Results 331 to 340 of about 878,105 (387)
Some of the next articles are maybe not open access.
1976
Publisher Summary This chapter highlights the design considerations of amplifiers. The general approach to amplifier design is first to deal with the output stage. In a power amplifier, the object is to obtain the maximum amount of power, while limiting distortion to a predetermined level.
J.E. FISHER, H.B. GATLAND
openaire +2 more sources
Publisher Summary This chapter highlights the design considerations of amplifiers. The general approach to amplifier design is first to deal with the output stage. In a power amplifier, the object is to obtain the maximum amount of power, while limiting distortion to a predetermined level.
J.E. FISHER, H.B. GATLAND
openaire +2 more sources
Digital predistortion of wideband signals based on power amplifier model with memory
, 2001Memory effects in the power amplifier limit the performance of digital predistortion for wideband signals. Novel algorithms that take into account such effects are proposed.
Jungsang Kim, K. Konstantinou
semanticscholar +1 more source
Amplifying on the PCR Amplifier
2010Kary Mullis is not a theorist, but is a chemist who won the 1993 Nobel Prize for inventing the PCR method—which is an amplifier for DNA. He is also an alumnus of Georgia Tech, where I am these days. Mullis is famous, perhaps our most famous graduate, but he does have a quirky personality. Perhaps to create a brilliant idea like PCR took such a thinker.
openaire +2 more sources
Amplified Spontaneous Emission in Slab Amplifiers
IEEE Journal of Quantum Electronics, 2006Amplified spontaneous emission (ASE) occurs in media with large gain, and affects both the magnitude and the spatial distribution of the inversion. In this work we theoretically study the effect of ASE in three-dimensional, rectangular slab amplifiers, using Monte Carlo type computer simulations.
Shaul Pearl +3 more
openaire +2 more sources
A wideband, low-noise superconducting amplifier with high dynamic range
Nature Physics, 2012An ideal amplifier has very low noise, operates over a broad frequency range, and has large dynamic range. Unfortunately, it is difficult to obtain all of these characteristics simultaneously.
Byeong Ho Eom +3 more
semanticscholar +1 more source
Distributed Amplifier with Narrowband Amplifier Efficiency
2007 IEEE/MTT-S International Microwave Symposium, 2007A fully integrated tapered output line distributed cascode SiGe HBT amplifier is presented which presents an identical load to each transistor. A nodal analysis of currents in the output transmission line gives insight into the often assumed efficiency/bandwidth trade-off of a distributed amplifier.
B. Stengel +2 more
openaire +2 more sources
Science, 2019
Greater Southern Ocean stratification may have lowered the atmospheric CO 2 concentration and prolonged ice ages
openaire +3 more sources
Greater Southern Ocean stratification may have lowered the atmospheric CO 2 concentration and prolonged ice ages
openaire +3 more sources
1983
The last two chapters showed how transistors—bipolar and FET—work as amplifying devices, using a small current or voltage to control a much larger current. The application to a machine like a record-player, for example, is an obvious one, for the small electric signal produced by the player’s pick-up cartridge must be amplified to a sufficiently large ...
openaire +2 more sources
The last two chapters showed how transistors—bipolar and FET—work as amplifying devices, using a small current or voltage to control a much larger current. The application to a machine like a record-player, for example, is an obvious one, for the small electric signal produced by the player’s pick-up cartridge must be amplified to a sufficiently large ...
openaire +2 more sources
1.1 kW average output power from a thin-disk multipass amplifier for ultrashort laser pulses.
Optics Letters, 2013We report on a thin-disk multipass amplifier for ultrashort laser pulses delivering an average output power of 1105 W. The amplifier was seeded by a Trumpf TruMicro5050 laser with a power of 80 W at a wavelength of 1030 nm, pulse duration of 6.5 ps, and ...
J. Negel +6 more
semanticscholar +1 more source
1998
Publisher Summary The purpose of an operational amplifier is to perform a mathematical operation, such as addition, subtraction, multiplication or division. An operational amplifier (or op amp) can be built from discrete components, but nowadays, comes in the form of an integrated circuit. Many types of op amp exist with various specifications to suit
openaire +3 more sources
Publisher Summary The purpose of an operational amplifier is to perform a mathematical operation, such as addition, subtraction, multiplication or division. An operational amplifier (or op amp) can be built from discrete components, but nowadays, comes in the form of an integrated circuit. Many types of op amp exist with various specifications to suit
openaire +3 more sources