Tinman's coil shorting circuit

[penno64]

Bump

Australia Day tomorrow.

Any additional tips?

Regards, Penno

[penno64]

Hi Brad,

With the RTv3 how does one implement a decrease in the magnetic field strength as that field approaches the stator(generating)coil,
and an increase in the magnetic field strength as the field is leaving the stator coil ?

Is it that one stator field is solely used for timing to drive the switch (fet) that connects the other stator field on or just after TDC ?

Any tips greatly appreciated.

Regards, Penno

[tinman]

Hi Brad,

With the RTv3 how does one implement a decrease in the magnetic field strength as that field approaches the stator(generating)coil,
and an increase in the magnetic field strength as the field is leaving the stator coil ?

Is it that one stator field is solely used for timing to drive the switch (fet) that connects the other stator field on or just after TDC ?

Any tips greatly appreciated.

Regards, Penno

You neutralize the permanent magnets field until the rotor segment just passes TDC(in regards to the PM),and you then disconnect the current flowing to the coil around the PM that neutralizes that PMs field,and short the stator coil. This shorted coil forms an apposing field to that of the rotors field by way of transformer induction. This apposing field is then the same field as that of the PMs field,and so the rotors field now has an extremely strong apposing field to push against.
You can then capture the energy from the stator field when the short is opened,and the cycle is repeated at every armature/brush contact segment. The timing is controlled by the AC current produced in the second stator coil,which is also your main transformer coil.


Brad

[penno64]

Thankyou.

Have a wonderful Easter.

Regards, Penno