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If you are sure the software package you are installing IS genuine, if you trust Duncan does not want your secrets, if you got it directly from Duncan's site, on a legitimate network connection, then

Hi Pete, As background, the message comes up because I'm not a registered developer as this costs $$$'s per year and I don't charge for the software, or use advertising, so it's a cost I don't really

Hi Duncan, That's the one my Mac is running - 12.3.1.? Sorry I wasn't clear - I got that message when I downloaded the software and it wouldn't install it. Thank you!Pete

Hi Pete, Can you confirm what version of MacOS you are using? I'm just upgrading to the latest version (Monterey 12.3.1) to see if that's the problem. Also can you let me know if you are having the

Hi, I have a new Mac after years of PC only, and when I download the Mac version from the website I get a message saying: *“psud2_build73” cannot be opened because the developer cannot be

Hi, There's no IOS or Android versions, and none planned at this time. The routemap for PSUD3 encompasses Windows / MacOS and additionally Linux. Regards, Duncan

IS THERE A PSUD2 VERSION FOR IPAD? Thanks in advance. Peace, DrRick

I install psu designer on Linux with Playonlinux, the program starts and simulates but the graph does not appear, how did you solve?

Thanks to both Duncan and Paul, that's exactly what the sim indicates.? Well, that sure showed me for trying to take a shortcut.? I now have a CRC network which works like a charm. Tom's MOV

Scratch the reverse-biased diode idea: adding a tiny capacitor (10 nF) before the choke and looking at the voltage shows the choke input goes below zero by about a diode drop at the zero-crossing of

Sorry Duncan, tried again with 1uF and works. Bst rgds Felipe ________________________________ De: [email protected] <[email protected]> en nombre de Duncan Munro

Hi Duncan, Yes I did see it, I tried to insert a small between the bridge rectifier & the choke input but PSUDII still open the window with exceeded PIV), also I don't know how to put a MOV (and

Hi, There was a thread on something similar only a few days ago where the contributors gave some good tips on choke input supplies ->

How can avoid the rectifier PIV exceed value, changing diodes? what's? The last choke is a CMC but can't simulate.

As the current doesn't instantaneously drop to zero in real life, the voltage generated will be limited.? HOWEVER, your power line is not a perfect sine wave forever... there are inductive devices

Try "Figure out the load resistance, E/I (Volts, Amps), then divide that by 1200. The result is in Henries." In 50Hz lands use "1000". So for 24VDC and 0.6A we have 40r, divide by 1200 is

There could be a danger of damage to the rectifier; the problem is the choke value being too low. It's essential on a choke supply for the current to be continuous through the choke without dropping

PSUD gives me this result on a particular power supply (yes, the choke is underspecified on purpose).? Playing with rectifier leak mitigates the problem somewhat, but it still looks unnatural.? Is

Is the 39 nF silver mica cap (between the HT legs) a correct value? I can only find 39 pF in Mouser catalog

Thank you Evert, I don't remember where to post the link but Duncan posted that the recommended "simulate" set is for "100ms" after a reporting delay of "0" S to see the best real ripple your PSU is