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Working the switcher component design.

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This commit is contained in:
David
2012-04-25 00:40:31 +00:00
parent 9c6b3293b5
commit 07d06b10cc
2 changed files with 46 additions and 25 deletions
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trunk/PowerLock Calculations.xlsm
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71
trunk/PowerLock EL/Simulations/LT3690_DC1520A.asc
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@@ -1,18 +1,16 @@
Version 4 Version 4
SHEET 1 2020 1012 SHEET 1 2020 1012
WIRE -208 16 -320 16 WIRE -448 16 -544 16
WIRE -128 16 -208 16 WIRE -128 16 -448 16
WIRE -96 16 -128 16 WIRE 96 16 -128 16
WIRE 96 16 -96 16 WIRE -448 32 -448 16
WIRE -320 32 -320 16
WIRE -208 32 -208 16
WIRE 96 32 96 16 WIRE 96 32 96 16
WIRE -96 80 -96 16 WIRE -192 80 -336 80
WIRE -64 80 -96 80 WIRE -64 80 -192 80
WIRE 320 80 256 80 WIRE 320 80 256 80
WIRE 560 80 400 80 WIRE 560 80 400 80
WIRE -320 128 -320 112 WIRE -544 176 -544 16
WIRE -208 128 -208 96 WIRE -336 176 -336 80
WIRE -128 176 -128 16 WIRE -128 176 -128 16
WIRE -64 176 -128 176 WIRE -64 176 -128 176
WIRE 560 176 560 80 WIRE 560 176 560 80
@@ -20,6 +18,8 @@ WIRE 560 176 256 176
WIRE -144 272 -176 272 WIRE -144 272 -176 272
WIRE -64 272 -80 272 WIRE -64 272 -80 272
WIRE 288 272 256 272 WIRE 288 272 256 272
WIRE -544 368 -544 256
WIRE -336 368 -336 256
WIRE -160 368 -176 368 WIRE -160 368 -176 368
WIRE -64 368 -80 368 WIRE -64 368 -80 368
WIRE 288 368 288 336 WIRE 288 368 288 336
@@ -29,13 +29,14 @@ WIRE 448 368 432 368
WIRE 560 368 560 176 WIRE 560 368 560 176
WIRE 560 368 448 368 WIRE 560 368 448 368
WIRE 656 368 560 368 WIRE 656 368 560 368
WIRE 864 368 656 368
WIRE 448 384 448 368 WIRE 448 384 448 368
WIRE 560 384 560 368 WIRE 560 384 560 368
WIRE 656 384 656 368 WIRE 864 384 864 368
WIRE 448 464 256 464 WIRE 448 464 256 464
WIRE 448 480 448 464 WIRE 448 480 448 464
WIRE 560 480 560 448 WIRE 560 480 560 448
WIRE 656 480 656 464 WIRE 656 544 656 512
WIRE -240 560 -256 560 WIRE -240 560 -256 560
WIRE -160 560 -176 560 WIRE -160 560 -176 560
WIRE -64 560 -80 560 WIRE -64 560 -80 560
@@ -47,14 +48,17 @@ FLAG 96 624 0
FLAG -176 368 0 FLAG -176 368 0
FLAG 448 576 0 FLAG 448 576 0
FLAG 560 480 0 FLAG 560 480 0
FLAG 656 480 0 FLAG 656 544 0
FLAG -320 128 0 FLAG -544 368 0
FLAG -320 16 IN FLAG -544 16 IN
FLAG 656 368 OUT FLAG 656 368 OUT
FLAG -208 128 0 FLAG -448 96 0
FLAG -176 272 0 FLAG -176 272 0
FLAG -256 560 0 FLAG -256 560 0
FLAG 352 560 0 FLAG 352 560 0
FLAG -336 368 0
FLAG -192 80 Enable
FLAG 864 464 0
SYMBOL ind 336 384 R270 SYMBOL ind 336 384 R270
WINDOW 0 32 56 VTop 2 WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2 WINDOW 3 5 56 VBottom 2
@@ -62,31 +66,37 @@ SYMATTR InstName L2
SYMATTR Value 3.3<EFBFBD> SYMATTR Value 3.3<EFBFBD>
SYMBOL res 432 368 R0 SYMBOL res 432 368 R0
SYMATTR InstName R4 SYMATTR InstName R4
SYMATTR Value 316K SYMATTR Value 348K
SYMATTR SpiceLine tol=1 pwr=.1
SYMBOL res 432 464 R0 SYMBOL res 432 464 R0
SYMATTR InstName R5 SYMATTR InstName R5
SYMATTR Value 102K SYMATTR Value 38.3K
SYMATTR SpiceLine tol=1 pwr=.1
SYMBOL res -64 352 R90 SYMBOL res -64 352 R90
WINDOW 0 0 56 VBottom 2 WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2 WINDOW 3 32 56 VTop 2
SYMATTR InstName R6 SYMATTR InstName R6
SYMATTR Value 45.3K SYMATTR Value 73.2K
SYMATTR SpiceLine tol=1 pwr=.1
SYMBOL cap 544 384 R0 SYMBOL cap 544 384 R0
WINDOW 3 24 60 Left 2 WINDOW 3 24 60 Left 2
SYMATTR Value 47<34> SYMATTR Value 47<34>
SYMATTR InstName C4 SYMATTR InstName C4
SYMBOL res 640 368 R0 SYMBOL res 640 416 R0
SYMATTR InstName Rload SYMATTR InstName Rload
SYMATTR Value 3.3 SYMATTR Value 4
SYMATTR SpiceLine tol=1 pwr=16
SYMBOL cap 272 272 R0 SYMBOL cap 272 272 R0
SYMATTR InstName C5 SYMATTR InstName C5
SYMATTR Value 0.68<EFBFBD> SYMATTR Value 0.68<EFBFBD>
SYMBOL voltage -320 16 R0 SYMBOL voltage -544 160 R0
WINDOW 123 0 0 Left 2 WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2 WINDOW 39 0 0 Left 2
WINDOW 3 -399 171 Left 2
SYMATTR Value PULSE(9 36 .8ms .2ms .2ms 1.5ms)
SYMATTR InstName V1 SYMATTR InstName V1
SYMATTR Value 36 SYMBOL cap -464 32 R0
SYMBOL cap -224 32 R0 WINDOW 3 41 31 Left 2
SYMATTR InstName C1 SYMATTR InstName C1
SYMATTR Value 10<31> SYMATTR Value 10<31>
SYMBOL PowerProducts\\LT3690 96 272 R0 SYMBOL PowerProducts\\LT3690 96 272 R0
@@ -116,6 +126,17 @@ WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2 WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3 SYMATTR InstName C3
SYMATTR Value 1000p SYMATTR Value 1000p
SYMBOL voltage -336 160 R0
WINDOW 3 -183 279 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 3 .5ms 0.001us 0.001us 3ms)
SYMBOL current 864 384 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value PULSE(0 2 1.5ms 0 0 .5ms)
TEXT -448 632 Left 2 ;Note:\n If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n Component substitution and printed circuit board layout may significantly affect circuit performance or reliability.\n Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts.\n Copyright <20> 2011 Linear Technology Inc. All rights reserved. TEXT -448 632 Left 2 ;Note:\n If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n Component substitution and printed circuit board layout may significantly affect circuit performance or reliability.\n Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts.\n Copyright <20> 2011 Linear Technology Inc. All rights reserved.
TEXT 168 0 Bottom 2 ;LT3690 - 36V, 4A. 1.5MHz Synchronous Step-Down Switching Regulator with 70<37>A Quiescent Current\nInput: 12V Output: 3.3V @ 4A TEXT 168 0 Bottom 2 ;LT3690 - 36V, 4A. 1.5MHz Synchronous Step-Down Switching Regulator with 70<37>A Quiescent Current\nInput: 12V Output: 3.3V @ 4A
TEXT 568 600 Left 2 !.tran 800u startup TEXT 568 600 Left 2 !.tran 5ms startup