Re: Ah....but......
Indeed! But if you use a current source to feed the zener, more current may still mean more PSRR. If not, the decrease in zener dynamic impedance will be offset by the decrease in series R, and you'll go in the wrong direction I think.
Here is a typical curve (fig 2):
http://www.vishay.com/docs/85782/85782.pdf
Jan Didden
Jocko Homo said:What happens to the impedance of the part that feeds current to the zener????
Time to calculate PSRR.
Jocko
Indeed! But if you use a current source to feed the zener, more current may still mean more PSRR. If not, the decrease in zener dynamic impedance will be offset by the decrease in series R, and you'll go in the wrong direction I think.
Here is a typical curve (fig 2):
http://www.vishay.com/docs/85782/85782.pdf
Jan Didden
Hi Alcaid.
Sorry for bugging you again about this psu Could you please post the latest schematic for this psu? I find myself searching for it now and then. Its just for ease of searching
Here is a link to the board and silkscreen.
Zener-emitter/follower PCB
I attach a picture of two of them boards
Steen.
Sorry for bugging you again about this psu Could you please post the latest schematic for this psu? I find myself searching for it now and then. Its just for ease of searching
Here is a link to the board and silkscreen.
Zener-emitter/follower PCB
I attach a picture of two of them boards
Steen.
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