#### circuitime

Joined Apr 27, 2020
2
help me please in this question. ı have only 2-3 hours for this question.

Design a voltage divider BJT (silicon) amplifier such that manufacturers’ spec sheets give: βmin = 100, AV0> 300, Z0<6 kΩ, Zin >1 kΩ, ro=50kΩ, Vcc=22 V). Draw the circuit configuration you designed and try to use standart resistor values. Simulate your design in proteus .

#### WBahn

Joined Mar 31, 2012
26,398
Sounds like a exam. You better get moving on it instead of hoping to find someone on the internet to take your exam for you.

#### circuitime

Joined Apr 27, 2020
2
Sounds like a exam. You better get moving on it instead of hoping to find someone on the internet to take your exam for you.
Not a exam . It is homework and I can not move forward.

#### atferrari

Joined Jan 6, 2004
4,425
Voltage divider BJT. Does it exist?

#### dl324

Joined Mar 30, 2015
13,095
It is homework and I can not move forward.
Show us what you've done so far. Also post the complete text of the problem so we can know all of the relevant details.

#### ci139

Joined Jul 11, 2016
1,696
ı have only 2-3 hours for this question.
if it's still valid after 2-3 months you should start taking it seriously

#### OBW0549

Joined Mar 2, 2015
3,566
help me please in this question. ı have only 2-3 hours for this question.
Forget it. You should have asked for help days, or even weeks, ago- not with just 2-3 hours left before your assignment is due. In any case, here on AAC we do not do your homework for you or give out answers; we'll help you solve a problem if you can tell us where you're having difficulty, but we won't solve it for you.

Next time, don't wait til the last minute before seeking help.

#### ci139

Joined Jul 11, 2016
1,696
Design a voltage divider BJT (silicon) amplifier
Does that mean you should amplify a DC voltage divider (such as potentiometer) or does it mean you should amplify arbitrary input voltage . . . in the last case what is your input signal shape (sine ... square-wave) , what is the required phase shift / bandwidth , noise parameters . . . in case of the square-wave - the over-/undershoot settling time ...
what's your freedom of choice for the BJT(-s) . . . what topology you can use

#### atferrari

Joined Jan 6, 2004
4,425
Voltage divider BJT. Does it exist?
After searching I learnt it is the name given to a one transistor amplifier stage using voltage divider polarization. Go figure.

#### ci139

Joined Jul 11, 2016
1,696

#### Papabravo

Joined Feb 24, 2006
16,783
help me please in this question. ı have only 2-3 hours for this question.

Design a voltage divider BJT (silicon) amplifier such that manufacturers’ spec sheets give: βmin = 100, AV0> 300, Z0<6 kΩ, Zin >1 kΩ, ro=50kΩ, Vcc=22 V). Draw the circuit configuration you designed and try to use standart resistor values. Simulate your design in proteus .
Now the Proteus part would have been a challenge for me, 'cuz I don't have a copy of it and I'm not familiar with it. Is it common?

#### MrChips

Joined Oct 2, 2009
24,178
TS deadline long past and gone. Not likely to hear back from TS.

#### schmitt trigger

Joined Jul 12, 2010
463
TS has 2 only posts. The ones posted in this thread.
Agree. He is now AWOL.

#### Papabravo

Joined Feb 24, 2006
16,783
Nope. We've been ghosted!