On 04/14/2018 01:00 PM, John Larkin wrote:
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AJ is (probably unintentionally) hilarious when he wigs out.
I did this thing I thought was kinda cool, people were discussing non-isolated supplies using diodes and random crap, it took humanity
50,000 years of technological progress to develop the isolation transformer and now everyone just wants to get rid of it, oh well. Look Ma, no capacitors:
Version 4 SHEET 1 2888 808 WIRE 768 -48 544 -48 WIRE 928 -48 768 -48 WIRE 1152 -48 992 -48 WIRE 1248 -48 1152 -48 WIRE 1440 -48 1248 -48 WIRE 1680 -48 1536 -48 WIRE 2288 -48 2080 -48 WIRE 2432 -48 2288 -48 WIRE 2768 -48 2528 -48 WIRE 1248 32 1248 -48 WIRE 544 96 544 -48 WIRE 2080 96 2080 -48 WIRE 2320 96 2080 96 WIRE 2480 96 2480 16 WIRE 2480 96 2400 96 WIRE 768 128 768 -48 WIRE 2288 160 2288 -48 WIRE 1248 192 1248 112 WIRE 1488 192 1488 16 WIRE 1488 192 1248 192 WIRE 2208 192 1488 192 WIRE 1680 256 1680 -48 WIRE 1840 256 1680 256 WIRE 2080 256 2080 96 WIRE 2080 256 1920 256 WIRE 2480 288 2480 96 WIRE 544 304 544 176 WIRE 928 304 544 304 WIRE 1152 304 1152 -48 WIRE 1152 304 992 304 WIRE 2768 304 2768 -48 WIRE 1840 336 1680 336 WIRE 2080 336 1920 336 WIRE 1488 400 1248 400 WIRE 2288 400 2288 224 WIRE 2288 400 1488 400 WIRE 2208 432 2208 192 WIRE 544 464 544 304 WIRE 1248 496 1248 400 WIRE 2080 560 2080 336 WIRE 2320 560 2080 560 WIRE 2480 560 2480 352 WIRE 2480 560 2400 560 WIRE 1488 608 1488 400 WIRE 2480 608 2480 560 WIRE 544 672 544 528 WIRE 768 672 768 192 WIRE 768 672 544 672 WIRE 1248 672 1248 576 WIRE 1248 672 768 672 WIRE 1440 672 1248 672 WIRE 1680 672 1680 336 WIRE 1680 672 1536 672 WIRE 2080 672 2080 560 WIRE 2208 672 2208 496 WIRE 2208 672 2080 672 WIRE 2432 672 2208 672 WIRE 2768 672 2768 384 WIRE 2768 672 2528 672 WIRE 2768 736 2768 672 FLAG 2768 736 0 SYMBOL voltage 544 80 R0 WINDOW 3 -231 53 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value SINE(0 120 60) SYMBOL diode 928 -32 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D3 SYMATTR Value RRE07VS4S SYMBOL npn 1440 16 R270 SYMATTR InstName Q1 SYMATTR Value 2SC4081 SYMBOL pnp 1440 608 M90 SYMATTR InstName Q2 SYMATTR Value 2SA1774 SYMBOL ind2 1936 240 R90 WINDOW 0 4 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L1 SYMATTR Value 470mH SYMBOL ind2 1824 352 R270 WINDOW 0 32 54 VTop 2 WINDOW 3 4 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 470mH SYMBOL npn 2432 16 R270 SYMATTR InstName Q3 SYMATTR Value 2SC4081 SYMBOL pnp 2432 608 M90 SYMATTR InstName Q4 SYMATTR Value 2SA1774 SYMBOL res 1232 480 R0 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL res 1232 16 R0 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL zener 2304 224 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D5 SYMATTR Value 1N5369B SYMBOL res 2752 288 R0 SYMATTR InstName R3 SYMATTR Value 1k SYMBOL zener 2224 496 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D6 SYMATTR Value 1N5369B SYMBOL res 2416 80 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 1k SYMBOL res 2416 544 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 1k SYMBOL zener 2496 352 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D7 SYMATTR Value BZX84C15L SYMBOL diode 928 320 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D4 SYMATTR Value RRE07VS4S SYMBOL diode 784 192 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value RRE07VS4S SYMBOL diode 560 528 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value RRE07VS4S TEXT 342 184 Left 2 !.tran 1 TEXT 1808 136 Left 2 !K L1 L2 0.98