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power amplifiers are the amplifier which raise the power levels of the signal.the power amplifier may also defined as a device which converts dc power to ac power and whose action is controlled by the ac input signal.
Power amplifiers are also known as "LARGE SIGNAL AMPLIFIER".the term large signal arises because they use large part of load line for their operation,but the small signal amplifiers are use only 10% load line for their operation.
What else can I help you with?
What term describes a smoothly varying signal produced by continuously changing the voltage or current in a curcuit?
Analog Signal. If I helped you out make sure to check out my Youtube. GomezManor
What is digital and analog?
we often confuse our-self with continuous time and analog signals. An analog signal is a signal which can take any amplitude in continuous range that is signal amplitude can take infinite values on the other hand a digital signal is one whose amplitude can take only finite numbers of values THE TERM CONTINUOUS SIGNAL AND DISCRETE SIGNAL CLASSIFY THE SIGNALS ALONG THE TIME (i.e. horizontal axis) where as THE TERM ANALOG AND DIGITAL SIGNAL CLASSIFY THE SIGNAL ALONG THE AMPLITUDE (i.e vertical axis)
What is over-modulating condition in term of amplitude modulation?
When your audio modulating signal is larger than your RF carrier amplitude the peak of the modulated carrier will become flat and a distorted audio signal with flattened peaks will be send out from the detector on the receiver side
What is advantage and disadvantage of impedance coupling?
The term impedance coupling can be used in two ways. 1) Example, coupling a signal from the output of one stage of an amplifier, to the input of the next stage. For low power as under about 0.1 watt, RC coupling is cheap and adequate as little power is dissipated in the collector resistor of a bipolar amplifier. However at higher power levels impedance coupling is more efficient, but also more expensive. An inductor simply replaces the resistor used for RC coupling. Unlike a resistor the inductors impedance is frequency dependent. This varies the level of coupling voltage available over the amps bandwidth, and needs to be accounted for at the design stage. An advantage is that by the addition of a parallel capacitor, an LC circuit can be formed to produce the basis for a band pass amplifier. Further by providing a tapped inductor; coupling, tuning and impedance matching functions can be obtained. Transformer coupling is a form of impedance coupling and can provide galvanic isolation as well as matching. 2) Unbalanced circuits, that is those having a 'high' or 'signal' lines and a common ground,chassis or earth; have the disadvantage that undesired signal coupling can occur when the higher current signals produce small voltage drops along the common ground. To minimize these undesired voltage variations grounds on PCBs are given wide low resistance tracks. Also by not mixing analog and digital signal grounds, the adverse effects of coupling are reduced. Furthermore, at higher frequencies a narrow length of track also has inductance, and capacitance to nearby conductors. There components provide the possibility of additional undesired impedence coupling. Balanced circuits which do not have one line of any signal grounded overcome the disadvantages of the simpler unbalanced circuits.
What is a reverberating circuit?
a closed circuit, in which the signal continually travels around a circular path over and over until one of the components (usually neurons) stops functioning and the signal is not transmitted to the next component; proposed by Hebb as the mechanism for short-term memory
What is meant by the term small signal amplifier?
Small signal amplifiers are generally referred to as "Voltage" amplifiers as they convert a small input voltage into a much larger output voltage.
What is meant by term signal degradation?
degration means to degrade something.
What did the term by in large mean in nautical terms?
The proper term is, "By and Large"In sailing days, it meant, "Sailing By the wind, and going Large", which meant you had the wind aft, or generally behind you, and your sails were full, or large.In effect, it means you had more options of courses to steer.
What is the origin of the term at large?
The term "at large" comes from Middle English and Old French, where "larges" meant "at liberty." It originally referred to someone who was not in custody or confinement and was free to move around.
What is meant by the term bigtit?
The term bigtit refers to the breasts that are found on females. The term refers to breasts that are of a large size and is used to distinguish them from average sized ones.
What is meant by the term cathetarisation?
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What is meant by the term resistance?
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What is meant by the term dementia?
Explain what is meant by the term 'dementia.'
What is meant by identation?
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What is meant by the term organization culture?
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What is meant by the term 'city'?
A city is a very large aggregation of houses and other buildings bounded by political limits in which a very large number of people live, work, and play.
What is meant by compaction?
What is meant by the term 'compaction'
