Version 4.1
SHEET 1 2336 680
WIRE -160 -192 -192 -192
WIRE -64 -192 -160 -192
WIRE 80 -192 16 -192
WIRE 400 -176 192 -176
WIRE 432 -176 400 -176
WIRE -192 -160 -192 -192
WIRE 80 -160 80 -192
WIRE 192 -160 192 -176
WIRE 432 -160 432 -176
WIRE 192 -64 192 -80
WIRE 320 -64 192 -64
WIRE 432 -64 432 -80
WIRE 432 -64 320 -64
WIRE -192 -48 -192 -80
WIRE 0 -48 -192 -48
WIRE 80 -48 80 -80
WIRE 80 -48 0 -48
WIRE 320 -32 320 -64
WIRE 0 -16 0 -48
FLAG 0 -16 0
FLAG -160 -192 50hz_250V
FLAG 320 -32 0
FLAG 400 -176 out
SYMBOL voltage -192 -176 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -197 7 Left 2
SYMATTR Value SINE(0 353 50)
SYMATTR InstName V1
SYMBOL ind2 64 -176 R0
SYMATTR InstName L1
SYMATTR Value 10H
SYMATTR Type ind
SYMATTR SpiceLine Rser=1m
SYMBOL ind2 176 -176 R0
SYMATTR InstName L2
SYMATTR Value 2.5H
SYMATTR Type ind
SYMBOL res 416 -176 R0
SYMATTR InstName R1
SYMATTR Value 100R
SYMBOL res -80 -208 M90
WINDOW 0 -14 58 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R_supply_current
SYMATTR Value 1m
TEXT 552 -424 Left 4 ;instructions
TEXT 560 -376 Left 2 ;click on run\nthen click on the "50hz_250V" net to plot its voltage waveform\nthen click on the "out" net to plot its voltage waveform\nclick on the plot window,\nthen click on plot settings/add plot pane.\n then click on R1 to plot the output current\nthen click on R_supply_current to plot the input current
TEXT 64 -272 Left 2 !K1 L1 L2 1
TEXT 56 -312 Left 2 ;Transformer
TEXT 576 104 Left 2 ;this is transformer with a 2:1 turns ratio.\nas inductances are proportional to turns squared,\nthe inductance ratio is 4:1
TEXT -8 -360 Left 4 ;transformer circuit
TEXT -384 8 Left 2 !.tran 100m
TEXT 560 64 Left 4 ;circuit description
TEXT 568 -64 Left 2 ;for this 2:1 transformer the secondary voltage \nis half the primary voltage\nand the secondary current is twice the primary current\nthe inductance ratio is the turns ratio squared.
TEXT 560 -112 Left 4 ;expected results
RECTANGLE Normal 240 0 48 -320 2