Circuit: * C:\Users\Szeli Zoltán\Documents\LTSpice\Teljesítményelektronika\Buck Converter\Simple Buck\Simple Buck.asc Direct Newton iteration for .op point succeeded. Date: Mon Feb 27 12:44:17 2017 Total elapsed time: 5.595 seconds. tnom = 27 temp = 27 method = modified trap totiter = 818428 traniter = 818421 tranpoints = 387576 accept = 363242 rejected = 24334 matrix size = 7 fillins = 0 solver = Alternate Matrix Compiler1: 260 bytes object code size 0.1/0.1/[0.1] Matrix Compiler2: 433 bytes object code size 0.1/0.2/[0.0]