written by Thane Heins on ou.com regarding his peripeteia and why the bemf is delayed.
the vic with xformer may be seen as a motor, the pulsing primary behaving similar to passing magnets.
ponder on this:
1)
THE BACK EMF INDUCED COUNTER-MAGNETIC FIELD PRODUCTION, TIMING AND STRENGTH ARE ALL A FUNCTION OF THE CURRENT FLOWING IN THE COIL.
2)
THE CURRENT FLOWING IN THE COIL IS A FUNCTION OF THE COIL IMPEDENCE
(AC RESISTANCE OR INDUCTIVE REACTANCE + DC RESISTANCE).
3)
THE COIL IMPEDENCE IS A FUNCTION OF THE FREQUENCY OR RATE OF MAGNET APPROACH.
4)
AS LONG AS THE MAGNET IS APPROACHING THE COIL ABOVE THE THRESHOLD FREQUENCY - COIL IMPEDENCE WILL NOT ALLOW THE COIL TO PRODUCE A MAGNETIC FIELD BECAUSE CURRENT CANNOT FLOW IN THE COIL.
5)
CURRENT CAN ONLY FLOW WHEN THE AC RESISTANCE DROPS TO ZERO.
6)
THE AC RESISTANCE DROPS TO ZERO WHEN THE MAGNET IS NEITHER APPROACHING NOR RECEDING FROM THE COIL OR TDC (TOP DEAD CENTRE).
7)
AT TDC (OR THEREABOUTS) CURRENT FLOWS AND PRODUCES THE DELAYED MAGNETIC FIELD WHEN THE COIL INDUCED AND CAPACITIVELY STORED VOLTAGE IS MAXIMUM.
THE COIL'S CORE HYSTERESIS CURVE MAY PLAY A ROLE IN DELAYING THE HV COIL'S INDUCED MAGNETIC FIELD UNTIL THE RIGHT MOMENT AS WELL. THE DELAYED MAGNETIC FIELD MAY ALSO PLAY A ROLE IN REDUCING THE CORE DRAG (COGGING TORQUE) ON THE ROTOR - SO THE MOTOR MAY DO LESS WORK BECAUSE THE DISCHARGING HV VOLTAGE TURNS THE GENERATOR COIL INTO A MOTOR COIL FOR A BRIEF INSTANT AND THE PRIME MOVER MAY SEE LESS CORE DRAG. - CREDIT TO HOPTOAD WHOEVER THE F HE IS?
AT OR AROUND TDC A "PERFECT STORM" IS CREATED WHERE COIL IMPEDENCE IS MINIMUM (ONLY DC RESISTANCE OF THE COIL) - COIL CURRENT IS MAXIMUM - AND A DELAYED MAGNETIC FIELD IS PRODUCED WHICH PUSHES AWAY THE NOW RECEDING MAGNET AND ATTRACTS THE NEXT OPPOSITE POLE MAGNET ONE THE ROTOR.
9)
I DOUBT IT IS THE "ONLY" HOLY GRAIL BUT I AM CERTAINLY WILLING TO BET IT IS THE FIRST SCIENTIFICALLY VALID EXPLANATION - THAT WILL ACTUALLY BE ACCEPTED BECAUSE IF LOGIC RATHER THAN EMOTION IS ALLOWED TO DICTATE - THE ABOVE INFORMATION IS 100% VALID AND ALREADY FULLY KNOW AND UNDERSTOOD.
T
