Index of /Power Electronics
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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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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!!!

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[To Parent Directory]

 AC Line Power Information
 Batteries and Battery Chargers
 Current Regulation
 DC-DC Converters
 Design Tools
 Electrical Engineering & Power Generation
 Energy Efficiency & Power Saving
 Generation and Generator Control
 Motors & Motor Control
 Noise Filters & Suppression
 Power Factor Correction
 Power Supplies
 Power Supplies-AC
 Power Supplies-High Voltage
 Power Supplies-Linear
 Power Supplies-Regulated - Linear
 Power Supplies-Switching
 Power Supplies-Unregulated
 Power Supply Protection
 Protection Circuits
 Renewable Energy
 SMPS Info
 Switching Circuits
 Thyristors-SCRs and Triacs
 Transformers and Magnetics
 Uninterruptible Power Supplies

Last Accessed Size  File
11-23-17 79304  115-230V Auto Switch.pdf
11-20-17 259213  150 Watt Switch Mode Regulator.pdf
11-20-17 52701  4QD-TEC Tacho generator amplifier.mht
11-22-17 3236754  50W Forward Converter With Synchronous Rectification slup120.pdf
11-23-17 3492  555_PWM.gif
11-22-17 32717  5V 3A Lab Power Supply.pdf
11-23-17 2756358  A Stepping Motor Drive.pdf
11-23-17 1170568  Adaptive Motor Starter Delays When Necessary.pdf
11-22-17 980454  Adjusting Voltage References with a Digitally Controlled Potentiometer.pdf
11-20-17 240764  An SCR Pre-Regulated Power Supply.pdf
11-22-17 223933  Anti Surge Voltage Regulator.pdf
11-22-17 655932  BC911 Battery Charging System Design for Intercontinental Electronics.pdf
11-23-17 1686922  Back powering Why are the lights on when the power is off - Analog Wire - Blogs - TI E2E Community_aspx.mht
11-23-17 1808524  Boost Effieicncy in Flyback Converters.pdf
11-19-17 1114667  Car Battery Tester.pdf
11-20-17 1518147  Clean Power for Every IC, Part 1 Understanding Bypass Capacitors.mht
11-20-17 1465572  Clean Power for Every IC, Part 2 Choosing and Using Your Bypass Capacitors.mht
11-23-17 1389280  Clean Power for Every IC, Part 3 Understanding Ferrite Beads.mht
11-23-17 45848  Compressor Guard Errata.pdf
11-18-17 656010  Controller for Small DC Motors.pdf
11-11-17 79188  Controlling DC power with Pulse Width Modulation Errata.pdf
11-23-17 458353  Convert Synchronous Motor to Stepper.pdf
11-23-17 483630  Create an Inverting Power Supply From a Step-Down Regulator.pdf
11-23-17 635943  Creating a Split-Rail Power Supply With a Wide Input Voltage Buck Regulator.pdf
11-19-17 490973  DC Motor Control.pdf
11-19-17 112401  DC Motor Speed Control with Nraking.pdf
11-23-17 933712  Depletion-Mode MOSFET - The Forgotten FET.pdf
11-23-17 318745  Design Considerations in Using the Inverter Gate Driver Optocouplers for Variable Speed Motor Drives.pdf
11-05-17 2172845  Designing Digital Control Systems with Stepping Motors Part 1.pdf
11-22-17 866477  Digital Differentiator to Determine Shaft Acceleration.pdf
11-22-17 3572936  Digital Speed Control Servo.pdf
11-23-17 442782  Drill Speed Control.pdf
11-23-17 207716  Driving Power MOSFETs in High-Current, Switch Mode Regulators.pdf
11-03-17 381527  Dynamic Brake.pdf
11-23-17 2823465  Examining Wireless Power Transfer.pdf
11-11-17 11329  FanCircuit.jpg
11-22-17 500970  Feedback Techniques for Crossing the Isolation Boundary.pdf
11-23-17 37541  Fractional Horsepower Motor Speed Controls.pdf
11-20-17 917565  Fraser Electronics Sweep Generator for Alberta Department of Agriculture.pdf
11-22-17 207788  Fraser Technologies 12V to 160V Regulated DC-DC Converter.pdf
11-23-17 398530  Fraser Technologies Battery Cycler-Recharger for Reservaphone.pdf
11-19-17 309165  Fraser Technologies Ltd 5-12 KV Power Supply for Mineral Separation.pdf
11-22-17 829661  Fraser Technologies Ltd Positive and Negative 20KV Power Supplies for Mineral Separation.pdf
11-22-17 220479  Good Quality Bench Power Supply.pdf
11-19-17 563476  Gray Code Counter Steps Torque Motor.pdf
11-22-17 699968  Hall Effect Tachometer-Direction Sensor.pdf
11-20-17 1072934  High-Power CC-CV Battery Charger.pdf
11-23-17 3605969  How to Protect Li-ion Battery Packs _ EE World Online.mhtml
11-08-17 564139  Hybrid Servo System Eliminate Hunting.pdf
11-12-17 3773454  Inesco Report 1981 - Nuclear Fusion.pdf
11-19-17 33116  LM3578AN Typical SMPS application.pdf
11-19-17 1608996  LND150 - High Voltage Depletion Mode MOSFETs.mht
11-23-17 3447233  Lab Power Supplies.pdf
11-22-17 216106  Low Current Source with Germanium Diode.pdf
11-23-17 1286917  Magnetic Core Characteristics.pdf
11-18-17 186554  Matching MOSFET Drivers to MOSFETs.pdf
11-21-17 1021342  Mode Selector for Multiphase Stepping Motor.pdf
11-22-17 675635  One Button Controller Issues Step, Run and Halt Commands.pdf
11-22-17 574318  One Chip Amplifier to Control DC Motor Speed.pdf
11-20-17 578274  One Chip Tachometer for Simplifier Motor Control.pdf
11-19-17 1369315  Power Guard.pdf
11-16-17 111906  PowerFactorBasics.pdf
11-19-17 1722112  Protect Your Air Conditioner Compressor.pdf
11-23-17 699514  Pulse Sensing on Motor Inrush Current.pdf
11-21-17 52506  RFI Free Solid State Thermostat Errata.pdf
11-22-17 415009  Rechargeable Battery Tester.pdf
11-20-17 15222  Regulated Battery Charger.pdf
11-20-17 1217541  Resistor Based Servo Replaces Mechanical Governors in Motors.pdf
11-18-17 547367  Resolving Stepper Augular Position to 0.1°.pdf
11-23-17 101207  SCR Zero Cross Trigger Liits Maximum Load Power.pdf
11-16-17 620324  Selecting the Best Inductors for DC-DC Converters.pdf
11-23-17 135626  Simple Test for Transformers.pdf
11-23-17 50267  Simple low dropout discrete regulator.pdf
11-23-17 355645  Small DC Motor Speed Regulator.pdf
11-22-17 635346  Small Line Powered Motor Dynamic Brake.pdf
11-21-17 17408  Softstart Circuit with SCR.pdf
11-22-17 399114  Stabilizing a High Speed Digital Servo.pdf
11-23-17 3759269  Stepper Motors as Shaft Encoders.pdf
11-20-17 92  _About This Section.txt
11-20-17 123904  intro_to_power_supplies.pdf

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