When the transistor is in saturation the collector to emitter voltage is?

Transistor datasheets will define this voltage as CE saturation voltage VCE(sat) — a voltage from collector to emitter required for saturation. This value is usually around 0.05-0.2V. This value means that VC must be slightly greater than VE (but both still less than VB) to get the transistor in saturation mode.

Why VCE SAT is 0.2 V?

It is because both the junctions in the transistor are forward biased at saturation. Under this condition, for npn transistor the emitter to base voltage is ~+0.7V and than between the base to collector ~0.5V (base p, collector n).

What is the voltage across the collector to the emitter VCE?

The collector-emitter voltage is equal to zero for a idesl transistor when the transistor is on. In a real transistor this voltage is around 0.2 to 0.3 Volts. In order for an NPN transistor to be on, the base-emitter voltage is about 0.7 Volts and there is current flowing into the base (conventional current).

How much is VCE when a transistor is saturated?

“Saturation” in a transistor switch circuit is achieved when the voltage across the collector/ emitter (VCE(sat)) is less than or equal to . 1 to . 3 volts – depending on the type of transistor.

When a transistor is switched off VCE approximately equals?

Question: When a transistor switch is cut off, Vce is approximately equal to c. 0.2V d. 0.7V When a transistor switch is in saturation, VcE is approximately equal to c. 0.2V a.

What happens when VCE is 0?

When the transistor is either in saturation or cutoff modes, it dissipates little power. When in cutoff, there is no current flow between collector and emitter thus P = Vce ∗ Ic = 0. When in saturation, the current may be high, but Vce is very small, keeping the power dissipated by the transistor very low.

What is VCE voltage?

VCE is the voltage that falls across the collector-emitter junction of a bipolar junction transistor. VCE is a crucial voltage of a transistor circuit because it determines the transistor’s load line and q-point.

How do you find the voltage between emitter and collector?

Determine the voltage drop between the collector and emitter junctions (Vce) of the transistor using the formula Vce = Vcc – IcRc, where “Vce” is the collector emitter voltage; “Vcc” is the supply voltage; and “IcRc” is the voltage drop across the base resistor (Rb).

What is collector saturation current?

Saturation collector current refers to the collector current value beyond which the relationship between the base and collector current is no longer linear (i.e. independent of the DC current gain beta).