# Transistor Saturation

Discussion in 'Electronics Homework Help' started by vasimavr, Sep 4, 2014.

1. ### vasimavr

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Sep 4, 2014
Hi I am Vasimavr and I was wondering if you could help me do my homework.

For the circuit of the picture the values we know are:

Vcc = 12,2V
VBE = 0,7 V
β = 500

RE = 500 OHM
RC = 2000 OHM
R2 = 14 KOHM

Find R1 so that the operating point Q of the transistor, to be in saturation.

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5,164
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Dec 18, 2013
You missed something from your post.
"Hi I am Vasimavr and I was wondering if you could help me do my homework"
"Vasimavr"

Gryd3 likes this.
3. ### davennModerator

13,901
1,970
Sep 5, 2009
Hi Vasimavr

Ok, so you must have been studying this subject in class

What have you learnt so far about biasing transistors in general ?
what formula do you think are appropriate to help you solve this question ?

cheers
Dave

4. ### KrisBlueNZSadly passed away in 2015

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Nov 28, 2011
What is the definition of saturation (for a BJT), according to your course material?

5. ### vasimavr

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Sep 4, 2014
I find it a bit complecated exercise.... at theory only have the following

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6. ### vasimavr

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Sep 4, 2014
The cource material for BJT gives:

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7. ### KrisBlueNZSadly passed away in 2015

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Nov 28, 2011
The diagrams you posted in post #5, and the formula you posted in post #6, all relate to FETs, not BJTs!