Energy Gains in Adam's patent.

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Jagau posted this 07 September 2024

Is there energy Gains in Adam’s patent, the great question.

I built an Adams motor using a computer HDD to simplify the assembly of the bearings and with the installation of six permanent neodymium magnets on the rotor. This is Robert Adams’ first advice in order to understand the operation and then build a bigger one.

In order to study the behavior of the motor I use two 5 milli-henry coils on each side at 180 degrees from each other with the left side winding CCW and the right CW, the coils are connected in series.

The control system will be done with an Arduino mega 2560 using a hall effect sensor S277 for detecting the position of the rotor relative to the magnets. On the hall sensor S277 that I recovered from a computer fan, only the DO output (pin 2) will be used to give the interrupt detection instruction (it is in the Arduino program) in order to activate a 6N136 optocoupler to give a pulse on the Gate of the Nmos IRF3205 which will activate the two coils in series of the motor as declared by the inventor Mr. Robert Adams.

Photo to come

Jagau

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Vidura posted this 4 days ago

Today I made some more tests, also added a fixture for the hall sensor and a small DC step-up converter for the mosfet driver, so I can power the motor from a 12v battery.

I found that there are two different sweet spots when tuning the pulse.

The first a little earlier, with a steeper current pulse:

The other some ms later seems to work better, although both draw the same power from the battery:

Here a scope shot without power, but the wheel still spinning. An interesting effect when the approaching magnet induces a current in the same direction, but it seems that when the motor is running it adds to the repelling pulse, and the Lenz effect is actually delayed.

It also can be observed that the negative polarity induced by the outgoing magnet is much weaker, but this could be an effect of magnetic remanence of the core, this is a cheap low carbon steel core as used in most universal motors.

In the next picture the scope is connected to the input after the bulk capacitor:

Here the recovered current from the drive coil can be observed as a triangle in the negative direction. It can be seen that the drive technique is still not satisfying, the input power consumed is still significantly greater than the recovered energy. More inductance in the drive coils would likely improve the balance, but the best solution I believe will be a controlled resonant switching to make maximal usage of the power input.

Vidura

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Jagau posted this 8 hours ago - Last Edited 7 hours ago

Update

As a second attempt, I rebuild my small HDD motor with an inductance as specified in the Adams manual, close to 28 mh per pair and with 4:1 ratio surfaces as recommended by R. Adams. Whose magnets have a ratio of 1 and the stator 4 in pole surface.

As a Hall sensor I received the new components from Texas Iinstrument unipolar with mosfet output and better control of the magnetic hysteresis which eliminates certain inconveniences of stabilization, I am eager to try these new magnetic switches.

The new setup is almost finished.

P.S. Nice improvement Vidura

Jagau

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