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Class Information
Number: 330/140
Name: Amplifiers > With control of power supply or bias voltage > With control of input electrode or gain control electrode bias > Rectifier in bias control circuit
Description: Subject matter combined with a rectifier in "the bias voltage control means".
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7457598 |
Signal amplifier system for a broadcast receiver |
Nov. 25, 2008 |
| 7454179 |
Radio frequency power detector and decision circuit used with DC supply voltage controlled power amplifiers |
Nov. 18, 2008 |
| 7414486 |
Device and method for power calibration of an oscillator |
Aug. 19, 2008 |
| 7375584 |
Gain adjustment method, gain adjustment circuit, and optical disc device having same gain adjustment circuit |
May. 20, 2008 |
| 7358807 |
Protection of output stage transistor of an RF power amplifier |
Apr. 15, 2008 |
| 7345538 |
Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
Mar. 18, 2008 |
| 7253681 |
Power amplifier with integrated sensors |
Aug. 7, 2007 |
| 7250818 |
RF power amplifier circuit and RF transmitter and terminal including it |
Jul. 31, 2007 |
| 7242246 |
Amplitude detecting method, AGC circuit gain controlling method, amplitude detecting apparatus and AGC amplifier circuit |
Jul. 10, 2007 |
| 7183846 |
Device for detecting the power of a signal and integrated circuit with amplifier and related power detection device |
Feb. 27, 2007 |
| 7171171 |
GaAs RF signal detection circuit with operational amplifier |
Jan. 30, 2007 |
| 7164315 |
Power detector for mismatched load |
Jan. 16, 2007 |
| 7061316 |
High frequency power detector with dBm-linear characteristic and method of regulating the power of an electrical HF-oscillation |
Jun. 13, 2006 |
| 7046092 |
Amplifier circuit having signal detection function |
May. 16, 2006 |
| 7042285 |
RF power amplifier with load insensitive indirect forward power detector |
May. 9, 2006 |
| 7038543 |
Collective automatic gain control |
May. 2, 2006 |
| 7030692 |
Circuit and method for controlling gain in an amplifier |
Apr. 18, 2006 |
| 7030689 |
Isolated DC-to-DC converter |
Apr. 18, 2006 |
| 7010284 |
Wireless communications device including power detector circuit coupled to sample signal at interior node of amplifier |
Mar. 7, 2006 |
| 6989712 |
Accurate power detection for a multi-stage amplifier |
Jan. 24, 2006 |
| 6982594 |
System for developing a secondary control signal in a power amplifier control loop |
Jan. 3, 2006 |
| 6954104 |
Method and system for monitoring a deliverable radio frequency power of an amplifier operable on a monolithic microwave integrated circuit |
Oct. 11, 2005 |
| 6952132 |
Method and apparatus for automatic gain control |
Oct. 4, 2005 |
| 6924697 |
Semiconductor device and method thereof |
Aug. 2, 2005 |
| 6924698 |
Power detector for mismatched load |
Aug. 2, 2005 |
| 6819180 |
Radio frequency power amplifier adaptive bias control circuit |
Nov. 16, 2004 |
| 6801086 |
Adaptive digital pre-distortion using amplifier model that incorporates frequency-dependent non-linearities |
Oct. 5, 2004 |
| 6798287 |
Radio frequency power amplifier module integrated with a power control hoop |
Sep. 28, 2004 |
| 6791406 |
Power servo-loop, an RF signal amplifier circuit, and an RF signal transmitter fitted with such a circuit |
Sep. 14, 2004 |
| 6727759 |
Collective automatic gain control |
Apr. 27, 2004 |
| 6714071 |
Gate modulation for high power amplifiers |
Mar. 30, 2004 |
| 6678506 |
Extended range power detector |
Jan. 13, 2004 |
| 6670849 |
System for closed loop power control using a linear or a non-linear power amplifier |
Dec. 30, 2003 |
| 6650181 |
High-frequency amplifier |
Nov. 18, 2003 |
| 6639466 |
Amplifier bias adjustment circuit to maintain high-output third-order intermodulation distortion performance |
Oct. 28, 2003 |
| 6628165 |
Power controllers for amplitude modulation |
Sep. 30, 2003 |
| 6600374 |
Collective automatic gain control |
Jul. 29, 2003 |
| 6590619 |
Broadcast sound signal processing circuit |
Jul. 8, 2003 |
| 6577196 |
Method and circuit for automatic gain control of a signal amplifier |
Jun. 10, 2003 |
| 6577191 |
Automatic gain control circuit for analog signals |
Jun. 10, 2003 |
| 6472938 |
Automatic level controlling circuit |
Oct. 29, 2002 |
| 6469577 |
Automatic level controlling circuit |
Oct. 22, 2002 |
| 6448855 |
Accurate power detection circuit for use in a power amplifier |
Sep. 10, 2002 |
| 6426675 |
Method and arrangement for controlling the power of a transmission amplifier |
Jul. 30, 2002 |
| 6424212 |
Power amplifiers |
Jul. 23, 2002 |
| 6417729 |
Linear power control loop |
Jul. 9, 2002 |
| 6404284 |
Amplifier bias adjustment circuit to maintain high-output third-order intermodulation distortion performance |
Jun. 11, 2002 |
| 6388526 |
Methods and apparatus for high performance reception of radio frequency communication signals |
May. 14, 2002 |
| 6369648 |
Linear traveling wave tube amplifier utilizing input drive limiter for optimization |
Apr. 9, 2002 |
| 6369635 |
Temperature-compensated diode rectifier circuit for an HF level controller |
Apr. 9, 2002 |
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