Index of /Power Electronics/Protection Circuits
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Still online, we are. The code for this website is getting old, but still works well as far as I've seen. I may update it with new code and new features eventually, one day when I have both free time and focus. Until then, the content is still useful, I'm keeping it online. Comments and donations are welcome, but include your email address if you want a reply.

Ideas for the future of the site -
Here are some ideas I've been brainstorming. I don't think to much of the site should change, because it has been successful all these years with very little change. still nearly 1000 visitors a day to the site!
  • donations - I think it might be time to make some changes to the donations. I would rather see people get a lifetime membership and not have to worry about an expire date. here's an idea, a smaller recurring payment monthly, or 4 times a year, then maybe offer a second option, donate enough to cover the cost of the server for one month and you'll get a lifetime membership that never expires.
  • automated account creation - the membership process should be automated. I rarely hear a complaint about anything, but I don't think people feel so safe emailing me a username and password to set up an account. I think people may feel more safe dealing with an automated system. make a donation, then type your account into right in to the computer and have it set up on the spot.
  • members only forum - the site doesn't seem to need a full forum, but it could still benefit from a single simple board or mailing list, maybe. still optional, but maybe only available to members. non-members wouldn't be able to post on or see the forum. for those who donate to openly communicate.
You can send me your comments in the form above. I'm not putting any work into these changes without getting feedback from you!
If we have any web developers out there, we'd love your help! come on, my birthday's tomorrow!

Better forum? -
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Thank you, everyone who has helped support the site over the years. you've done your part, now help me do my part to improve the site with your input.

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new server -
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Last Accessed Size  File
08-24-19 2174  10A Psu Crowbar Circuit.gif
08-24-19 11890  10A Psu Crowbar Circuit.jpg
08-24-19 476593  Analyzing Power Supply Modules.pdf
08-24-19 90201  Automotive Protection Circuit.pdf
08-24-19 696271  Circuit Breakers Vs Fuses.pdf
08-24-19 45848  Compressor Guard Errata.pdf
08-24-19 62567  Crowbar Circuit-Fast & Accurate.pdf
08-23-19 57543  Electronic Fuse.pdf
08-23-19 55096  Fast Reacting Reset Circuit.pdf
08-23-19 98748  Fault Latch Circuit to Protect Switchers.pdf
08-24-19 339520  Feedback Techniques for Crossing the Isolation Boundary.pdf
08-23-19 50504  Foldback Current Limiter.pdf
08-23-19 421687  Foldback Current Limiting.pdf
08-24-19 1571129  Gas Discharge Tubes for Protection.xps
08-24-19 337455  High-Side Current Amplifier Forms 28V Circuit Breaker.mht
08-24-19 184973  Input Transient Protection for Voltage Regulators.pdf
08-24-19 69288  Inrush Current Limiter With Mains Operated Timer.jpg
08-23-19 133940  Lightning Protection.pdf
08-24-19 86734  Overload Delay.pdf
08-24-19 1371125  Overload Protection.pdf
08-23-19 324214  Overvoltage Protection for Modems.pdf
08-23-19 560788  Overvoltage Protection.pdf
08-23-19 102312  Preventing Spurious Tripping of Protection CIrcuits.pdf
08-24-19 Protect current-sense amplifiers from negative overvoltage - Maxim.mht
08-24-19 249157  Protecting Outputs Against Overvoltage.pdf
08-24-19 63278  Protecting Pull Up Transistors.pdf
08-24-19 404399  Protecting Your Power Supply.pdf
08-23-19 274439  Protection Circuits For Solid State Power Supplies.pdf
08-24-19 95969  Resettable High Speed Fuse Uses Fet As A Sense Resistor.pdf
08-23-19 78372  Short Circuit Protection Of High Side Switches.pdf
08-23-19 157696  Simple Current-Sense Technique Eliminating A Sense Resistor.pdf
08-23-19 203832  Spikes and Curves.pdf
08-23-19 467779  Surge Voltage Suppression.pdf
08-24-19 25277  Thermal Overload Cut Out.pdf
08-24-19 73594  Three Phase Detector.pdf
08-24-19 733848  Transient Protection for Current Sense Circuits.pdf
08-24-19 823175  Transient Suppression.pdf
08-24-19 422945  Transient Suppressors.pdf
08-24-19 115100  Transient suppression techniques.pdf
08-24-19 22125  Voltage-Polarity Protection Circuit.pdf

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