Vo = Ns/Np*(Vin-Vds-Vl)*D-2(Vd)
Np = turns on primary
Ns = turns on secondary
D = Duty Cycle use 100% to 80% (no feedback)
Vin = 12.0 to 14 Vdc use 12.7 for fully charged storage battery
Vds = switch drain to source voltage drop~ Ipk*Rds/2
Vl = any wiring drop from battery to switch
Vd = fast recovery silicon diode drop ~ 1 V each at current
Ipk = Iave at 100% goes higher for <100%
Np = turns on primary
Ns = turns on secondary
D = Duty Cycle use 100% to 80% (no feedback)
Vin = 12.0 to 14 Vdc use 12.7 for fully charged storage battery
Vds = switch drain to source voltage drop~ Ipk*Rds/2
Vl = any wiring drop from battery to switch
Vd = fast recovery silicon diode drop ~ 1 V each at current
Ipk = Iave at 100% goes higher for <100%
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I think I was just carrying on winding the transformer as I interned too. Its not hard to strip off the wire and try something else.
To be honest I don't fully understand the topology of transformers I have much to learn in this subject, So i cannot really elaborate in this forum as I feel a little lost and I'm not sure where to head from here. I just wanted some advice in winding one. working or not.
I will continue to update my process when I have finished winding the transformer and do some testing. I have an oscilloscope and all the necessary tools.
Thank you for all your suggestions its been an eyeopener to learn how complicated these things really are. I did not think it would be this easy somehow.
To be honest I don't fully understand the topology of transformers I have much to learn in this subject, So i cannot really elaborate in this forum as I feel a little lost and I'm not sure where to head from here. I just wanted some advice in winding one. working or not.
I will continue to update my process when I have finished winding the transformer and do some testing. I have an oscilloscope and all the necessary tools.
Thank you for all your suggestions its been an eyeopener to learn how complicated these things really are. I did not think it would be this easy somehow.
modify for the ESP topology above and using no feedback IE PWM control
use Po (min) = no load /up to (max) IDK ~ 200W
what ever happened to the LT1688?
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SMPS XFMR design app notes (more practical )
http://www.wcmagnetics.com/images/pdf/appnote11.28.10.pdf
see Equation 2 for operational B flux density ( higher flux density and switch frequency = higher core losses )
http://www.wcmagnetics.com/images/pdf/appnote11.28.10.pdf
see Equation 2 for operational B flux density ( higher flux density and switch frequency = higher core losses )
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