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Class 330/256 - Having temperature compensation means


Subclass of Class 330 - Amplifiers
Definition: Subject matter wherein temperature compensating means are
No. of applications: 13
Last issue date: 05/07/2009


Application No.Application TitleIssue Date
20090115520Temperature compensation of collector-voltage control RF amplifiers
A temperature compensation system for compensating a collector-voltage controlled RF amplifier. To overcome variation that occurs with temperature which can result in signal degradation of the adjacent channel spectrum, a temperature compensated current is utilized to c...
05/07/2009
20090051439TRANSCONDUCTANCE SIGNAL CAPACITY FORMAT
Operational transconductance amplifiers have a natural signal capacity format in which signal performance can be expressed in terms of fixed percentages. Input signal can be applied to Operational transconductance amplifiers in this natural signal capacity format in ord...
02/26/2009
20080315949VARIABLE GAIN AMPLIFIER INSENSITIVE TO PROCESS VOLTAGE AND TEMPERATURE VARIATIONS
An improved VGA design offering a purely ratiometric mechanism for controlling gain by current-steering. A control loop delivers a reference voltage to a control amplifier that steers current and match the common mode output voltage (CMOV) with said predefined reference...
12/25/2008
20080061877Common mode regulation for thermal tail compensation
A waveform processing system, and associated methods and apparatus, may include a common mode feedback compensation circuit to adjust a voltage supplied to a differential circuit so as to substantially reduce or eliminate signal distortion associated with thermal tails....
03/13/2008
20080018402Systems and arrangements for sensing current with a low loss sense element
In accordance with the present disclosure current sensing methods, apparatuses and arrangements are disclosed. The arrangement can include a sense element to convey a current from a source to a load and a compensation element can be located proximate to the sense elemen...
01/24/2008
20070194849Method for nullifying temperature dependence and circuit therefor
A circuit and a method for nullifying temperature dependence of a circuit characteristic. The circuit includes a plurality of transistors configured such that they generate a gate voltage that includes a threshold voltage as a component. The gate voltage is applied to a...
08/23/2007
20060290428Variable gain amplifier with temperature compensation and gain linearity enhancement
A variable gain amplifier contains a plurality of differential transistor pairs. A temperature dependent current is generated in the current path of each differential transistor pair. A generated gain control current is converted to a temperature dependent gain control ...
12/28/2006
20060255858Gain control circuit capable of reducing change in gain due to variation of ambient temperature
A gain control circuit capable of keeping a constant gain without being affected by ambient temperature includes a variable resistor element connected to a power supply terminal, a control unit for controlling the resistance value of the variable resistor element on the...
11/16/2006
20060152283Circuit and method for avoiding circuit performance degradation caused by time-variable thermal imbalances
A signal processing circuit includes a circuit stage for operating on signals in a signal path of an input signal, including main circuitry for operating on relatively small-value signals and alternative circuitry for amplifying/processing signals during a condition whi...
07/13/2006
20060152282Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals
An amplifier includes a differential amplifier (10) having an input stage (20) for amplifying a differential input signal (Vin), and an output stage (6) coupled to the input stage (20) for producing and output signal (Vout). The input stage (...
07/13/2006
20060033572Method and circuit for trimming a current source in a package
A method and circuit for trimming a current source packaged with a device can facilitate trimming of the current source without the need for additional pins or dual function pins, resulting in improved accuracy and/or simplified trimming techniques. An exemplary package...
02/16/2006
20050212598Circuit structure capable of adjusting gradient of output to temperature variation
A circuit structure capable of adjusting gradient of output to temperature variation includes at least a sensing unit for detecting ambient temperature variation and generating a sensing signal, an amplifying unit connected to the sensing unit for increasing a level of ...
09/29/2005
20050179493Temperature controlled, log-linear gain control circuit for amplifiers
A gain control circuit and a variable gain amplifier using the same. In the variable gain amplifier, gain control circuit generates a gain control voltage according to a control voltage, and a gain variable amplification unit is coupled to the gain control circuit and a...
08/18/2005
 
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