Resonance in driving coil

When placing the hall sensor at the perfect spot, one of the driving coils starts singing. The spikes are being induced to all the other coils it seems. Powerful spikes. I am also getting a decent output, can fill a 47k µF cap up to 28V. Input voltage is below 16V.

In another test this could be tuned to 28V with a load connected and even better speed. But tuning is very difficult. The perfect hall sensor spot is very small.

Category:

Science & Technology

Tags:

• coil
• resonance
• ringing
• output voltage
• driving
• motor

[elias721]

Have you placed the Hall switch above your coil? Can you describe more detail of your work? Thanks!

[chalamadad]

@elias721 The hall is about centered to the coil and touches the edge. You will hear a high frequency beep like a bird singing.

[naimmahmood]

replicator keep on the great work !