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A differential amplifier will amplify the difference between 2 signals. This is useful in control systems, where one signal can represent what is actually happening (could be a position or speed, for example). The other signal can represent what is desired.
A differential amplifier could be used in a cruise control on a car. When you set the cruise control, a voltage level can represent the speed that the car was traveling when set. If the car starts going up a hill and slows down, the voltage difference would be amplified, and the output of the differential amplifier can be sent to an actuator, which moves a lever to increase the rate of fuel going to the engine. When you get back to the desired speed, the difference is zero, and the actuator stops moving. If your speed increases too much, then it would have a negative voltage, so the actuator would move the other way, decreasing the rate of fuel to the engine.
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Why does an operational amplifier need a power supply?
It doesn't. You can make a differential amplifier with a single power supply.
What are the scopes of differential amplifier?
your mom! She is the answer!
What amplifier circuit is typically used as the input stage for an operational amplifier?
Differential amplifier ANSWER: A differential amplifier is an op amp. If any amplification is required a preamplifier is used mainly to cut the white noise and improve the input impedance
Derive the output equation for differential amplifier and instrumentation amplifier?
Vo=(R2/R1)(V2-V1)
What are application of ic 741 opamp?
A 741 Op-amp has three distinct parts and applications. They are a differential amplifier, a voltage amplifier, and an output amplifier.
Why does an operational amplifier need a power supply?
It doesn't. You can make a differential amplifier with a single power supply.
How is a differential amplifier constructed?
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What are the scopes of differential amplifier?
your mom! She is the answer!
What amplifier circuit is typically used as the input stage for an operational amplifier?
Differential amplifier ANSWER: A differential amplifier is an op amp. If any amplification is required a preamplifier is used mainly to cut the white noise and improve the input impedance
what are the types of biological amplifier?
1.differential amplifier 2.operational amplifier 3.instrumentation amplifier 4.chopper amplifier 5.isolation amplier
The use of swamping resistor in differential amplifier?
the use of swamping resisters in amplifier is in order to protect the amplifier from high temperatures
Derive the output equation for differential amplifier and instrumentation amplifier?
Vo=(R2/R1)(V2-V1)
What are application of ic 741 opamp?
A 741 Op-amp has three distinct parts and applications. They are a differential amplifier, a voltage amplifier, and an output amplifier.
What is the inference of instrument amplifier?
The differential voltage is amplified using the instrumentation amplifier.This is the inference we know from instrumentation amplifier...
Do I need a 2-Channel Differential Converter for a Car Amplifier?
Yes, if you want the stereo to perform to it's best, you should purchase one of these.
What type of signal to amplify by using differential amplifier?
ac and dc
Why is differential amplifier preferred over single ended amplifier?
The input stage of an op amp is usually a differential amplifier; this is due to the qualities that are desirable in an op amp that match qualities in a differential amplifier: common noise rejection ratio; low input impedance, high output impedance, etc. The use of differential amplifiers in op-amps is to increase the input range and to eliminate common entries like noise.
