Index of /Power Electronics/Motors & Motor Control
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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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Last Accessed Size  File
02-18-19 67373  120V Motor Speed Controller-Multiple.pdf
02-18-19 52701  4QD-TEC Tacho generator amplifier.mht
02-18-19 2756358  A Stepping Motor Drive.pdf
02-18-19 37134  Ac Motor Power Brake.pdf
02-18-19 1170568  Adaptive Motor Starter Delays When Necessary.pdf
02-18-19 755653  Adjustable-Speed-Drives-Tutorial.pdf
02-18-19 26272  Alternators as Stepper Motors Comment.pdf
02-18-19 149956  Alternators as Steppers.pdf
02-18-19 9035  Back Emf Pm Motor Speed
02-18-19 87246  Basic PWM DC motor speed control.pdf
02-18-19 14522  Bipolar Stepper Motor Drive
02-18-19 499875  Boosting Stepper Motor Torque.pdf
02-18-19 458645  Cassette Motor Speed Regulator.jpg
02-18-19 72421  Ceiling Fan Control Wiring.jpg
02-18-19 656010  Controller for Small DC Motors.pdf
02-18-19 147634  Controlling DC Motors.pdf
02-18-19 79188  Controlling DC power with Pulse Width Modulation Errata.pdf
02-18-19 122562  Controlling Stepper Motors.pdf
02-18-19 41679  Controlling_Stepper_Motors.pdf
02-18-19 458353  Convert Synchronous Motor to Stepper.pdf
02-18-19 4735937  DC Drives.pdf
02-18-19 1148410  DC Machines - Class Notes.pdf
02-18-19 490973  DC Motor Control.pdf
02-18-19 112401  DC Motor Speed Control with Nraking.pdf
02-18-19 155448  DC Shunt Motor Operation.pdf
02-18-19 397221  DC Shunt Motor.pdf
02-18-19 68343  Dc Motor Control System-Multiple Motors.pdf
02-18-19 374380  Dc Motor Controller-Reversing.pdf
02-18-19 1046  Dc Motor Speed
02-18-19 318745  Design Considerations in Using the Inverter Gate Driver Optocouplers for Variable Speed Motor Drives.pdf
02-18-19 2172845  Designing Digital Control Systems with Stepping Motors Part 1.pdf
02-18-19 126007  Designing Robust and Fault-Tolerant Motion-Control Feedback Systems.pdf
02-18-19 866477  Digital Differentiator to Determine Shaft Acceleration.pdf
02-18-19 442782  Drill Speed Control.pdf
02-18-19 349884  Drill Speed Controller.pdf
02-18-19 381527  Dynamic Brake.pdf
02-18-19 677626  ELECTRIC MOTOR CONTROLS.pdf
02-18-19 13300  Economical Pump
02-18-19 547831  Efficient Motors in Inefficient Systems.pdf
02-18-19 27515  Electrodynamically Induced EMF Comments.pdf
02-18-19 612195  Energy Saving Motor Controller.pdf
02-18-19 735138  Fan Speed Control For Your Furnace.pdf
02-18-19 2609264  Field Oriented Control of AC Motors.pdf
02-18-19 37541  Fractional Horsepower Motor Speed Controls.pdf
02-18-19 680760  Furnace Fan Speed Control.pdf
02-18-19 563476  Gray Code Counter Steps Torque Motor.pdf
02-18-19 11229  H-Bridge Motor Output Driver Stage Np-S.PDF
02-18-19 699968  Hall Effect Tachometer-Direction Sensor.pdf
02-18-19 728482  Industrial Electrical Drives.pdf
02-18-19 485095  Keeping Your AC Drive Alive.pdf
02-18-19 89868  Marine Autopilot Pump Motor Controllers.pdf
02-18-19 577392  Mechatronics Means Motors.pdf
02-18-19 1021342  Mode Selector for Multiphase Stepping Motor.pdf
02-18-19 200557  Model Train Controller with Inertial Brake.pdf
02-18-19 165875  Model Train Throttle Control.pdf
02-18-19 3195589  Motor Control Circuits.pdf
02-18-19 387565  Motor Controller - 3 Phase variador_202 - Italian I
02-18-19 23469  Motor Controller variat2_03.pdf
02-18-19 27987  Motor Controller variat3_20.pdf
02-18-19 9093  Motor Direction Controller.pdf
02-18-19 408954  Motor Revolutions Control.jpg
02-18-19 59251  Motor Rotational Speed Alarm.pdf
02-18-19 233835  Motor Speed Controller.pdf
02-18-19 4740065  Motor Speed Controls - Assorted.pdf
02-18-19 150884  NASA Motor Control Errata.pdf
02-18-19 675635  One Button Controller Issues Step, Run and Halt Commands.pdf
02-18-19 574318  One Chip Amplifier to Control DC Motor Speed.pdf
02-18-19 578274  One Chip Tachometer for Simplifier Motor Control.pdf
02-18-19 56264  One IC motor controller.pdf
02-18-19 623191  Overview of industrial motor control systems.mht
02-18-19 88477  Power Failure Detector.pdf
02-18-19 309611  Power Stepper Motors using Alternators.pdf
02-18-19 3441380  Programmable Speed Controller for Synchronous Motors.pdf
02-18-19 699514  Pulse Sensing on Motor Inrush Current.pdf
02-18-19 886262  Regulated Universal Motor Speed Control.pdf
02-18-19 431209  Remote Speed Controller for Universal Motor.pdf
02-18-19 601524  Resolving Shaft Encoder Data.pdf
02-18-19 143326  Reversing AC Motors.pdf
02-18-19 123268  Saving Power with Motors.pdf
02-18-19 3047029  Selecting and Installing Electric Motors.pdf
02-18-19 180210  Servo Motor Control (basics).pdf
02-18-19 107676  Servo motor Inertia.pdf
02-18-19 7555
02-18-19 567161  Servomotor Thermal Modelling.pdf
02-18-19 78352  Simple Pwm 24V Motor Speed Control.pdf
02-18-19 355645  Small DC Motor Speed Regulator.pdf
02-18-19 635346  Small Line Powered Motor Dynamic Brake.pdf
02-18-19 196882  Solar Controller - Attic Fan Controller.pdf
02-18-19 16578  Solar Triggered Switch.ZIP
02-18-19 612612  Speed Controller for Motors.pdf
02-18-19 217896  Stepper Motors - Misc.pdf
02-18-19 3759269  Stepper Motors as Shaft Encoders.pdf
02-18-19 453510  Stepper Phase Current Made Easy.pdf
02-18-19 40097  Switch Mode Motor Controller.pdf
02-18-19 677051  Switched Reluctance Motors.pdf
02-18-19 474188  Synchronizing When Speed Counts.pdf
02-18-19 557548  Synchronous Motor Phase Control.pdf
02-18-19 537010  Synchronous Pulsing Cuts Three Phase Motor's Dissipation.pdf
02-18-19 123186  Three Phase Controller.pdf
02-18-19 1203635  Thyristor Control of Shunt Wound DC Motors.pdf
02-18-19 2272834  Towards Better Control of Small DC Motors.pdf
02-18-19 20299  Triac Speed Controller.pdf
02-18-19 42074  Universal Motor Remote Speed Control.pdf
02-18-19 84240  Universal Motor Speed Control and Lamp Dimmer.pdf
02-18-19 83724  Use PWM To Maintain Motor Speed & Phase With No Loop Filter.pdf
02-18-19 2933418  Using Alternators as Stepper Motors.pdf
02-18-19 954810  West Bend 136 Motor Starting Kit.pdf

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