Hey guys,

Ive been asked to design a Colpitts Oscillator in a common collector configuration using a single BJT. Im really new to this so help is greatly appreciated

Vcc = 12v

Frequency has to be 4K Hz

Vout = 3V

Now i know that the formula for frequency is

fo= 1/[(2*pi)*sqrt(LCt)]

and Ct = c1*c2/c1+c2

How would i work out the values for L and C ??

Ive been looking around the forum and I cant seem to find any information about Colpitts Oscillator in a common collector configuration.

I know this is the basic layout of a common collector colpitts oscillator but what do i need to add to the circuit to make it functional? Does Vin go to the collector or the emitter?

Any help would be greatly appreciated

Cheers guys.

Ive been asked to design a Colpitts Oscillator in a common collector configuration using a single BJT. Im really new to this so help is greatly appreciated

Vcc = 12v

Frequency has to be 4K Hz

Vout = 3V

Now i know that the formula for frequency is

fo= 1/[(2*pi)*sqrt(LCt)]

and Ct = c1*c2/c1+c2

How would i work out the values for L and C ??

Ive been looking around the forum and I cant seem to find any information about Colpitts Oscillator in a common collector configuration.

I know this is the basic layout of a common collector colpitts oscillator but what do i need to add to the circuit to make it functional? Does Vin go to the collector or the emitter?

Any help would be greatly appreciated

Cheers guys.

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