DLE-TEST22 : The APMC v1.0 (Arduino Pulsed Motor Controller) a very useful tool for testing

DLE-TEST22 : The APMC v1.0 (Arduino Pulsed Motor Controller) a very useful tool for testing
created on february 9, 2013 - JLN Labs - last update april 11, 2013
All informations and diagrams are published freely (freeware) and are intended for a private use and a non commercial use.
Toutes les informations et schémas sont publiés gratuitement ( freeware ) et sont destinés à un usage personnel et non commercial
Cliquez ici pour la version FRANCAISE

Avril 11, 2013 - DLE-TEST22 : Continuing the exploration of the Delayed Lenz Effect, I have developped a very useful tool for the fine tuning of pulsed motors such as Robert Adams or John Bedini's motors or similar pulsed motors design.

Here is the APMC v1.0 (Arduino Pulsed Motor Controller). This is a firmware that I have developped for an Arduino platform. The APMC uses a microcontroller ARDUINO MEGA 2560 board which controls (via an optocoupler) a power driver which uses a transistor MosFet BUZ11.

Here, I have used an Adams or Bedini's unipolar motor (north poles outwards) and a motor coil (air core) which has an inductance of 5 mH.
The rotor is equiped with 6 neodymium magnets (Bremag 27) 22 mm diameter.

The APMC produces a calibrated pulse (initialy predifined by the user) on the motor coil and recomputed so as to produce an optimal torque on the tested motor. The pulse can be delayed Vs the TDC by the user. The TDC is detected by a HALL sensor TLE4935L connected on the Arduino Mega board. The datas are displayed in real time on the LCD screen (2x16), a keypad allows to select and change the control parameters of the APMC.

Below some features of the APMC v1.0 firmware :

pulse delay (in µS) Vs the TDC fully adjustable in real time,
pulse duration (in µS) fully adjustable in real time,
automatic boosting startup sequence at low RPM,
automatic adjustement of the pulse duration Vs the RPM,
real time display of the RPM,
activation/desactivation of the motor pulse output via the keypad,
real time display of the TDC point,
real time full datas logging via the serial port of the Arduino Mega.

Below, a detailled photo of the APMC v1.0 and its features :

Below, the detailled diagram of the APMC and its control board :

Below, a photo of the control board :

The HALL effect sensor TLE4935L is placed just at the TDC point

On the photo below :
the turn speed is 1329 RPM,
the motor coil is energized 500 µS after the TDC
with a programmed duration of 2000 µS
but recomputed by the APMC to 1474 µS so as to optimize the power and the torque.