Design a voltagedivider biasing small signal amplifier circuit using BJT transistor with
Vcc = 18V, Icq = 2mA ± 3%, emitter voltage VE = 10% of Vcc , and Vceq = 7V.
The expected β range is 80 to 200. Only commercial available the resistors are to be used.
I tried to calculate... and when i put the circuit on Multisim i cannot get what i want... attached is the circuit...
I got the relation that R1 =169/11 R2
using Vb=(R2/(R1+r2))Vcc where Vcc is 18V as stated above and Vb=VeVbe=1.80.7=1.1V is this correct?
And using KVL,
Vcc+IcqRc+Vceq+IeRe=0
and find the relation between Re and Rc. Is this correct?
If both correct how shall i find the relationship between R1 R2 and Rc Re?
Thanks a lot for your help!!
It'd be best if someone can design it for me.. thanks!! cuz i am a circuit idiot~ >.<
Vcc = 18V, Icq = 2mA ± 3%, emitter voltage VE = 10% of Vcc , and Vceq = 7V.
The expected β range is 80 to 200. Only commercial available the resistors are to be used.
I tried to calculate... and when i put the circuit on Multisim i cannot get what i want... attached is the circuit...
I got the relation that R1 =169/11 R2
using Vb=(R2/(R1+r2))Vcc where Vcc is 18V as stated above and Vb=VeVbe=1.80.7=1.1V is this correct?
And using KVL,
Vcc+IcqRc+Vceq+IeRe=0
and find the relation between Re and Rc. Is this correct?
If both correct how shall i find the relationship between R1 R2 and Rc Re?
Thanks a lot for your help!!
It'd be best if someone can design it for me.. thanks!! cuz i am a circuit idiot~ >.<
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