Index of /Power Electronics/Power Supplies
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03/06/2014
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.


09/04/2010
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!


12/20/2009
Better forum? -
We are currently using vbulletin, but maybe there's a simpler alternative that would better fit the site. What do you think of this one? http://schematicforums.com/seo/ Please let us know what you think, keep vBulletin, or switch to SEO. Comment box is below.


09/29/2009
ideas or comments?
please send us your comments or suggestions or any ideas you might have for the site. this is the easiest way for you to let us know what you think. just type in the box above and send.

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.




11/25/2009
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The bandwidth reset time is now set to 20 hours instead of a week. We hope this helps you get what you need without causing any problems with the site.


05/07/2008
new server -
this week, we've moved the website to a bigger faster server. we have doubled the weekly download limit to 20mb and are now allowing hot-linking, so more people can get the documents they're looking for. this new server is still relatively low cost, but is a bit more to pay for each month then the last server. we still need your donations to help with this. thank you all who have supported the site and community!!!


01/24/2008
upload files - upload.schematicsforfree.com If you have files you'd like to add to the site, we'd love to add them. Please don't upload anything illegal, harmful, or copyrighted. We will do our best to screen the files and put them online.


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Folders
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 Help for Half-Bridge Push-Pull Converter_files
 IR Reference Design
 Navy Power Supply Reliability Book
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 Products
 Switch Mode Power Supplies
 Switching Power Supplies
 Topswitch SWPS_files


Last Accessed Size  File
03-24-19 51561  12V 3W standby PS.pdf
03-24-19 2253409  12V ATX Power supply.pdf
03-24-19 1553863  12V-5V Standby Power Supply Design - Complete.pdf
03-24-19 39767  13_8 V - 15 A from a PC Power Supply.mht
03-24-19 2290395  13_8 V - 15 A from a PC Power Supply.pdf
03-24-19 27555  1KW Off Line +-70V SMPS.pdf
03-24-19 476441  1kwflybacksmpsse2.jpg
03-24-19 294734  200 Watt Modified PC Power Supply 13_5 Volt 14 Amps.mht
03-24-19 75142  200W ATX PC POWER SUPPLY.mht
03-24-19 304128  240W off line PS with PFCf.pdf
03-24-19 18977  500w_220v_inverter_corrected__th.jpg
03-24-19 83696  500w_220v_inverter_corrected__th.png
03-24-19 63089  5V 5W standby PS.pdf
03-24-19 10662  5V Switching Power supply.pdf
03-24-19 715217  A New Approach to Switching Regulators.pdf
03-24-19 102463  A simple guide to selecting power MOSFETs.pdf
03-24-19 392601  AN-4106 Multiple Output SMPS using Fairchild Power Switch IC.pdf
03-24-19 46563  ATX Power Supply.gif
03-24-19 290069  ATX Power Supply.jpg
03-24-19 909076  ATX Power supply.mht
03-24-19 415043  Application Note 288 System-Oriented DC-DC Conversion.pdf
03-24-19 472692  Assorted Power Supply Circuits.mht
03-24-19 412031  Audio Noise Suppression Techniques.pdf
03-24-19 496947  Ban Looms for External Transformers.pdf
03-24-19 32642  Bi-Polar Power Supply With LM386.gif
03-24-19 88639  Bi-Polar Power Supply With LM386.jpg
03-24-19 89018  Building a DC-DC Power Supply that Works.pdf
03-24-19 210113  Charge Pump Inverters.sch
03-24-19 1518147  Clean Power for Every IC, Part 1 Understanding Bypass Capacitors.mht
03-24-19 1465572  Clean Power for Every IC, Part 2 Choosing and Using Your Bypass Capacitors.mht
03-24-19 1389280  Clean Power for Every IC, Part 3 Understanding Ferrite Beads.mht
03-24-19 1196363  Common Mode Filter Inductor Design.zip
03-24-19 24825  DC Inductor Design Examples.mht
03-24-19 136583  DC-DC Converter Tutorial.pdf
03-24-19 59392  DC-to-DC Converter Combats EMI.pdf
03-24-19 41985  Design of Switch Mode Power Supplies.mht
03-24-19 726260  Design of Switch Mode Power Supplies.pdf
03-24-19 583088  Designing Multi output power supplies - an22.pdf
03-24-19 106245  Flyback Transformer Design for Topswitch.pdf
03-24-19 147648  Frequently Asked Questions About MAGNETICS Materials.pdf
03-24-19 163540  Glossary of Electronic and Engineering Terms; Voltage Quadrupler.mht
03-24-19 43948  Half-Bridge Push-Pull Converter Design Tool.mht
03-24-19 30932  Help for Half-Bridge Push-Pull Converter Design Program.mht
03-24-19 16902  Help for Half-Bridge Push-Pull Converter.htm
03-24-19 1398688  Help for Half-Bridge Push-Pull Converter.pdf
03-24-19 33893  High-V DC-DC Converter Is Ideal for MEMS.pdf
03-24-19 267962  Implementing Flyback Transformer Design for Continuous Mode.mht
03-24-19 1131440  Inverter Core Selection.pdf
03-24-19 55284  Iron Powder Cores.mht
03-24-19 967327  KA5L0380R 3A 800V Power Switch.pdf
03-24-19 364515  Large capacitor charge controllers - Car Audio.pdf
03-24-19 74530  Lvps.gif
03-24-19 24155  Lvps.jpg
03-24-19 6189  Lvps.txt
03-24-19 198656  MC44603 in a 110W Output SMPS Application.pdf
03-24-19 26618  MOSFET Drive.pdf
03-24-19 253734  Making Voltage Doublers and Multipliers - Electric Circuit.mht
03-24-19 111664  Navy Power Supply Reliability Design and Manufacturing Guidelines - Index.mht
03-24-19 31076  One 9V battery gives +18, +25, +33V.pdf
03-24-19 35547  Output Transformer Design and Winding.mht
03-24-19 13211912  PI Expert Power Supply Design Software Ver 4.0.4.exe
03-24-19 25825  PSSchematic.gif
03-24-19 140186  PSSchematic.jpg
03-24-19 267251  Power Supply Design 4.2 DESIGN FOR RELIABILITY.xps
03-24-19 266219  Power Supply Design 4.5 MANUFACTURING CONSIDERATIONS.xps
03-24-19 37084  Power Supply Instability.mht
03-24-19 391168  Power supply design techniques for EMI and Safety.pdf
03-24-19 38498  Power_Supply_Balanced_Microphone_Preamplifier_Circuit_Diagram.png
03-24-19 5589  RECYCLING OBSOLETE COMPUTER POWER SUPPLIES.htm
03-24-19 35600  Reverse Engineering an Output Transformer - Nondestructively.mht
03-24-19 81688  SB-Projects PC PSU Repair Tips.mht
03-24-19 2671898  Simple power supply voltage splitters based on audio amplifiers - Part 3.mht
03-24-19 130796  Soft-Start Circuit For Power Amps.mht
03-24-19 144504  Spectro-202-scamp-BW.gif
03-24-19 52364  Spectro-202-scamp-BW.jpg
03-24-19 65822  Spreadsheet simplifies switch-mode power-supply flyback-transformer design.mht
03-24-19 8726  Suppy Rail Splitter.gif
03-24-19 30584  Suppy Rail Splitter.jpg
03-24-19 2884122  TI Power Reference Design Cookbook.pdf
03-24-19 1119808  TLE2426 20mASupply Rail Splitter IC.pdf
03-25-19 252615  TOPSwitch Tips, Techniques & Troubleshooting Guide.pdf
03-24-19 3475  Topswitch SWPS.htm
03-24-19 211178  Transformer Construction.pdf
03-24-19 247020  Transformer Design Consideration for off-line Flyback Converters AN-4140.pdf
03-24-19 115100  Transient suppression techniques.pdf
03-24-19 496524  UN61.pdf
03-24-19 255971  UN61_Schaltschema.pdf
03-24-19 40202  USB-Powered Bipolar Supply.pdf
03-24-19 32315  Underestimating Complexity of Power Supply Design.mht
03-24-19 2029099  Virtual Ground (regulated!) - and Rail Splitter Circuits!.mht
03-24-19 103897  Virtual Ground Circuits.mht
03-24-19 6208  Voltage Doubler.gif
03-24-19 29980  Voltage Doubler.jpg
03-24-19 1361407  Voltage Multiplier and Voltage Doubler Circuits.mht
03-24-19 32958  alpinedrive.gif
03-24-19 88034  alpinedrive.jpg
03-24-19 46052  ckt.jpg
03-24-19 72115  ckt2.jpg
03-24-19 27519  ckt3.jpg
03-24-19 27245  ckt4.jpg
03-24-19 86406  core ZR-42915-TC.pdf
03-24-19 25887  hgw_smps_in_e.pdf
03-24-19 14283  klz1250418274p.jpg
03-24-19 77687  new.jpg
03-24-19 25650  newsch.jpg
03-24-19 63791  phan_supp.jpg
03-24-19 28428  phantsch.gif
03-24-19 194551  phantsch.jpg
03-24-19 75124  powersupli2.gif
03-24-19 205012  powersupli2.jpg
03-24-19 54538  powersupli3.gif
03-24-19 128241  powersupli3.jpg
03-24-19 61563  powersupli4.gif
03-24-19 161846  powersupli4.jpg
03-24-19 88965  powersupli5.gif
03-24-19 271187  powersupli5.jpg
03-24-19 145388  pr_05f_cta_pwm_2.jpg
03-24-19 29285  rfi_cap_voltage.pdf
03-24-19 82364  switchmodecoreloss.pdf
03-24-19 20497  tl494.jpg
03-24-19 125642  tl494alternatefb1ln.jpg
03-25-19 891769  ucc37322.pdf
03-24-19 32064  untitled.gif
03-24-19 74348  untitled.jpg

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