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DC biasing on Q2N2222

Hi,

i created a simple circuir with Q2N2222, intended to bias base at 2V. Ie Ic is about 0.5mA.

what I got from simulation is:

**** SMALL SIGNAL BIAS SOLUTION TEMPERATURE = 27.000 DEG C

******************************************************************************

NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE

( +5v) 752.2E-27 ($N_0001) 731.1E-27 ($N_0002)

755.2E-27

($N_0003)-129.6E-27 ($N_0004) 0.0000

($N_0005) 0.0000 ($N_0006) 0.0000

I guess N_0001 is Vb? how come it is E-27?

thanks

Reply to
PZ
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Netlist? Bias base at 2V ?:-) Re-read your textbook ;-)

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

Post a netlist.

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

(1) Your top posting is getting annoying.

(2) You have no power, "+5v" is being interpreted as a NODE name.

(3) V_V2 has all values set to ZERO

(4) It looks like you're using PSpice? I'm surprised it isn't spitting out (up ?:-) an error message.

(5) You are a sad excuse for a student :-(

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

FWIW, your bottom posting isn't wining any friends (here) either. :-)

Reply to
Richard Kanarek

I post right after the pertinent original material. I enjoy _wining_ and dining with my friends. However I don't care if I'm not _winning_ any friends here ;-)

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

You misspelled it. It should say "I enjoy whining".

Reply to
Steve Hall

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