Patent application number | Description | Published |
20090140803 | AMPLIFIERS WITH COMPENSATION - An amplifier system includes a first amplifier stage having an input and an output. A second amplifier stage has an input and an output, the input of the second amplifier stage being connected to the output of the first amplifier stage. A transistor has a control terminal, a first terminal, and a second terminal, the first terminal of the transistor being coupled to the output of the first amplifier stage and the input of the second amplifier stage. A first capacitance has a first terminal and a second terminal, the first terminal of the first capacitance being connected to the input of the first amplifier stage, the second terminal of the first capacitance being connected to the second terminal of the transistor. A first current source to source current to amplifier system, the first current source being is connected to the output of the first amplifier stage. A second current source will sink current from the amplifier system. The second current source is connected to the second terminal of the first capacitance and the second terminal of the transistor. | 06-04-2009 |
20100219885 | Broadband low noise amplifier - Aspects provide for the broadband amplification of RF signals. Other aspects provide for the conversion of single ended input to differential output. Various aspects provide for tuning the response to a particular frequency band. Other aspects provide for various transconductance elements. In several aspects, broadband current to voltage converters and voltage to current converters are presented. Some implementations incorporate a buffer circuit, and various implementations incorporate feedback circuits. | 09-02-2010 |
20100219886 | Broadband low noise amplifier - Aspects provide for the broadband amplification of RF signals. Other aspects provide for the conversion of single ended input to differential output. Various aspects provide for tuning the response to a particular frequency band. Other aspects provide for various transconductance elements. In several aspects, broadband current to voltage converters and voltage to current converters are presented. Some implementations incorporate a buffer circuit, and various implementations incorporate feedback circuits. | 09-02-2010 |
20100277250 | Voltage controlled oscillator - A voltage controlled oscillator (VCO) includes a first and a second n-type transistor, a first and a second p-type transistor, a first and second capacitive element, a bridge connecting (1) the ground-facing connection of the first n-type transistor and power-facing connection of the first p-type transistor to (2) the ground-facing connection of the second n-type transistor and power-facing connection of the second p-type transistor, a first inductive element, a first capacitor bank, a second inductive element, and a second capacitor bank. | 11-04-2010 |
20110025418 | CURRENT TO VOLTAGE CONVERTER - A current to voltage converter which includes a common gate transconductance element having at least one input and one output. The current to voltage converter further includes a common source transconductance element having at least one input and one output, where the common source transconductance element is connected to the common gate transconductance element. The current to voltage converter further includes a feedback circuit including a resistor, where the feedback circuit connects any input having a polarity to any output having an opposite polarity. | 02-03-2011 |
20110221530 | CLASS AB AMPLIFIERS - A class AB amplifier includes a first inductor having a first terminal in communication with a voltage source terminal. A first transistor has a drain terminal in communication with a second terminal of the first inductor. A second transistor has a source terminal in communication with a source terminal of the first transistor. A second inductor has a first terminal in communication with a drain terminal of the second transistor and a second terminal in communication with a reference potential. The drain terminals of the first transistor and the second transistor are capacitively coupled together. | 09-15-2011 |
20130154743 | CLASS AB AMPLIFIERS - An amplifier includes a first switch and a second switch each having a first terminal and a second terminal. The first terminals of the first and second switches respectively communicate with a first tank circuit and a second tank circuit. The second terminal of the second switch communicates with the second terminal of the first switch. A first capacitance having a first terminal connected directly to (i) the second terminal of the first switch and (ii) the second terminal of the second switch. A second terminal of the first capacitance is connected directly to a first input voltage of the amplifier. A first load is connected across (i) the first terminal of the first switch and (ii) the first terminal of the second switch. The amplifier generates a first output across the first load. | 06-20-2013 |
20140253238 | CLASS AB AMPLIFIERS - An amplifier including first, second, third, and fourth switches, each having first and second terminals. The first terminal of each switch communicates with a respective load. The second terminal of the first switch communicates with the second terminal of the second switch. The second terminal of the third switch communicates with the second terminal of the fourth switch. A first terminal of a first capacitance communicates with the second terminals of the first and second switches. A first terminal of a second capacitance communicates with the second terminals of the third and fourth switches. A first inductance communicates with second terminals of the first and second capacitances. | 09-11-2014 |