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One method is by adding negative feedback from the output to the input stages.
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∙ 15y ago
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What is negative feedback in an amplifier?
feedback that reduces gain to help stabilize amplifier operation. gain is easy and cheap to get, stability isn't. its a tradeoff. so amplifier is deliberately designed with much more gain than needed and negative feedback sacrifices some of that gain to stabilize it.
What is the effect of emitter resistance in common emitter amplifier?
The gain of a common-emitter amplifier is collector resistor divided by emitter resistor, or hFe, whichever is less. Since hFe depends on temperature, designing the amplifier to be dependent on resistance ratio makes it more stable. As such, the emitter resistance serves to stabilize the amplifier.
What is operating point instability and need of stabilization?
A: And system or amplifier may have instability as some point due to external or internal function therefore intervention is needed to stabilize the system at that particular point of operation.
Why need to stabilize amplifier?
the function of amplifier is to keep amplifying .............that is to keep multiplying the input with input to obtain larger output. hence , if this process is carried on indefinately then the system at a certain stage will not be able to retain its stability coz high of high power or output .thus it is necessary to stabalize by it by using. limter ' or threshold vaue
Who is more gain amplifier cascaded amplifier or darlington amplifier?
Darlington amplifier has more gain when compared to cascade amplifier .
Why negative feedback amplifier is preferred to positive feedback amplifier?
The negative feedback tends to stabilize the circuit; positive feedback would make it more unstable. For example, the "beta" of a transistor OF THE SAME SERIES - this is basically the amplification factor - may vary between 100 and 1000. With negative feedback, the circuit is hardly affected by these changes in beta - at the cost of a reduced amplification.
HOW CAN WE STABILIZE THE ECONOMY IN EURPPE?
How can we stabilize economy in europe
what are the types of biological amplifier?
1.differential amplifier 2.operational amplifier 3.instrumentation amplifier 4.chopper amplifier 5.isolation amplier
Which is the opposite of fluctuate vary stabilize adjustor vacillate?
stabilize
What is a sentence with stabilize?
I must stabilize this aircraft before it disintegrates.
What is current series feedback amplifier and its uses?
current series feedback amplifier=series parallel feedback amplifier or voltage to current amplifier,or TRANS CONDUCTANCE AMPLIFIER.
What is selective amplifier?
Selective amplifier is an RF amplifier which selects particular frequency and amplifier so it can operate at fixed frequency.
