Results 341 to 350 of about 878,105 (387)
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1995
Publisher Summary This chapter discusses the general concepts of gain spectrum, amplifier bandwidth, and operating characteristics of erbium-doped fiber amplifiers (EDFAs). The nonlinear and dispersive effects are included using the Maxwell-Bloch formalism.
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Publisher Summary This chapter discusses the general concepts of gain spectrum, amplifier bandwidth, and operating characteristics of erbium-doped fiber amplifiers (EDFAs). The nonlinear and dispersive effects are included using the Maxwell-Bloch formalism.
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Instrumentation Amplifiers and Operational Floating Amplifiers
2011With the definition of universal active devices in Chap. 1 we have seen that the operational floating amplifier (OFA) is the most universal active device, even more universal than the operational voltage amplifier (OVA), abbreviated to OA or OpAmp, because of its most wide usage. The OpAmp provides us with accurate output voltage control. Additionally,
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Amplified spontaneous emission in a Ti:sapphire regenerative amplifier
Applied Optics, 2003Amplified spontaneous emission power and contrast ratio in a linear miltipass Ti:sapphire regenerative amplifier with a wavelength centered at 1054 nm are calculated and measured. It is shown that the passive losses of a seed pulse and the losses in coupling to the regenerative amplifier cavity mode degrade the intensity contrast ratio to 10(-6)-10(-7).
Anatoly Maksimchuk +2 more
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Idealized operation of the class E tuned power amplifier
, 1977The class E tuned power amplifier consists of a load network and a single transistor that is operated as a switch at the carrier frequency of the output signal.
F. Raab
semanticscholar +1 more source
2012
After a weak radio frequency (RF) signal has arrived at the antenna, it is channeled to the input terminals of the RF amplifier through a passive matching network. As we learned in Chap. 6, the matching network enables maximum power transfer of the receiving signal by equalizing the antenna impedance with the RF amplifier input impedance.
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After a weak radio frequency (RF) signal has arrived at the antenna, it is channeled to the input terminals of the RF amplifier through a passive matching network. As we learned in Chap. 6, the matching network enables maximum power transfer of the receiving signal by equalizing the antenna impedance with the RF amplifier input impedance.
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1998
Publisher Summary A power amplifier is often used at the output stage of an audio system to drive a loudspeaker. Typically, power outputs of several tens or even a hundred or more watts are generated. But power amplifiers may also be used in other applications which need high power output.
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Publisher Summary A power amplifier is often used at the output stage of an audio system to drive a loudspeaker. Typically, power outputs of several tens or even a hundred or more watts are generated. But power amplifiers may also be used in other applications which need high power output.
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Network propagation: a universal amplifier of genetic associations
Nature reviews genetics, 2017L. Cowen +3 more
semanticscholar +1 more source
1998
Publisher Summary The bipolar junction transistor is the device usually referred to as “a transistor.” The word “transistor” is short for “transfer resistor,” as it is when applied to FETs. The word “junction” refers to the fact that the action of the transistor depends on the pn junction, for the transistor contains two such junctions.
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Publisher Summary The bipolar junction transistor is the device usually referred to as “a transistor.” The word “transistor” is short for “transfer resistor,” as it is when applied to FETs. The word “junction” refers to the fact that the action of the transistor depends on the pn junction, for the transistor contains two such junctions.
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An ultraflexible organic differential amplifier for recording electrocardiograms
Nature Electronics, 2019Masahiro Sugiyama +8 more
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1998
Publisher Summary The purpose of an electronic amplifier is to make an electronic signal bigger without affecting it in any other way. Before considering exactly what is implied by this statement, the nature of a typical electronic signal must be understood.
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Publisher Summary The purpose of an electronic amplifier is to make an electronic signal bigger without affecting it in any other way. Before considering exactly what is implied by this statement, the nature of a typical electronic signal must be understood.
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