Version 4 SHEET 1 3200 5016 WIRE -2080 -304 -2144 -304 WIRE -1920 -304 -2000 -304 WIRE -1856 -304 -1920 -304 WIRE -1696 -304 -1792 -304 WIRE -1552 -304 -1616 -304 WIRE -1440 -304 -1552 -304 WIRE -1232 -304 -1440 -304 WIRE -912 -304 -1232 -304 WIRE -704 -304 -912 -304 WIRE -912 -256 -912 -304 WIRE -704 -160 -704 -304 WIRE -1232 -144 -1232 -304 WIRE -912 -112 -912 -176 WIRE -768 -112 -912 -112 WIRE -912 -48 -912 -112 WIRE -1920 32 -1920 -304 WIRE -1552 32 -1552 -304 WIRE -1440 32 -1440 -304 WIRE -704 48 -704 -64 WIRE -496 48 -704 48 WIRE -272 48 -416 48 WIRE -160 48 -272 48 WIRE -32 48 -160 48 WIRE 272 48 224 48 WIRE 384 48 272 48 WIRE 496 48 384 48 WIRE -2144 64 -2144 -304 WIRE -912 96 -912 32 WIRE -1232 144 -1232 -64 WIRE -1136 144 -1232 144 WIRE -1056 144 -1136 144 WIRE -976 144 -1056 144 WIRE -272 192 -272 48 WIRE -272 192 -912 192 WIRE -272 240 -272 192 WIRE -160 240 -160 48 WIRE 272 240 272 48 WIRE 384 240 384 48 WIRE 496 256 496 48 WIRE -1232 272 -1232 144 WIRE -1136 272 -1136 144 WIRE -1056 304 -1056 144 WIRE -976 304 -1056 304 WIRE -704 304 -704 48 WIRE -704 304 -912 304 WIRE -704 368 -704 304 WIRE -2144 512 -2144 144 WIRE -1920 512 -1920 96 WIRE -1920 512 -2144 512 WIRE -1552 512 -1552 96 WIRE -1552 512 -1920 512 WIRE -1440 512 -1440 96 WIRE -1440 512 -1552 512 WIRE -1232 512 -1232 336 WIRE -1232 512 -1440 512 WIRE -1136 512 -1136 336 WIRE -1136 512 -1232 512 WIRE -704 512 -704 432 WIRE -704 512 -1136 512 WIRE -272 512 -272 304 WIRE -272 512 -704 512 WIRE -160 512 -160 304 WIRE -160 512 -272 512 WIRE 96 512 96 144 WIRE 96 512 -160 512 WIRE 272 512 272 304 WIRE 272 512 96 512 WIRE 384 512 384 304 WIRE 384 512 272 512 WIRE 496 512 496 336 WIRE 496 512 384 512 FLAG -2144 512 0 FLAG -2144 -304 Supply FLAG 496 48 5V SYMBOL voltage -2144 48 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 'V_Supply' SYMBOL res 480 240 R0 SYMATTR InstName R_LOAD SYMATTR Value 200 SYMBOL ind -512 64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 WINDOW 39 -23 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 1.5m SYMATTR SpiceLine Rser=8 SYMBOL res -1712 -288 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R_VOR SYMATTR Value 13 SYMBOL cap -1456 32 R0 WINDOW 39 24 84 Left 2 SYMATTR InstName C0 SYMATTR Value 100n SYMATTR SpiceLine Rser=48 SYMBOL res -1248 -160 R0 SYMATTR InstName RZ SYMATTR Value 47.5k SYMBOL zener -1216 336 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName Zener SYMATTR Value BZX384B6V8 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -1152 272 R0 SYMATTR InstName C1 SYMATTR Value 4.7n SYMBOL npn -976 96 R0 SYMATTR InstName Q2 SYMATTR Value BC846B SYMBOL cap -912 288 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 1n SYMBOL res -928 -64 R0 SYMATTR InstName R2 SYMATTR Value 12k SYMBOL res -928 -272 R0 SYMATTR InstName R1 SYMATTR Value 5.49k SYMBOL schottky -688 432 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 256 240 R0 WINDOW 39 24 84 Left 2 SYMATTR InstName C3 SYMATTR Value 2.2µ SYMATTR SpiceLine Rser=7 SYMBOL PowerProducts\\LT1117-5 96 48 R0 SYMATTR InstName U2 SYMBOL pnp -768 -64 M180 SYMATTR InstName Q3 SYMATTR Value BC856B SYMBOL polcap -1568 32 R0 WINDOW 39 24 85 Left 2 SYMATTR InstName C4 SYMATTR Value 22µ SYMATTR SpiceLine Rser=8 SYMBOL cap 368 240 R0 WINDOW 39 24 84 Left 2 SYMATTR InstName C5 SYMATTR Value 100n SYMATTR SpiceLine Rser=56 SYMBOL cap -176 240 R0 WINDOW 39 24 84 Left 2 SYMATTR InstName C6 SYMATTR Value 2.2µ SYMATTR SpiceLine Rser=7 SYMBOL polcap -288 240 R0 WINDOW 39 24 85 Left 2 SYMATTR InstName C7 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2 SYMBOL res -2096 -288 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R_Supply SYMATTR Value 1 SYMBOL cap -1936 32 R0 SYMATTR InstName C_Dummy SYMATTR Value 1m SYMBOL diode -1856 -288 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 TEXT -2712 112 Left 2 !.tran 0 100m 0 startup TEXT -2704 192 Left 2 !*.step param V_Supply list 15 18 24 32 35\n.step param V_Supply list 18 24 32\n*.param V_Supply = 32 TEXT -544 -64 Left 2 ;SDR0805-152KL TEXT 32 80 Left 2 ;beispielhaft TEXT -2448 0 Left 2 ;V_LIMITS = 15...35 V\nV_REC = 18...32 V TEXT -304 -344 Left 2 ;PRE-REGULATOR TEXT -2712 296 Left 2 !.meas tran I_IN find I(R_Supply) at 99m\n.meas tran I_OUT find I(R_LOAD) at 99m\n.meas Verlust param {V_Supply*I_IN - 5 * I_OUT}\n.meas Wirkungsgrad param { (5 * I_OUT) / (V_Supply*I_IN) } RECTANGLE Normal -64 576 -1328 -400 2