When a transistor is saturated further increases in base current produce further increases in collector current?

When a transistor is saturated further increases in base current produce further increases in collector current?

At the point of saturation, the relation is no longer valid. Therefore once a transistor is in saturation, a further increase in base current will not affect the collector current. Hence the correct option is . Chapter 4, Problem 16ST is solved.

Which of the following are true when the NPN transistor is saturated?

Which of the following is true for a npn transistor in the saturation region? Explanation: The commonly used npn transistors have a potential difference of around 0.5V between he collector and the base. Explanation: The value of Vcb is -0.5V for a pnp transistor and 0.5V for an npn transistor.

What are A and B parameters of a transistor What is the relation between the two?

There is a transistor given, whose two of the parameters are alpha and beta. A transistor ‘s alpha is the current gain defined as the ratio of change in collector current to change in emitter current in the common base configuration, while beta is the current gain in the \[{\text{CE}}\] configuration.

Why the base current is small?

Few electrons injected by the emitter into the base of an NPN transistor fall into holes. Most of the emitter current of electrons diffuses through the thin base into the collector. Moreover, modulating the small base current produces a larger change in collector current.

How to saturate an NPN transistor in electrical mode?

There are two way of bringing transistor in saturation mode: 1 1)Use of Rc resistor: we can calculate max current (Ic) by assuming Vce = 0. Ic (max)= Vcc/Rc you can find… 2 2)By using rated saturation current (Datasheet): You can apply base current that tends to produce larger collector… More

How does base current increase and collector current decrease at?

Universität Paderborn. Hi, An increase in base current means more bias to the transistor which further means collector current will also increase but till the limiting value of the transistor parameters. However, if you try to push more current to the base, collector current would no more increase but the transistor may break down.

How does saturate depend on the type of transistor?

How much current will depend on the type of transistor. ‘saturation’ has to do with how many of the charge carriers in the base region can make it into the collector region. Some will come from the base terminal, but many more will come into the base region from the emitter region.

Why does a BJT transistor have to be saturated?

BJT transistor will be saturated the moment the Ic will not follow the linear relation of: I c = H F E ∗ I b. Thus all we have to do is to limit the Ic from reaching this value. Since I b is determined by the value of the resistor connected to the base and the driving voltage on its other end, it is easy to force I b to any value.