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Why transformer coupled amplifier is more efficient than RC coupled amplifier?
Wiki User
∙ 10y ago
an RC coupled amplifier is basically used for voltage amplification , where the circuit
currents are quite low. higher currents & voltages would mean more dissipation in the
load resistors , which is essentially very lossy . The coupling amplitude to the next
stage is ideally the same as the previous stage signal excursion.
However if a transformer is used for coupling , both large voltages & current can be
handled without incurring the dissipation of a resistive load. Moreover a coupling
gain of the transformer primary to secondary ratio is also a bonus. also because of
the possiblity of correct impedance matching on the primary & secondary side
maximum power coupling is obtained. hence transformer coupling is more efficient
in such applications.
in high frequency applications transformer coupling , along with tuned circuits as
applicable is the choice circuit.
Wiki User
∙ 10y ago
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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.
Loading effect in RC coupled amplifier?
Loading of Rc coupled amplifier occurs, if you doesnt use coupling capacitors...... If avoiding input coupling capacitor the amplifier will load the function generator.. For more details go to http://mycircuits9.blogspot.com
How you differentiate amplifier and transformer?
A big difference. A transformer converts power into more useful means of transportation or matching to the end results.Pincoming = IPVP = Poutgoing = ISVS.giving the ideal transformer equationVs/VP= Ns/NP=IP/Isthen as the outgoing voltage of the transformer increase, the outgoing current will decrease. An amplifier adds power. For example, voltage amplifier add voltage (amplify) independent the amplifier current.
What is the difference between planar transformer and AA normal transformer?
I am currently designing a planar transformer for a switch-mode power supply. From what I understand, planar transformer is better than a normal transformer due to its shape. It utilises flat E ferrite cores and winding tracks which saves space and is more compact for a power supply. It also has lower leakage inductance which makes it more efficient.
What is the purpose of isolation transformer?
An isolation transformer (or more commonly, amplifier) reduces noise in the system from the power source. This is especially necessary in medical applications where the signals that are being read are very tiny and even a small amount of noise can disrupt a signal and make it unreadable.
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.
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.
Advantage of a transformer over a transformer coupled circuit?
Sounds more like a "homework" or "test" question, rather than a real-world question, and vague, at that! Could you re-phrase your question in a better, more-precise context, or check it for typos? Right now, your question seems to ask "What's the advantage of using a transformer, instead of using a transformer-coupled circuit?"...which makes no sense, since a "transformer-coupled circuit" USES a transformer.
Loading effect in RC coupled amplifier?
Loading of Rc coupled amplifier occurs, if you doesnt use coupling capacitors...... If avoiding input coupling capacitor the amplifier will load the function generator.. For more details go to http://mycircuits9.blogspot.com
Which is more efficient 12v or 240v downlight?
If they are both using the same watt globes the 240v is slightly more efficient due to small losses in the transformer.
Who invented the opamp-741 IC?
Nobody invented the op-amp but manufactures decided that an amplifier can be more efficient as opposed to building the same amplifier out of discreet components
How you differentiate amplifier and transformer?
A big difference. A transformer converts power into more useful means of transportation or matching to the end results.Pincoming = IPVP = Poutgoing = ISVS.giving the ideal transformer equationVs/VP= Ns/NP=IP/Isthen as the outgoing voltage of the transformer increase, the outgoing current will decrease. An amplifier adds power. For example, voltage amplifier add voltage (amplify) independent the amplifier current.
What is a electric transformer?
A combination of inductors coupled together by high mutual inductances. Or more simply several coils wound together on the same armature.
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