Hi.
I did it once, long ago. Can you refresh how is it ?
A potentiometer 'Rc' adjusting the charge time, another potentiometer 'Rd' adjusting the discharge time yielded a variable frequency oscillator and at the same time, the time 'Hi' and the time 'Lo'.
The sum of the times was the waveform period (and the oscillation frequency).
Is it just varying 'Rc' and 'Rd' with a fixed C; or there is more to it ?
What is desired is with potentiometer 'Rc' and potentiometer 'Rd' set both at exact same resistance value, to produce a true 50% duty cycle.
I did it once, long ago. Can you refresh how is it ?
A potentiometer 'Rc' adjusting the charge time, another potentiometer 'Rd' adjusting the discharge time yielded a variable frequency oscillator and at the same time, the time 'Hi' and the time 'Lo'.
The sum of the times was the waveform period (and the oscillation frequency).
Is it just varying 'Rc' and 'Rd' with a fixed C; or there is more to it ?
What is desired is with potentiometer 'Rc' and potentiometer 'Rd' set both at exact same resistance value, to produce a true 50% duty cycle.