Busy with the 4046 to try to find the self resonance frequency from a L/C combination and lock that frequency to get maximum output.
What I did:
By selecting R1 and C1 create Fc and with R1 make pin11 2.5 Volt
The Loop filter for PC2 on pin 13 has a 90 degree phase difference to lock better...
HELP!!! so, the thing is that i have been trying to build a resonant high frecuency circuit to control a variable capacitor, this capacitor can support high voltage and high frecuency but its variable due to the electrolite it contains..
so I have been tryin to desing it and have come with a...
Hello everyone,
First of all sorry for my bad english.
I want to simulate on Proteus FM demodulation with 4046.
I know that the center frequency Fo depends on the value of R1 and C1.
I try to do this application circuit and it doesn't work too:
I try to change the value of Fo according to the...