Hi
Tuned collector oscillator is simple and have less companent than others , easy to build and a lot of simple transmitter circuits have tuned collector oscillator.I've got no problem with calculating frequency 1/2pi(sqrt L * C ).
Problem is feedback and barkhausen criteria ( A * β >= 1 ) and this oscillator don't have a collector resistor (Rc). impedance of tank circuit have a effect on current of collector like resistor(DC). Should dc biasing design of transistor include that impedance ? there is no really telling everyting about tuned collector oscillator and no calculations on web ! ..... and many questions in my mind.
Can anyone please give me a example with all calculations ? I don't want to learn more theory.
and sorry for bad english
Tuned collector oscillator is simple and have less companent than others , easy to build and a lot of simple transmitter circuits have tuned collector oscillator.I've got no problem with calculating frequency 1/2pi(sqrt L * C ).
Problem is feedback and barkhausen criteria ( A * β >= 1 ) and this oscillator don't have a collector resistor (Rc). impedance of tank circuit have a effect on current of collector like resistor(DC). Should dc biasing design of transistor include that impedance ? there is no really telling everyting about tuned collector oscillator and no calculations on web ! ..... and many questions in my mind.
Can anyone please give me a example with all calculations ? I don't want to learn more theory.
and sorry for bad english
Attachments
-
5.6 KB Views: 415