Electronics Engineering

What is a load line of transistor?


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2009-01-20 06:10:32
2009-01-20 06:10:32

what is load line of transistor what is load line of transistor

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It depends on the total load of the transistor as to what the shape of the slope is for the DC load line. A transistor gains voltage as base current is allowed to flow.

it is called as quiscient point. it is used to fix the transistor in the required region. it is plotted in the dc load line of transfer characteristics of a transistor. if the q point is in the middle of the load line the transistor amplifies the input signal since it is in active region and if the q point is in the bottom of the load line the transistor becomes off and it is said to be in cut-off region and if the q point is placed at the top of the load line the transistor is said to be in saturation region and more current flows through it.

A load line is used in graphic analysis of circuits, having both linear and non-linear parts, representing the constraint the other parts of the circuit put on the non-linear transistor. It represents the response of the linear circuit connected to the transistor. The DC load line describes the DC operation of a transistor graphically.

It is the operating point on the dc load line of a transistor. Its a fixed point free from transistor parameters.

A: A transistor has voltage gain as base current is allow to flow. If the load is constant then a DC mirror azimuth path can be plotted as a function of base current and collector current and that is the load line

to achieve quiecent operating point

stop using the internet a find a dictonary

The dc load resistance is Rc but the AC Load resistance is (RcRl). If a load line is drawn the slope of which is -1(Rc Rl) . Then it is called an AC load line and it is to be used when the transistor is operating as an amplifier.

It depends on the type of the transistor. For a BJT, the transistor must be biased at the center of the linear region, you can know the center by plotting the load line. Be careful for the DC and the AC load lines. For a EMOSFET transistor, it must be biased in the saturation region.

It lies in middle of the DC load line of that Amplifier.

A: Transistor to be effective as an linear amplifier it must be operated in its linear load range. The biasing scheme is to insure that the transistor is put in its linear/load range

well, this is very simple to understand ,the DC load line of a circuit is nothing but the Kirchoff's voltage law on the out put circuit of the transistor-amplifier. As the KVL is linear equation involving voltage drops the equation of load line is a straight linelet us assume that the transistor is in CE configuration.VCC-VCE-ICRC=0vICRC=VCC-VCE of the form by=aX+c which is in the form of a straight line with positive intercepts on X(VCC) and Y(VCC / RC) axis and a negative slopewhere,x= VCE/RCy= ICm(slope)= -VCC/RC

The difference between a dc load line and an ac load line is the source of the electricity. A dc load line is coming from a battery and an ac load line is through a direct electrical current.

The name is your clue: a transistor and a resistor (the load) are put in series. The output signal is taken from the load resistor. A small input signal (to the third lead of the transistor) will cause the transistor to change resistance ... thus you can get a large output from a small input Amplification.

DC load line- A straight line joining saturation & cut off point.

we should be take two point from the the graph between collector current and emitter-collector voltage.. along the horizontal line collector current is zero and emitter-collector voltage become Vcc,and along the vertical line emitter-collector voltage is zero and collector current become Vcc/RL then by this line that drow between this two point is called load line that in this line the transistor allowed to operate....

A load line is used in graphical analysis of nonlinear electronic circuits, representing the constraint other parts of the circuit place on a non-linear device, like a diode or transistor. It is usually drawn on a graph of the current vs the voltage in the nonlinear device, called the device's characteristic curve. A load line, usually a straight line, represents the response of a linear circuit connected to the nonlinear device in question. The operating point(s) of the circuit are the points where the characteristic curve and the load line intersect; at these points the current and voltage parameters of both parts of the circuit match

line is your feed load is what is being powered

Zener diodes attempt to keep terminal voltage constant. If the load is fairly small, a single zener diode can be used for this purpose. If the load is large enough that the zener cannot hold the voltage within desired margins, I suggest using the zener to control the base of a power transistor; the emitter or collector (depending on transistor type) will be used as the output to the load.

Use the astable to switch a power transistor and connect the buzzer as the transistor load.

A transistor begin to conduct if the Vbe is ~.6v following an exponential curve therefore non very linear. by biasing it is possible to achieve a linear portion of the load lines

the fixed amount of current and voltages are developed across the transistor is called biasing. thus the fixed voltages and current developed are called Q-point

no load voltage - full load voltage by full load voltage

No difference a load is a load however AC/DC defines the type of a load that is.

when the dc supply given, dc load line lies in the Ic and Vcc. when the AC supply given, AC load line lies in the Ic and Vcc.

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