RF
Hello
I experimented with the 7 strand litz wire coil today.
All the coils in the yellow diagram are the one coil of litz wire.
Using the one coil as seen in the diagram. I setup 3 strands as attraction and 4 in repel. Using 2 drive circuits and two hall sensors it was possible to energize the coil as the magnet approached. Then energize the coils as the magnet passed by, pushing the magnets on there way out.
This worked well and produced a lot of torque; it also created a magnetic felid conflict if you allowed the switching from one polarity to another to get to close. There was a drop in current as the two magnetic fields collided. This needs a bit more looking into and I will document it for later.
What I wanted to try was collecting the high voltage from the repulsion 4 strand sides of the circuit, and switch the attraction 3 strand side. Engaging 300 volts from a 1500 400 volt capacitor created a burst of acceleration and an EMF spike so high it collapsed the electrical system. To my surprise it even stopped my wireless net work system and our internet went down while it was running. That really surprised me at first when other members of the family complained about the internet going down I had no idea it was my motor.
At the moment I have very little data to report because the test was very unstable.
It so hard to keep things stable long enough to get watts and current measurements.
Some diodes brunt out and I lost a MOSFET.
The currents at that load is very high . I go back to it tomorrow and make changes to shielding and so on.
Hello
I experimented with the 7 strand litz wire coil today.
All the coils in the yellow diagram are the one coil of litz wire.
Using the one coil as seen in the diagram. I setup 3 strands as attraction and 4 in repel. Using 2 drive circuits and two hall sensors it was possible to energize the coil as the magnet approached. Then energize the coils as the magnet passed by, pushing the magnets on there way out.
This worked well and produced a lot of torque; it also created a magnetic felid conflict if you allowed the switching from one polarity to another to get to close. There was a drop in current as the two magnetic fields collided. This needs a bit more looking into and I will document it for later.
What I wanted to try was collecting the high voltage from the repulsion 4 strand sides of the circuit, and switch the attraction 3 strand side. Engaging 300 volts from a 1500 400 volt capacitor created a burst of acceleration and an EMF spike so high it collapsed the electrical system. To my surprise it even stopped my wireless net work system and our internet went down while it was running. That really surprised me at first when other members of the family complained about the internet going down I had no idea it was my motor.
At the moment I have very little data to report because the test was very unstable.
It so hard to keep things stable long enough to get watts and current measurements.
Some diodes brunt out and I lost a MOSFET.
The currents at that load is very high . I go back to it tomorrow and make changes to shielding and so on.
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