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Why collector current is greater than base current?
Answer: Explanation: Base is much narrower and thinner than collectors,hence the majority of charge carriers are received by collector. Hence,collector current is greater than base current.
Does current flow from collector to emitter?
Current freely flows from collector to emitter. Cut-off — The transistor acts like an open circuit. No current flows from collector to emitter. Active — The current from collector to emitter is proportional to the current flowing into the base.
What is the current in the saturation region?
The current source is set at a constant value of 20uA and the collector bias voltage is varied from 0 to 2V. “A Sweeping collector voltage 0 to 2 V with base current constant at 20 µA yields constant 2 mA collector current in the saturation region”
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.
Where is the VCE in the saturation region?
As I have understood, the saturation region is the part that lies to the left of active region (where Vce is almost zero) From what is shown in the image is it not that the 2 mA collector current in Active Region? If the voltage is increased above 2V, there would be no change in the collector current as it’s limited by the base current.
What is current in saturation and active regions of BJT?
In the image ( http://www.allaboutcircuits.com/vol_3/chpt_4/4.html ), the result of SPICE simulation for active mode operation of BJT is shown. The current source is set at a constant value of 20uA and the collector bias voltage is varied from 0 to 2V.