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What is the differences between fixed biased configuration and voltage divider configuration of a common BJT circuit?
In the fixed.bias biasing several key parameters of the amplifier depend on the Beta of the transistor. This parameter has a wide variation (often 5 to 1 or more) for a particular transistor type. Thus, if you need to make a production run of a number of identical amplifiers, this variation in the Beta is unacceptable.
In the voltage-divider stabilized method the performance of the amplifier is independent of Beta (or almost). Thus, this design is suitable to be used in the production of a large number of identical devices.
In terms of biasing, a voltage divider circuit helps offset the effect of changes in the beta value of the transistor. So it's said to be more 'stable' because heating of the transistor, or swapping transistors entirely (both of which affect beta) will not greatly affect the output of the circuit.
As far as the actual output is concerned, I believe both circuits have similar input/output impedance ranges and similar voltage gains. But the fixed biased circuit typically has more current gain.
What else can I help you with?
What is the voltage divider theorem?
it is aa linear circuit that produces the output voltage from the fraction of its input. It is also known as potential divider.
What are the application of voltage divider biasing?
To get reasonable gain without losing stability of circuit. ANSWER: Is to reduce the input to a lesser value or to match signals impedance
How is a rheostat use as a potential divider?
_____________ J| -_____/\/\/\/\_________+ | | | - + | |___i|i|___| E Well this is the circuit diagram , where r is the sliding jockey of the rheostat and a cell (E) is connected in parallel with the rheostat. By adjusting the jockey resistance of the rheostat can be altered which in turn would regulate the potential offered by the cell E to the main circuit. And thus a rheostat can be used as a potential divider.
WHAT IS IC 4017?
4017 IC is a counter, divider integrated circuit. It is a decade counter that has 10 different decode outputs and is commonly called a CMOS.
What would happen to the power dissipated in the voltage divider?
The power dissipated in a voltage divider circuit is given by the formula P = V^2/R, where V is the voltage across the resistor and R is the resistance of the resistor. If the resistance in the voltage divider circuit is increased, the power dissipated in the circuit will decrease. This is because as resistance increases, the current flowing through the circuit decreases, leading to less power being dissipated as heat in the resistors.
What is a voltage divider circuit?
The voltage divider circuit is a network of two or more components in series, often resistors, between a potential difference. The voltage between the components will be somewhere between the potential difference across the whole network and so divides the total voltage into one or more intermediate voltages.
How does a voltage divider work?
The essential circuit of a voltage divider, also called a potential divider, is:
What is the difference between a voltage divider circuit and voltage regulator I was told if the circuit consumes low current then the voltage divider can be used what does that mean?
A: that is true for less current a divider is OK it has to do with the series resistance and loading if the loading is forever fixed and the source is also fixed at a value then a divider can be used no matter what the current is.
What is the operation of potential divider bias?
Thevenization of the divider circuit will help you see how it operates.
What is the difference between voltage divider and potential divider?
its the same
What is the voltage divider theorem?
it is aa linear circuit that produces the output voltage from the fraction of its input. It is also known as potential divider.
What do you call a wall between universes?
a divider
What kind of circuit lowers voltage?
you can use a voltage divider or a step-down transformer to lower voltage.
What is the purpose of a floor divider between rooms?
A floor divider between rooms serves to separate different areas, provide a transition between spaces, and define boundaries within a building.
If you get 2 male beta fishes and put a divider between them but they are not violent can you remove the divider?
it means u have benn rapped
What are the application of voltage divider biasing?
To get reasonable gain without losing stability of circuit. ANSWER: Is to reduce the input to a lesser value or to match signals impedance
What is voltage divider circuit?
The two resistor voltage divider is used often to supply a voltage different from that of an available battery or power supply. In application the output voltage depends upon the resistance of the load it drives.
