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PSUD Downloads - last updated 23/02/2020

PSUD2 has moved! You can now get the latest downloads and support from the Groups.IO page at https://groups.io/g/duncanampspsud

This page will stay live for the foreseeable future to host older versions

License Terms

The package is copyrighted proprietary software and not public domain. No license fee is required for use of the software by bona-fide hobbyists and non-profit making organisations. Duplication or copying of this software is expressly prohibited including (but not limited to) distribution on CD-ROMs and web sites.

Version History

2.20.0	23/02/2020	Build 74 released. Rectifiers are now stored as XML files for easier sharing and updates. macOS version now available. Fixed multiple issues with Windows 10 permissions.
2.10.0	22/11/2019	Build 63 released. Windows 10 friendly version. The rectifiers.txt file is now stored in the AppData area rather than the Program Files area so this should solve the permission denied errors.
2.0.4	30/12/2014	Build 43 released. Parameters of the source impedance calculators are now remembered between sessions.
2.0.3	15/04/2013	Build 42 released. Stepped current tap now reports correctly.
2.0.2	10/01/2011	Build 41 released. Stepped current load now shows both values on the schematic.
2.0.2	08/01/2011	Build 40 released. Some fixes to help, minimum capacitor value reduced, maximum source impedance increased.
2.0.2	14/11/2010	Build 39 released. Now uses HTML help.
2.0.1	06/11/2010	Build 38 released. The width of the results table can now be re-sized.
2.0.1	17/07/2003	Build 37 released. A couple of dialog boxes which were re-sizeable now fixed.
2.0.1	16/07/2003	Build 36 released. Pressing Enter in the dialog boxes now closes them.
2.0.1	02/06/2003	Build 35 released. Error in reporting of stepped current load, now fixed.
2.0.1	01/06/2003	Minor correction to errors in the help file.
2.0.1	10/3/2002	Build 34 released. Reporting delay now works in seconds instead of milliseconds.
2.0.1	3/9/2002	Build 33 released. Suffix for kilo is now "k" instead of "K", which is the correct international convention.
2.0.1	13/03/2001	Build 32 released. LC filters were reporting incorrect capacitor and inductor voltages, now fixed.
2.0.1	26/01/2001	Build 30 released. Only change is increase in the size of capacitors which can be used to 1F (was 220mF).
2.0.1	29/11/2000	Build 29 released. Fixes problems with voltage doublers not producing the correct output with vacuum tube rectifiers.
2.0.1	02/04/2000	Public release 1 (build 27). Minor tidying up, the software is now officially released...
2.0.0	19/02/2000	Beta build 24 - Problem with stepped current loads now fixed. Sometimes floating point errors would show up, these have been fixed too. Problem with rectifiers.txt not handling tab characters correctly is now fixed.
2.0.0	16/02/2000	Beta build 23 - Bug with large fonts where zoom buttons disappeared now fixed. Suffix for kilo changed from "k" to "K". Reminders of the suffixes to use are now present on the property editors for each component. Results area with min max etc., has been tidied up.
2.0.0	15/02/2000	Beta build 22 - Simulation and report delay both increased from 10 seconds to 30 seconds. The results area now shows Min, Max, Difference, Mean and RMS for each trace.
2.0.0	13/02/2000	Beta build 21 - System info box added. Memory leak which caused memory to be consumed each time a simulation was run is now fixed. When loading files under "auto simulate" mode, the simulation was carried out twice - now fixed. Milliseconds now represented as "ms" instead of "mS". Changing blocks now makes an attempt to recycle values, i.e. changing from half-wave to full-wave will preserve the transformer voltage, resistance, and rectifier type.
2.0.0	13/02/2000	Beta build 20 - includes PSU Wizard, and some bug fixes.
2.0.0	12/02/2000	Beta build 18 - First public release of PSUD II.