What happens when a transistor is saturated?

Saturation — The transistor acts like a short circuit. Current freely flows from collector to emitter. Cut-off — The transistor acts like an open circuit. No current flows from collector to emitter.

What is the voltage drop across a saturated transistor?

A general-purpose transistor will drop about . 1 to . 3 volts across the collector/emitter terminals (VCE(sat); see datasheet) when in saturation mode (fully on).

What is the voltage collector emitter at saturation?

saturation voltage, collector-emitter (VCE(sat)) The voltage between the collector and emitter terminals under conditions of base current or base-emitter voltage beyond which the collector current remains essentially constant as the base current or voltage is increased.

What is saturation VCE?

vce saturation When the BJT is in the saturation, the Vce(sat) means the voltage difference between the Collector and Emitter at the spec. “Ic” current value. The value of Vce(sat) have relation to Ic(sat) and the collector resistance “rc”.

How do you calculate saturation current of a transistor?

How to know if a Transistor is Saturated – Through Actual Testing. You can conclude the operation of a transistor if it is saturated or not by doing actual measurement. Monitor the collector-emitter voltage of your circuit with a DMM. If the reading is below 0.3V, the transistor is at saturation.

What is maximum collector current?

The maximum collector current is normally rated to be the current at which the DC current gain (hFE) falls to 50\% of its maximum value. In the case of a transistor by itself, the maximum base current is normally rated to be 1 / 3 the collector current.

What is saturation voltage of Mosfet?

Saturation Region In the saturation or linear region, the transistor will be biased so that the maximum amount of gate voltage is applied to the device which results in the channel resistance RDS(on being as small as possible with maximum drain current flowing through the MOSFET switch.