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Is transformer an amplifier?

No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.


May power amplifier a voltage amplifier?

A power amplifier may also boost voltage; in audio equipment, power amplifiers often have a dial on the front that is used to control the input voltage gain. A simple power amplifier is composed of a single transistor; this type of configuration cannot provide voltage amplification as well. A voltage amplifier stage is needed. So the above example of an audio power amplifier is actually a voltage amplifier stage, followed by one or more power amplifier stages.


What are the least efficient of class of amplifier?

class b amplifiers as for class b amplifier the 'Q' point is near to cut of region.


What is A or C biasing?

The three standard forms of analog amplifier biasing are:class A - the amplifier is biased in the center of its linear operating range, this is the most linear but least efficient type of amplifier (because the transistors or tubes are always conducting, even when there is no signal to ampliify).class B - the amplifier is biased at the cutoff point, this is an efficient amplifier but is only linear if operated as a push-pull amplifier (because the transistors or tubes are in cutoff and not conducting when there is no signal and through one half of every cycle, a class B push-pull amplifier has two sections that operate on alternate halves of the cycle).class C - the amplifier is biased in hard cutoff so that only the peaks of the input signal are amplified, this is the most efficient amplifier (because the transistors or tubes may be in cutoff and not conducting for more the 85% of the time) but it is not capable of linear amplification. An amplifier biased as class C is only suitable for use in RF transmitter power stages, where a resonant LC tank circuit will be excited into oscillation by the output of the amplifier and complete the missing parts of the cycle.There are other forms of biasing (e.g. class AB) analog amplifiers that get some of the advantages of two of the standard forms. There are also forms of amplifiers having other nonstandard classes (e.g. class D) that are not analog amplifiers, but instead operate by amplifying pulses.


Why does an operational amplifier need a power supply?

It doesn't. You can make a differential amplifier with a single power supply.

Related Questions

Which amplifier has more efficiency than class b amplifier?

Class C amplifier.. A class D amplifier is more efficient than class B, and is more efficient than class C as well.


Can a power amplifier amplifies the power?

Question: Can a power amplifier amplify the power? An amplifier can amplify the voltage or the current. Power can be converted to heat.


How does power amplifier differ from a conventional voltage amplifier?

A voltage amplifier does not have to supply significant current bur a power amplifier does.


Is transformer an amplifier?

No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.


How can I get amps for my guitar amplifier?

You can get amps for your guitar amplifier by purchasing and connecting a separate amplifier unit, also known as a power amplifier, to your existing guitar amplifier. This will allow you to increase the overall power and volume output of your guitar amplifier.


Yes this amplifier works with a variety of subwoofers with various ohm loads. The amplifier will product the same power at 1.5 - 4 ohms making this a great choice for most subwoofers. ?

Yes this amplifier works with a variety of subwoofers with various ohm loads. The amplifier will product the same power at 1.5 - 4 ohms making this a great choice for most subwoofers.


May power amplifier a voltage amplifier?

A power amplifier may also boost voltage; in audio equipment, power amplifiers often have a dial on the front that is used to control the input voltage gain. A simple power amplifier is composed of a single transistor; this type of configuration cannot provide voltage amplification as well. A voltage amplifier stage is needed. So the above example of an audio power amplifier is actually a voltage amplifier stage, followed by one or more power amplifier stages.


What does an amplifier do for a subwoofer?

An amplifier will power your subwoofer so they can work.


What is the most efficient renewable resource?

solar power


What are the least efficient of class of amplifier?

class b amplifiers as for class b amplifier the 'Q' point is near to cut of region.


Do you need REM cable to power up amp?

Yes, you need a cable to connect the power supply to the amplifier, but the specific type of cable required depends on the model and power requirements of the amplifier. In most cases, a standard power cord with the appropriate voltage and current rating will suffice. It's always recommended to refer to the amplifier's user manual for the correct power supply requirements.


Does the power amplifier amplifies the power?

the final stage of a power amp is a current amplifier in a bipolar design and a voltage amp in a FET design.