ANODE RESISTOR
Hi,
It will be inductive and as such be non-linear.
47K is such a common value that you may find it around the corner.
Better take a 1W metalfilm.
Cheers,
Hi,
(Elfa) only had 47k at 10W. Is it bad to have 10W instead of 1W?
It will be inductive and as such be non-linear.
47K is such a common value that you may find it around the corner.
Better take a 1W metalfilm.
Cheers,
I have put two choked psu's on my webserver so you can have a look at them. Please tell me what you think, and also tell me how to improve it.
http://213.67.45.70/no_ripple.psu
http://213.67.45.70/no_ripple2.psu
I haven't taken my need for 400V into consideration, I just wanted to test how much a choke could filter my psu. And the results are breathtaking if you ask me.
http://213.67.45.70/no_ripple.psu
http://213.67.45.70/no_ripple2.psu
I haven't taken my need for 400V into consideration, I just wanted to test how much a choke could filter my psu. And the results are breathtaking if you ask me.
Re: ANODE RESISTOR
Frank,
Not wanting to split hairs, but an inductive resistor is not necessarily non-linear. Its impedance does change with frequency, but ususally this is a linear change. I mean, all resistors have a tempco, which means the resistance changes with temperature, in a linear fashion.
Jan Didden
fdegrove said:Hi,
It will be inductive and as such be non-linear.
47K is such a common value that you may find it around the corner.
Better take a 1W metalfilm.
Cheers,
Frank,
Not wanting to split hairs, but an inductive resistor is not necessarily non-linear. Its impedance does change with frequency, but ususally this is a linear change. I mean, all resistors have a tempco, which means the resistance changes with temperature, in a linear fashion.
Jan Didden
Re:Splitting hair.
Hi,
Now I know where that noise comes from.
Seriously,carbon comp is not inductive?
I didn't know that.
Cheers,
Hi,
That's why one of the few sanctuarys left for the carbon composition resitor is RF circuitry.
Now I know where that noise comes from.
Seriously,carbon comp is not inductive?
I didn't know that.
Cheers,
Carbon composition resistors
Frank,
If you're in a definite and black & white answers mood, of course.
They are as inductive as the wire connecting them (length for length).
This leads to a resonant frequency of about 4GHz - 10GHz.
Now, my hearing doesn't quite reach that far but maybe yours does
Am I worried
Just don't put one in your microwave oven!
Cheers,
Frank,
Seriously,carbon comp is not inductive
If you're in a definite and black & white answers mood, of course.
They are as inductive as the wire connecting them (length for length).
This leads to a resonant frequency of about 4GHz - 10GHz.
Now, my hearing doesn't quite reach that far but maybe yours does
Am I worried
Just don't put one in your microwave oven!
Cheers,
I know that this thread has moved passed this now but for the future: A choke is a term designated to an inductor operating with a DC bias current. The "inductors" used as output filters in switching power supplies are actually chokes because they operate with a DC bias and filter ripple current.
BeanZ
BeanZ
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