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Version 4
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SHEET 1 2212 2084
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WIRE -544 48 -592 48
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WIRE -416 48 -464 48
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WIRE -368 48 -416 48
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WIRE -288 48 -368 48
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WIRE -176 48 -288 48
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WIRE -48 48 -112 48
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WIRE 64 48 -48 48
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WIRE 176 48 64 48
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WIRE 368 48 256 48
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WIRE 624 48 368 48
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WIRE 832 48 688 48
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WIRE 944 48 832 48
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WIRE 1200 48 944 48
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WIRE 1440 48 1200 48
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WIRE 1488 48 1440 48
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WIRE 1200 80 1200 48
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WIRE 944 96 944 48
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WIRE 368 112 368 48
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WIRE 240 192 224 192
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WIRE 320 192 240 192
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WIRE 832 192 832 48
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WIRE 1488 192 1488 48
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WIRE -592 208 -592 48
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WIRE 1200 208 1200 160
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WIRE -368 224 -368 48
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WIRE -288 224 -288 48
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WIRE -48 224 -48 48
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WIRE 64 224 64 48
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WIRE 944 224 944 176
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WIRE 992 224 944 224
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WIRE 1008 224 992 224
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WIRE 368 256 368 208
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WIRE 416 256 368 256
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WIRE 448 256 416 256
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WIRE 944 272 944 224
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WIRE 368 304 368 256
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WIRE 1200 336 1200 272
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WIRE -592 432 -592 288
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WIRE -368 432 -368 288
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WIRE -368 432 -592 432
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WIRE -288 432 -288 288
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WIRE -288 432 -368 432
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WIRE -48 432 -48 288
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WIRE -48 432 -288 432
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WIRE 64 432 64 288
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WIRE 64 432 -48 432
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WIRE 368 432 368 384
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WIRE 368 432 64 432
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WIRE 832 432 832 256
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WIRE 832 432 368 432
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WIRE 944 432 944 352
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WIRE 944 432 832 432
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WIRE 1200 432 1200 400
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WIRE 1200 432 944 432
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WIRE 1488 432 1488 272
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WIRE 1488 432 1200 432
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WIRE -592 464 -592 432
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WIRE 368 624 368 608
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WIRE 368 624 304 624
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WIRE 304 640 304 624
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WIRE 1360 656 1360 576
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WIRE 1296 704 1264 704
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WIRE 304 720 304 704
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WIRE -784 752 -784 704
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WIRE -784 752 -1152 752
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WIRE -640 752 -784 752
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WIRE 400 752 240 752
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WIRE 496 752 480 752
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WIRE -1152 784 -1152 752
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WIRE 896 784 880 784
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WIRE 960 784 896 784
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WIRE 1168 784 1056 784
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WIRE 1264 784 1264 704
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WIRE 1264 784 1248 784
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WIRE 1360 784 1360 752
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WIRE 1488 784 1360 784
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WIRE 1616 784 1568 784
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WIRE 672 800 672 656
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WIRE 368 816 368 624
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WIRE 592 816 576 816
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WIRE 640 816 592 816
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WIRE 1360 816 1360 784
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WIRE -640 832 -640 752
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WIRE 240 832 240 752
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WIRE 336 832 240 832
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WIRE 960 832 704 832
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WIRE 1616 832 1616 784
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WIRE 496 848 496 752
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WIRE 496 848 400 848
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WIRE 640 848 496 848
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WIRE 48 864 16 864
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WIRE 176 864 128 864
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WIRE 336 864 176 864
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WIRE 1264 864 1264 784
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WIRE 1296 864 1264 864
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WIRE -1040 880 -1104 880
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WIRE -784 880 -784 752
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WIRE -784 880 -816 880
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WIRE 176 896 176 864
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WIRE 240 896 240 832
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WIRE 672 912 672 864
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WIRE 960 912 960 864
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WIRE 368 928 368 880
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WIRE -1040 944 -1072 944
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WIRE -640 944 -640 912
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WIRE -640 944 -816 944
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WIRE -528 944 -640 944
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WIRE -640 960 -640 944
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WIRE -528 976 -528 944
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WIRE 1360 976 1360 912
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WIRE 1616 976 1616 896
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WIRE -1216 1008 -1232 1008
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WIRE -1040 1008 -1216 1008
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WIRE -784 1008 -816 1008
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WIRE -704 1008 -784 1008
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WIRE 176 1008 176 976
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WIRE 240 1008 240 976
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WIRE -1152 1072 -1152 864
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WIRE -1040 1072 -1152 1072
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WIRE -752 1072 -816 1072
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WIRE -704 1072 -704 1008
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WIRE -640 1072 -640 1040
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WIRE -640 1072 -704 1072
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WIRE -528 1072 -528 1040
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WIRE -528 1072 -640 1072
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WIRE -752 1104 -752 1072
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WIRE -640 1104 -640 1072
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WIRE -1072 1136 -1072 944
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WIRE -784 1136 -784 1008
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WIRE -784 1136 -1072 1136
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WIRE -1104 1200 -1104 880
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WIRE -752 1200 -752 1168
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WIRE -752 1200 -1104 1200
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WIRE -640 1200 -640 1168
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WIRE -640 1200 -752 1200
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WIRE -1104 1216 -1104 1200
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WIRE 480 1312 480 1264
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WIRE 240 1424 16 1424
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WIRE 336 1424 304 1424
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WIRE 480 1424 480 1392
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WIRE 608 1424 480 1424
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WIRE 688 1424 608 1424
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WIRE 720 1424 688 1424
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WIRE 480 1472 480 1424
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WIRE 608 1472 608 1424
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WIRE -192 1488 -192 1440
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WIRE 16 1520 16 1424
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WIRE 64 1520 16 1520
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WIRE 240 1520 144 1520
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WIRE 336 1520 336 1424
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WIRE 336 1520 304 1520
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WIRE 176 1584 176 1376
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WIRE -48 1600 -96 1600
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WIRE 16 1600 16 1520
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WIRE 16 1600 -48 1600
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WIRE 144 1600 16 1600
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WIRE 336 1616 336 1520
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WIRE 336 1616 208 1616
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WIRE 480 1616 480 1536
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WIRE 480 1616 336 1616
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WIRE -192 1632 -192 1568
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WIRE -144 1632 -192 1632
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WIRE 16 1632 -144 1632
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WIRE 144 1632 16 1632
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WIRE 176 1696 176 1648
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WIRE -192 1728 -192 1632
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WIRE 16 1728 16 1632
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WIRE 336 1792 336 1744
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WIRE 608 1808 608 1536
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WIRE 608 1808 448 1808
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WIRE 512 1840 512 1696
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WIRE -192 1856 -192 1792
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WIRE 16 1856 16 1792
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WIRE 448 1856 448 1808
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WIRE 480 1856 448 1856
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WIRE 608 1872 608 1808
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WIRE 608 1872 544 1872
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WIRE 336 1888 336 1872
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WIRE 432 1888 336 1888
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WIRE 480 1888 432 1888
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WIRE 336 1920 336 1888
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WIRE 432 1936 432 1888
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WIRE 512 1952 512 1904
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WIRE 336 2064 336 2000
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WIRE 432 2064 432 2000
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FLAG 992 224 vfeed
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FLAG 416 256 ifeed
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FLAG 240 192 vg
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FLAG -592 464 0
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FLAG -416 48 vcc
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FLAG 368 928 0
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FLAG 368 608 vcc
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FLAG 240 1008 0
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FLAG 16 864 ifeed
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FLAG 672 912 0
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FLAG 672 656 vcc
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FLAG 960 912 0
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FLAG 896 784 vsq
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FLAG 1616 784 vg
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FLAG 176 1696 0
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FLAG 176 1376 vcc
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FLAG -48 1600 vfeed
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FLAG 592 816 verr
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FLAG 1360 976 0
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FLAG 1360 576 vcc
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FLAG 1616 976 0
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FLAG -1104 1216 0
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FLAG -784 704 vcc
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FLAG -1216 1008 vsq
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FLAG 1440 48 out
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FLAG 176 1008 0
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FLAG 304 720 0
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FLAG -192 1856 0
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FLAG 16 1856 0
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FLAG -192 1440 vcc
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FLAG -144 1632 vref
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FLAG 480 1264 vcc
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FLAG 336 1744 vref
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FLAG 688 1424 verr
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FLAG 336 2064 0
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FLAG 512 1952 0
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FLAG 512 1696 vcc
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FLAG 432 2064 0
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SYMBOL voltage -592 192 R0
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WINDOW 123 0 0 Left 0
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WINDOW 39 24 124 Left 2
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SYMATTR InstName V1
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SYMATTR Value 5
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SYMBOL cap -64 224 R0
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SYMATTR InstName C1
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SYMATTR Value 100<EFBFBD>
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SYMATTR SpiceLine Rser=0.8
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SYMBOL schottky 624 64 R270
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WINDOW 0 32 32 VTop 2
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WINDOW 3 0 32 VBottom 2
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SYMATTR InstName D1
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SYMATTR Value UPSC600
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL ind 160 64 R270
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WINDOW 0 32 56 VTop 2
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WINDOW 3 5 56 VBottom 2
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SYMATTR InstName L1
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SYMATTR Value 47<EFBFBD>
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SYMATTR SpiceLine Rser=0.1
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SYMBOL cap 816 192 R0
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SYMATTR InstName C2
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SYMATTR Value 0.1<EFBFBD>
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SYMATTR SpiceLine Rser=8m
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SYMBOL res 352 288 R0
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SYMATTR InstName R2
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SYMATTR Value 0.1
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SYMBOL res 928 80 R0
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SYMATTR InstName R3
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SYMATTR Value 680k
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SYMBOL res 928 256 R0
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SYMATTR InstName R4
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SYMATTR Value 10k
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SYMBOL res 496 736 R90
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WINDOW 0 0 56 VBottom 2
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WINDOW 3 32 56 VTop 2
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SYMATTR InstName R6
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SYMATTR Value {Ra}
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SYMBOL res 224 880 R0
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SYMATTR InstName R7
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SYMATTR Value {Rb}
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SYMBOL Digital\\srflop 1008 736 R0
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SYMATTR InstName A2
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SYMATTR SpiceLine Vhigh=5 Vlow=0
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SYMBOL nmos 320 112 R0
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SYMATTR InstName M1
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SYMATTR Value IPB600N25N3
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SYMBOL cap 304 1408 R90
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WINDOW 0 0 32 VBottom 2
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WINDOW 3 32 32 VTop 2
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SYMATTR InstName C3
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SYMATTR Value 3.3p
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SYMBOL cap 304 1504 R90
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WINDOW 0 0 32 VBottom 2
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WINDOW 3 32 32 VTop 2
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SYMATTR InstName C4
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SYMATTR Value 10n
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SYMBOL res 160 1504 R90
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WINDOW 0 0 56 VBottom 2
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WINDOW 3 32 56 VTop 2
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SYMATTR InstName R9
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SYMATTR Value 33k
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SYMBOL npn 1296 656 R0
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SYMATTR InstName Q1
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SYMATTR Value 2N3904
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SYMBOL pnp 1296 912 M180
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SYMATTR InstName Q2
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SYMATTR Value 2N3906
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SYMBOL res 1264 768 R90
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WINDOW 0 0 56 VBottom 2
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WINDOW 3 32 56 VTop 2
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SYMATTR InstName R10
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SYMATTR Value 1.2k
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SYMBOL res 1584 768 R90
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WINDOW 0 0 56 VBottom 2
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WINDOW 3 32 56 VTop 2
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SYMATTR InstName R11
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SYMATTR Value 10
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SYMBOL cap 1600 832 R0
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SYMATTR InstName C5
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SYMATTR Value 10n
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SYMBOL current 1488 192 R0
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WINDOW 123 0 0 Left 0
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WINDOW 39 0 0 Left 0
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SYMATTR InstName I1
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SYMATTR Value {Il}
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SYMBOL zener 1216 400 R180
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WINDOW 0 24 64 Left 2
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WINDOW 3 24 0 Left 2
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SYMATTR InstName D2
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SYMATTR Value 1N5378B
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL res 1216 176 R180
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WINDOW 0 36 76 Left 2
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WINDOW 3 36 40 Left 2
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SYMATTR InstName R1
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SYMATTR Value 3.3k
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SYMBOL zener 1216 272 R180
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WINDOW 0 24 64 Left 2
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WINDOW 3 24 0 Left 2
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SYMATTR InstName D3
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SYMATTR Value 1N5378B
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL Misc\\NE555 -928 976 R0
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SYMATTR InstName U4
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SYMBOL cap -768 1104 R0
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SYMATTR InstName C6
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SYMATTR Value 1<EFBFBD>
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SYMBOL res -1168 768 R0
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SYMATTR InstName R12
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SYMATTR Value 10k
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SYMBOL cap -656 1104 R0
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SYMATTR InstName C7
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SYMATTR Value 1.8n
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SYMBOL res -656 944 R0
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SYMATTR InstName R13
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SYMATTR Value 22k
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SYMBOL res -656 816 R0
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SYMATTR InstName R14
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SYMATTR Value 1.2k
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SYMBOL schottky -544 976 R0
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SYMATTR InstName D4
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SYMATTR Value 1N5817
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL res 144 848 R90
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WINDOW 0 0 56 VBottom 2
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WINDOW 3 32 56 VTop 2
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SYMATTR InstName R16
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SYMATTR Value {Rb}
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SYMBOL res 192 992 R180
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WINDOW 0 36 76 Left 2
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WINDOW 3 36 40 Left 2
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SYMATTR InstName R15
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SYMATTR Value {Ra}
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SYMBOL cap 288 640 R0
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SYMATTR InstName C8
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SYMATTR Value 1<EFBFBD>
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SYMBOL cap 48 224 R0
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SYMATTR InstName C10
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SYMATTR Value 100n
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SYMATTR SpiceLine Rser=10m
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SYMBOL res -448 32 R90
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WINDOW 0 0 56 VBottom 2
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WINDOW 3 32 56 VTop 2
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SYMATTR InstName R17
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SYMATTR Value 0
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SYMBOL res -208 1472 R0
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SYMATTR InstName R19
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SYMATTR Value 3.3k
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SYMBOL cap 0 1728 R0
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SYMATTR InstName C11
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SYMATTR Value 100n
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SYMBOL cap -384 224 R0
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SYMATTR InstName C12
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SYMATTR Value 100<EFBFBD>
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SYMATTR SpiceLine Rser=0.3
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SYMBOL cap -304 224 R0
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SYMATTR InstName C13
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SYMATTR Value 100n
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SYMATTR SpiceLine Rser=10m
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SYMBOL FerriteBead -144 48 R90
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WINDOW 0 -16 0 VBottom 2
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SYMATTR InstName L3
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SYMATTR Value 140n
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SYMATTR SpiceLine Ipk=0.5 Rser=0.056 Rpar=90 Cpar=640f mfg="W<EFBFBD>rth Elektronik" pn="782632620 WE-CBA 0603"
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SYMBOL References\\LT1634-2.5 -192 1760 R0
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SYMATTR InstName U5
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SYMBOL OpAmps\\AD8565 672 768 R0
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SYMATTR InstName U6
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SYMBOL OpAmps\\AD8565 368 784 R0
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SYMATTR InstName U1
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SYMBOL OpAmps\\AD8565 176 1552 R0
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SYMATTR InstName U2
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SYMBOL schottky 464 1472 R0
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SYMATTR InstName D5
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SYMATTR Value 1N5817
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL schottky 592 1472 R0
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SYMATTR InstName D6
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SYMATTR Value 1N5817
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL res 464 1296 R0
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SYMATTR InstName R18
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SYMATTR Value 10k
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SYMBOL res 320 1776 R0
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SYMATTR InstName R5
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SYMATTR Value 1.8k
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SYMBOL res 320 1904 R0
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SYMATTR InstName R8
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SYMATTR Value 10k
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SYMBOL OpAmps\\AD8565 512 1808 R0
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SYMATTR InstName U3
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SYMBOL cap 416 1936 R0
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SYMATTR InstName C9
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SYMATTR Value 1<EFBFBD>
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TEXT 1600 328 Left 2 !.tran 0 16m 0
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TEXT 520 280 Left 2 ;snubber here
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TEXT 1592 184 Left 2 !.step param Il list 10u 2m 4m 6m 8m 10m 12m 14m
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TEXT 1592 232 Left 2 !.meas Pin AVG -V(vcc)*I(V1)
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TEXT 1592 256 Left 2 !.meas Pout AVG V(OUT)*I(I1)
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TEXT 1592 280 Left 2 !.meas Eff param Pout/Pin
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TEXT 1576 160 Left 2 !*.param Il=6m
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TEXT -296 -24 Left 2 !.ic V(vcc)=5 I(L1)=0
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TEXT 344 984 Left 2 !.param Ra=98k
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TEXT 344 1008 Left 2 !.param Rb=5.2k
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TEXT -296 -56 Left 2 ;Ferrite Bead, approx. CBM321609U600T
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TEXT 352 1040 Left 2 ;The AP8567 is the quad version
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TEXT 352 1064 Left 2 ;AP8648 for battery-powered and-or low voltage <5V
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TEXT 352 1088 Left 2 ;The OP462 is the better version of the AP8567
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TEXT -232 1904 Left 2 ;Any 2.5V zener-voltage reference would do
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TEXT 672 1808 Left 2 ;makeshift minimum voltage selector, \nuse a set maximum voltage as a soft start
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