiver with a cascade of resonant amplifiers in the RF input stage |
Oct. 23, 2007 |
| 7276969 |
Multi-amplifier circuit |
Oct. 2, 2007 |
| 7276976 |
Triple cascode power amplifier of inner parallel configuration with dynamic gate bias technique |
Oct. 2, 2007 |
| 7271662 |
High frequency power amplifier circuit and electric component for high frequency power amplifier |
Sep. 18, 2007 |
| 7265630 |
Millimeter-wave unilateral low-noise amplifier |
Sep. 4, 2007 |
| 7265618 |
RF power amplifier having high power-added efficiency |
Sep. 4, 2007 |
| 7259620 |
Wide dynamic range switching variable gain amplifier and control |
Aug. 21, 2007 |
| 7259632 |
Method for cascoding amplifiers by modulating isolated power supply reference points |
Aug. 21, 2007 |
| 7256654 |
Amplifying a signal using a current shared power amplifier |
Aug. 14, 2007 |
| 7253689 |
Low distortion amplifier |
Aug. 7, 2007 |
| 7250820 |
Power distribution and biasing in RF switch-mode power amplifiers |
Jul. 31, 2007 |
| 7248111 |
Multi-mode digital bias control for enhancing power amplifier efficiency |
Jul. 24, 2007 |
| 7245179 |
Auto gain controller |
Jul. 17, 2007 |
| 7227420 |
Transimpedance amplifier with a high gain/bandwidth product for conversion of a DAC output current |
Jun. 5, 2007 |
| 7227419 |
Power distribution and biasing in RF switch-mode power amplifiers |
Jun. 5, 2007 |
| 7221217 |
Self-bias and digitally tunable conduction angle circuits for a differential RF non-linear power amplifier employing low-voltage transistors |
May. 22, 2007 |
| 7221228 |
Radio frequency power amplifier module |
May. 22, 2007 |
| 7212069 |
Power control and modulation of switched-mode power amplifiers with one or more stages |
May. 1, 2007 |
| 7205840 |
Wideband CMOS gain stage |
Apr. 17, 2007 |
| 7202746 |
Multiple-stage operational amplifier and methods and systems utilizing the same |
Apr. 10, 2007 |
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