Example clamp and gap
Vclamp, snubber, and lg use the typed numbers. Ae is not looked up.
Worked example
Primary inductance 0.001265625 H
Use the Lp you type
Lp 0.001265625 H
Show equation
Lp=Vin_min^2*Dmax^2/(2*Pin*fsw*Krf)
Vclamp 300 V
Show equation
Vclamp=Vin_max+Vor+dVspike
Rsnub 330000 ohm
Show equation
Rsnub=2*Vclamp*(Vclamp-Vor)/(Lleak*Ipk^2*fsw)
Csnub 1.81818181818e-9 F
Show equation
Csnub=Vclamp/(dVripple*Rsnub*fsw)
Psnub 0.272727272727 W
Show equation
Psnub=0.5*Lleak*Ipk^2*fsw*Vclamp/(Vclamp-Vor)
lg 0.00020106192983 m
Show equation
lg=mu0*Np^2*Ae/Lp, mu0=4*pi*1e-7
Empty boxes are not zero. K and Kcrit appear only when D, Lp, fsw, Rload, Ns, and Np are nonzero. Gap length uses the selected Lp, Np, and Ae. High voltage is not a safety approval.