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You are right, it was a specific example of some measurements that I had, but assuming that everything is perfectly linear, what you wrote will be correct.
Thank you
It "charges" when the PWM is high, so for 10% it's 1us and for 80% it's 8us.
The purpose is that it will charge in both edge cases that I mentioned earlier to 0.7V and discharge fast to zero wheb the PWM goes low.
The maximum voltage is not a problem, because I'll need no more than 1V, I only need to have a linear dependency to the supply voltage.
Minimum voltage - Less than 0.1V.
Fall time from 1V to "zero" - less than 0.5us.
What is your opinion?
So more information and a sketch:
I'd like to have pairs of supply voltage + duty cycle that will give me linearly a peak of 0.7V of the sawtooth.
Example:
for 15V and 17% I'll get a sawtooth that goes up to 0.7V
for 3V and 83% I'll also get 0.7V max in the sawtooth
It means that I need that...
Hi!
I have a supply voltage of 3V-15V and a 100kHz PWM.
I'd like to generate a sawtooth that goes up from 0V to the supply voltage when the PWM is at "high" and falls very fast to zero when the PWM is "low".
The important thing is that it will be linear and the "ramp" will vary linearly...
Hi.
I am looking for a formal proof for the spiral locus of an impedance when increasing the frequency.
Can anybody refer to somewhere it is proved?
Any book or formal suggestions will be great. I didn't find it in the basic microwave engineering books.
Thanks a lot.
Avihai.
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