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Your Name 3 years ago
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      Current_Limit_Circuit/docs/notes
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      Current_Limit_Circuit/footprints/godzilla.kicad_mod
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      Current_Limit_Circuit/pics/__godzilla_godzilla_drawn_by_kamizono_spookyhouse__sample-14839e3cb619c09c03c8a6f9fdb08a33.bmp
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      Current_Limit_Circuit/pics/__godzilla_godzilla_drawn_by_kamizono_spookyhouse__sample-14839e3cb619c09c03c8a6f9fdb08a33.jpg
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      Current_Limit_Circuit/resources/snvs746d.pdf

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Current_Limit_Circuit/docs/notes View File

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on the patent
its the Vbe TC that is used.
on the lm334,
it's the IC, and an external diode for the TC equalizing (if you use the example circuit later on to
balance the TC)
on the patent
figure 3 is the basic example.
fig 1 omits the current mirror.
figure 3 is described in the details section of the patent
figure 4 or 5 has additional balancing.
todo: build figure 20, and test to see what kind of current lowering I can get
todo: build transistor only circuit of this current source, based on schematic in LM334 data sheet.
might need multiple emitter transistor EDIT: I don't think so. they aren't common in standalone packages.
only on ic die. and some are not true multi emitter, but just two bonded leads to the same emitter.
https://en.m.wikipedia.org/wiki/Multiple-emitter_transistor
article in edn covers what bob pease has for a circuit. similar to ti data sheet with transistor, but drives
constant current for an led

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X142627047Y-72087619D01*
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X143497904Y-72619809D01*
X143110857Y-72619809D01*
X144078476Y-73055238D02*
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X144465523Y-73055238D01*
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X144513904Y-72910095D01*
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X144223619Y-72764952D01*
X144126857Y-72716571D01*
X144078476Y-72619809D01*
X144078476Y-72571428D01*
X144126857Y-72474666D01*
X144223619Y-72426285D01*
X144368761Y-72426285D01*
X144465523Y-72474666D01*
X128003904Y-88392000D02*
X127907142Y-88343619D01*
X127762000Y-88343619D01*
X127616857Y-88392000D01*
X127520095Y-88488761D01*
X127471714Y-88585523D01*
X127423333Y-88779047D01*
X127423333Y-88924190D01*
X127471714Y-89117714D01*
X127520095Y-89214476D01*
X127616857Y-89311238D01*
X127762000Y-89359619D01*
X127858761Y-89359619D01*
X128003904Y-89311238D01*
X128052285Y-89262857D01*
X128052285Y-88924190D01*
X127858761Y-88924190D01*
X128487714Y-89359619D02*
X128487714Y-88343619D01*
X129068285Y-89359619D01*
X129068285Y-88343619D01*
X129552095Y-89359619D02*
X129552095Y-88343619D01*
X129794000Y-88343619D01*
X129939142Y-88392000D01*
X130035904Y-88488761D01*
X130084285Y-88585523D01*
X130132666Y-88779047D01*
X130132666Y-88924190D01*
X130084285Y-89117714D01*
X130035904Y-89214476D01*
X129939142Y-89311238D01*
X129794000Y-89359619D01*
X129552095Y-89359619D01*
X132116285Y-88972571D02*
X132890380Y-88972571D01*
X133374190Y-88682285D02*
X134148285Y-88972571D01*
X133374190Y-89262857D01*
X143824476Y-83009619D02*
X143485809Y-82525809D01*
X143243904Y-83009619D02*
X143243904Y-81993619D01*
X143630952Y-81993619D01*
X143727714Y-82042000D01*
X143776095Y-82090380D01*
X143824476Y-82187142D01*
X143824476Y-82332285D01*
X143776095Y-82429047D01*
X143727714Y-82477428D01*
X143630952Y-82525809D01*
X143243904Y-82525809D01*
X142300476Y-69293619D02*
X142639142Y-70309619D01*
X142977809Y-69293619D01*
X143751904Y-70261238D02*
X143655142Y-70309619D01*
X143461619Y-70309619D01*
X143364857Y-70261238D01*
X143316476Y-70212857D01*
X143268095Y-70116095D01*
X143268095Y-69825809D01*
X143316476Y-69729047D01*
X143364857Y-69680666D01*
X143461619Y-69632285D01*
X143655142Y-69632285D01*
X143751904Y-69680666D01*
X144622761Y-70261238D02*
X144526000Y-70309619D01*
X144332476Y-70309619D01*
X144235714Y-70261238D01*
X144187333Y-70212857D01*
X144138952Y-70116095D01*
X144138952Y-69825809D01*
X144187333Y-69729047D01*
X144235714Y-69680666D01*
X144332476Y-69632285D01*
X144526000Y-69632285D01*
X144622761Y-69680666D01*
D11*
G04 #@! TO.C,C1*
X123900000Y-82288748D02*
X123900000Y-82811252D01*
X122480000Y-82288748D02*
X122480000Y-82811252D01*
G04 #@! TO.C,J1*
X139640000Y-90230000D02*
X139640000Y-88900000D01*
X140970000Y-90230000D02*
X139640000Y-90230000D01*
X142240000Y-90230000D02*
X142240000Y-87570000D01*
X142240000Y-87570000D02*
X147380000Y-87570000D01*
X142240000Y-90230000D02*
X147380000Y-90230000D01*
X147380000Y-90230000D02*
X147380000Y-87570000D01*
G04 #@! TO.C,J2*
X147380000Y-68640000D02*
X147380000Y-65980000D01*
X142240000Y-68640000D02*
X147380000Y-68640000D01*
X142240000Y-65980000D02*
X147380000Y-65980000D01*
X142240000Y-68640000D02*
X142240000Y-65980000D01*
X140970000Y-68640000D02*
X139640000Y-68640000D01*
X139640000Y-68640000D02*
X139640000Y-67310000D01*
G04 #@! TO.C,J3*
X147380000Y-86420000D02*
X147380000Y-83760000D01*
X142240000Y-86420000D02*
X147380000Y-86420000D01*
X142240000Y-83760000D02*
X147380000Y-83760000D01*
X142240000Y-86420000D02*
X142240000Y-83760000D01*
X140970000Y-86420000D02*
X139640000Y-86420000D01*
X139640000Y-86420000D02*
X139640000Y-85090000D01*
G04 #@! TO.C,Q1*
X121218478Y-78171522D02*
G75*
G03X116780000Y-80010000I-1838478J-1838478D01*
G01*
X121218478Y-81848478D02*
G75*
G02X116780000Y-80010000I-1838478J1838478D01*
G01*
X121230000Y-81810000D02*
X121230000Y-78210000D01*
G04 #@! TO.C,Q2*
X120081522Y-74228478D02*
G75*
G03X124520000Y-72390000I1838478J1838478D01*
G01*
X120081522Y-70551522D02*
G75*
G02X124520000Y-72390000I1838478J-1838478D01*
G01*
X120070000Y-70590000D02*
X120070000Y-74190000D01*
G04 #@! TO.C,Q3*
X130120000Y-83080000D02*
X130120000Y-79480000D01*
X130108478Y-83118478D02*
G75*
G02X125670000Y-81280000I-1838478J1838478D01*
G01*
X130108478Y-79441522D02*
G75*
G03X125670000Y-81280000I-1838478J-1838478D01*
G01*
G04 #@! TO.C,Q4*
X126420000Y-70590000D02*
X126420000Y-74190000D01*
X126431522Y-70551522D02*
G75*
G02X130870000Y-72390000I1838478J-1838478D01*
G01*
X126431522Y-74228478D02*
G75*
G03X130870000Y-72390000I1838478J1838478D01*
G01*
G04 #@! TO.C,Q5*
X138998478Y-79441522D02*
G75*
G03X134560000Y-81280000I-1838478J-1838478D01*
G01*
X138998478Y-83118478D02*
G75*
G02X134560000Y-81280000I-1838478J1838478D01*
G01*
X139010000Y-83080000D02*
X139010000Y-79480000D01*
G04 #@! TO.C,Q6*
X134040000Y-70590000D02*
X134040000Y-74190000D01*
X134051522Y-70551522D02*
G75*
G02X138490000Y-72390000I1838478J-1838478D01*
G01*
X134051522Y-74228478D02*
G75*
G03X138490000Y-72390000I1838478J1838478D01*
G01*
G04 #@! TO.C,C1*
D12*
X122277142Y-79922666D02*
X122324761Y-79970285D01*
X122372380Y-80113142D01*
X122372380Y-80208380D01*
X122324761Y-80351238D01*
X122229523Y-80446476D01*
X122134285Y-80494095D01*
X121943809Y-80541714D01*
X121800952Y-80541714D01*
X121610476Y-80494095D01*
X121515238Y-80446476D01*
X121420000Y-80351238D01*
X121372380Y-80208380D01*
X121372380Y-80113142D01*
X121420000Y-79970285D01*
X121467619Y-79922666D01*
X122372380Y-78970285D02*
X122372380Y-79541714D01*
X122372380Y-79256000D02*
X121372380Y-79256000D01*
X121515238Y-79351238D01*
X121610476Y-79446476D01*
X121658095Y-79541714D01*
G04 #@! TO.C,J1*
X138092380Y-89233333D02*
X138806666Y-89233333D01*
X138949523Y-89280952D01*
X139044761Y-89376190D01*
X139092380Y-89519047D01*
X139092380Y-89614285D01*
X139092380Y-88233333D02*
X139092380Y-88804761D01*
X139092380Y-88519047D02*
X138092380Y-88519047D01*
X138235238Y-88614285D01*
X138330476Y-88709523D01*
X138378095Y-88804761D01*
G04 #@! TO.C,J2*
X138092380Y-67643333D02*
X138806666Y-67643333D01*
X138949523Y-67690952D01*
X139044761Y-67786190D01*
X139092380Y-67929047D01*
X139092380Y-68024285D01*
X138187619Y-67214761D02*
X138140000Y-67167142D01*
X138092380Y-67071904D01*
X138092380Y-66833809D01*
X138140000Y-66738571D01*
X138187619Y-66690952D01*
X138282857Y-66643333D01*
X138378095Y-66643333D01*
X138520952Y-66690952D01*
X139092380Y-67262380D01*
X139092380Y-66643333D01*
G04 #@! TO.C,J3*
X138092380Y-85423333D02*
X138806666Y-85423333D01*
X138949523Y-85470952D01*
X139044761Y-85566190D01*
X139092380Y-85709047D01*
X139092380Y-85804285D01*
X138092380Y-85042380D02*
X138092380Y-84423333D01*
X138473333Y-84756666D01*
X138473333Y-84613809D01*
X138520952Y-84518571D01*
X138568571Y-84470952D01*
X138663809Y-84423333D01*
X138901904Y-84423333D01*
X138997142Y-84470952D01*
X139044761Y-84518571D01*
X139092380Y-84613809D01*
X139092380Y-84899523D01*
X139044761Y-84994761D01*
X138997142Y-85042380D01*
G04 #@! TO.C,Q1*
X116367619Y-80105238D02*
X116320000Y-80200476D01*
X116224761Y-80295714D01*
X116081904Y-80438571D01*
X116034285Y-80533809D01*
X116034285Y-80629047D01*
X116272380Y-80581428D02*
X116224761Y-80676666D01*
X116129523Y-80771904D01*
X115939047Y-80819523D01*
X115605714Y-80819523D01*
X115415238Y-80771904D01*
X115320000Y-80676666D01*
X115272380Y-80581428D01*
X115272380Y-80390952D01*
X115320000Y-80295714D01*
X115415238Y-80200476D01*
X115605714Y-80152857D01*
X115939047Y-80152857D01*
X116129523Y-80200476D01*
X116224761Y-80295714D01*
X116272380Y-80390952D01*
X116272380Y-80581428D01*
X116272380Y-79200476D02*
X116272380Y-79771904D01*
X116272380Y-79486190D02*
X115272380Y-79486190D01*
X115415238Y-79581428D01*
X115510476Y-79676666D01*
X115558095Y-79771904D01*
G04 #@! TO.C,Q2*
X126027619Y-72485238D02*
X125980000Y-72580476D01*
X125884761Y-72675714D01*
X125741904Y-72818571D01*
X125694285Y-72913809D01*
X125694285Y-73009047D01*
X125932380Y-72961428D02*
X125884761Y-73056666D01*
X125789523Y-73151904D01*
X125599047Y-73199523D01*
X125265714Y-73199523D01*
X125075238Y-73151904D01*
X124980000Y-73056666D01*
X124932380Y-72961428D01*
X124932380Y-72770952D01*
X124980000Y-72675714D01*
X125075238Y-72580476D01*
X125265714Y-72532857D01*
X125599047Y-72532857D01*
X125789523Y-72580476D01*
X125884761Y-72675714D01*
X125932380Y-72770952D01*
X125932380Y-72961428D01*
X125027619Y-72151904D02*
X124980000Y-72104285D01*
X124932380Y-72009047D01*
X124932380Y-71770952D01*
X124980000Y-71675714D01*
X125027619Y-71628095D01*
X125122857Y-71580476D01*
X125218095Y-71580476D01*
X125360952Y-71628095D01*
X125932380Y-72199523D01*
X125932380Y-71580476D01*
G04 #@! TO.C,Q3*
X125257619Y-81375238D02*
X125210000Y-81470476D01*
X125114761Y-81565714D01*
X124971904Y-81708571D01*
X124924285Y-81803809D01*
X124924285Y-81899047D01*
X125162380Y-81851428D02*
X125114761Y-81946666D01*
X125019523Y-82041904D01*
X124829047Y-82089523D01*
X124495714Y-82089523D01*
X124305238Y-82041904D01*
X124210000Y-81946666D01*
X124162380Y-81851428D01*
X124162380Y-81660952D01*
X124210000Y-81565714D01*
X124305238Y-81470476D01*
X124495714Y-81422857D01*
X124829047Y-81422857D01*
X125019523Y-81470476D01*
X125114761Y-81565714D01*
X125162380Y-81660952D01*
X125162380Y-81851428D01*
X124162380Y-81089523D02*
X124162380Y-80470476D01*
X124543333Y-80803809D01*
X124543333Y-80660952D01*
X124590952Y-80565714D01*
X124638571Y-80518095D01*
X124733809Y-80470476D01*
X124971904Y-80470476D01*
X125067142Y-80518095D01*
X125114761Y-80565714D01*
X125162380Y-80660952D01*
X125162380Y-80946666D01*
X125114761Y-81041904D01*
X125067142Y-81089523D01*
G04 #@! TO.C,Q4*
X132377619Y-72485238D02*
X132330000Y-72580476D01*
X132234761Y-72675714D01*
X132091904Y-72818571D01*
X132044285Y-72913809D01*
X132044285Y-73009047D01*
X132282380Y-72961428D02*
X132234761Y-73056666D01*
X132139523Y-73151904D01*
X131949047Y-73199523D01*
X131615714Y-73199523D01*
X131425238Y-73151904D01*
X131330000Y-73056666D01*
X131282380Y-72961428D01*
X131282380Y-72770952D01*
X131330000Y-72675714D01*
X131425238Y-72580476D01*
X131615714Y-72532857D01*
X131949047Y-72532857D01*
X132139523Y-72580476D01*
X132234761Y-72675714D01*
X132282380Y-72770952D01*
X132282380Y-72961428D01*
X131615714Y-71675714D02*
X132282380Y-71675714D01*
X131234761Y-71913809D02*
X131949047Y-72151904D01*
X131949047Y-71532857D01*
G04 #@! TO.C,Q5*
X134147619Y-81375238D02*
X134100000Y-81470476D01*
X134004761Y-81565714D01*
X133861904Y-81708571D01*
X133814285Y-81803809D01*
X133814285Y-81899047D01*
X134052380Y-81851428D02*
X134004761Y-81946666D01*
X133909523Y-82041904D01*
X133719047Y-82089523D01*
X133385714Y-82089523D01*
X133195238Y-82041904D01*
X133100000Y-81946666D01*
X133052380Y-81851428D01*
X133052380Y-81660952D01*
X133100000Y-81565714D01*
X133195238Y-81470476D01*
X133385714Y-81422857D01*
X133719047Y-81422857D01*
X133909523Y-81470476D01*
X134004761Y-81565714D01*
X134052380Y-81660952D01*
X134052380Y-81851428D01*
X133052380Y-80518095D02*
X133052380Y-80994285D01*
X133528571Y-81041904D01*
X133480952Y-80994285D01*
X133433333Y-80899047D01*
X133433333Y-80660952D01*
X133480952Y-80565714D01*
X133528571Y-80518095D01*
X133623809Y-80470476D01*
X133861904Y-80470476D01*
X133957142Y-80518095D01*
X134004761Y-80565714D01*
X134052380Y-80660952D01*
X134052380Y-80899047D01*
X134004761Y-80994285D01*
X133957142Y-81041904D01*
G04 #@! TO.C,Q6*
X139997619Y-72485238D02*
X139950000Y-72580476D01*
X139854761Y-72675714D01*
X139711904Y-72818571D01*
X139664285Y-72913809D01*
X139664285Y-73009047D01*
X139902380Y-72961428D02*
X139854761Y-73056666D01*
X139759523Y-73151904D01*
X139569047Y-73199523D01*
X139235714Y-73199523D01*
X139045238Y-73151904D01*
X138950000Y-73056666D01*
X138902380Y-72961428D01*
X138902380Y-72770952D01*
X138950000Y-72675714D01*
X139045238Y-72580476D01*
X139235714Y-72532857D01*
X139569047Y-72532857D01*
X139759523Y-72580476D01*
X139854761Y-72675714D01*
X139902380Y-72770952D01*
X139902380Y-72961428D01*
X138902380Y-71675714D02*
X138902380Y-71866190D01*
X138950000Y-71961428D01*
X138997619Y-72009047D01*
X139140476Y-72104285D01*
X139330952Y-72151904D01*
X139711904Y-72151904D01*
X139807142Y-72104285D01*
X139854761Y-72056666D01*
X139902380Y-71961428D01*
X139902380Y-71770952D01*
X139854761Y-71675714D01*
X139807142Y-71628095D01*
X139711904Y-71580476D01*
X139473809Y-71580476D01*
X139378571Y-71628095D01*
X139330952Y-71675714D01*
X139283333Y-71770952D01*
X139283333Y-71961428D01*
X139330952Y-72056666D01*
X139378571Y-72104285D01*
X139473809Y-72151904D01*
G04 #@! TD*
M02*

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Current_Limit_Circuit/pcb/gerbers/pcb.drl View File

@ -0,0 +1,45 @@
M48
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;FORMAT={-:-/ absolute / inch / decimal}
FMAT,2
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T1C0.0130
T2C0.0295
T3C0.0394
%
G90
G05
T1
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T2
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BIN
Current_Limit_Circuit/pcb/layout.pdf View File


+ 83
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Current_Limit_Circuit/pcb/pcb-cache.lib View File

@ -0,0 +1,83 @@
EESchema-LIBRARY Version 2.4
#encoding utf-8
#
# Connector_Conn_01x03_Female
#
DEF Connector_Conn_01x03_Female J 0 40 Y N 1 F N
F0 "J" 0 200 50 H V C CNN
F1 "Connector_Conn_01x03_Female" 0 -200 50 H V C CNN
F2 "" 0 0 50 H I C CNN
F3 "" 0 0 50 H I C CNN
$FPLIST
Connector*:*_1x??_*
$ENDFPLIST
DRAW
A 0 -100 20 901 -901 1 1 6 N 0 -80 0 -120
A 0 0 20 901 -901 1 1 6 N 0 20 0 -20
A 0 100 20 901 -901 1 1 6 N 0 120 0 80
P 2 1 1 6 -50 -100 -20 -100 N
P 2 1 1 6 -50 0 -20 0 N
P 2 1 1 6 -50 100 -20 100 N
X Pin_1 1 -200 100 150 R 50 50 1 1 P
X Pin_2 2 -200 0 150 R 50 50 1 1 P
X Pin_3 3 -200 -100 150 R 50 50 1 1 P
ENDDRAW
ENDDEF
#
# Device_C_Small
#
DEF Device_C_Small C 0 10 N N 1 F N
F0 "C" 10 70 50 H V L CNN
F1 "Device_C_Small" 10 -80 50 H V L CNN
F2 "" 0 0 50 H I C CNN
F3 "" 0 0 50 H I C CNN
$FPLIST
C_*
$ENDFPLIST
DRAW
P 2 0 1 13 -60 -20 60 -20 N
P 2 0 1 12 -60 20 60 20 N
X ~ 1 0 100 80 D 50 50 1 1 P
X ~ 2 0 -100 80 U 50 50 1 1 P
ENDDRAW
ENDDEF
#
# Device_Q_NPN_EBC
#
DEF Device_Q_NPN_EBC Q 0 0 Y N 1 F N
F0 "Q" 200 50 50 H V L CNN
F1 "Device_Q_NPN_EBC" 200 -50 50 H V L CNN
F2 "" 200 100 50 H I C CNN
F3 "" 0 0 50 H I C CNN
DRAW
C 50 0 111 0 1 10 N
P 2 0 1 0 25 25 100 100 N
P 3 0 1 0 25 -25 100 -100 100 -100 N
P 3 0 1 20 25 75 25 -75 25 -75 N
P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
X E 1 100 -200 100 U 50 50 1 1 P
X B 2 -200 0 225 R 50 50 1 1 P
X C 3 100 200 100 D 50 50 1 1 P
ENDDRAW
ENDDEF
#
# Device_Q_PNP_EBC
#
DEF Device_Q_PNP_EBC Q 0 0 Y N 1 F N
F0 "Q" 200 50 50 H V L CNN
F1 "Device_Q_PNP_EBC" 200 -50 50 H V L CNN
F2 "" 200 100 50 H I C CNN
F3 "" 0 0 50 H I C CNN
DRAW
C 50 0 111 0 1 10 N
P 2 0 1 0 25 25 100 100 N
P 3 0 1 0 25 -25 100 -100 100 -100 N
P 3 0 1 20 25 75 25 -75 25 -75 N
P 5 0 1 0 90 -70 70 -90 50 -50 90 -70 90 -70 F
X E 1 100 -200 100 U 50 50 1 1 P
X B 2 -200 0 225 R 50 50 1 1 I
X C 3 100 200 100 D 50 50 1 1 P
ENDDRAW
ENDDEF
#
#End Library

+ 222
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Current_Limit_Circuit/pcb/pcb.bak View File

@ -0,0 +1,222 @@
EESchema Schematic File Version 4
EELAYER 26 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:Q_NPN_EBC Q3
U 1 1 5F4F20B3
P 3300 3900
F 0 "Q3" H 3525 4025 50 0000 L CNN
F 1 "Q_NPN_EBC" H 3491 3855 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 3500 4000 50 0001 C CNN
F 3 "~" H 3300 3900 50 0001 C CNN
1 3300 3900
-1 0 0 -1
$EndComp
$Comp
L Device:Q_NPN_EBC Q1
U 1 1 5F4F2141
P 2450 3650
F 0 "Q1" H 2700 3775 50 0000 L CNN
F 1 "Q_NPN_EBC" H 2640 3605 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 2650 3750 50 0001 C CNN
F 3 "~" H 2450 3650 50 0001 C CNN
1 2450 3650
-1 0 0 -1
$EndComp
$Comp
L Device:Q_PNP_EBC Q4
U 1 1 5F4F2221
P 3650 3150
F 0 "Q4" H 3875 3000 50 0000 L CNN
F 1 "Q_PNP_BCE" H 3841 3105 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 3850 3250 50 0001 C CNN
F 3 "~" H 3650 3150 50 0001 C CNN
1 3650 3150
1 0 0 1
$EndComp
$Comp
L Device:Q_PNP_EBC Q2
U 1 1 5F4F2286
P 3100 3150
F 0 "Q2" H 3325 3025 50 0000 L CNN
F 1 "Q_PNP_EBC" H 3291 3105 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 3300 3250 50 0001 C CNN
F 3 "~" H 3100 3150 50 0001 C CNN
1 3100 3150
1 0 0 1
$EndComp
$Comp
L Device:Q_PNP_EBC Q6
U 1 1 5F4F232A
P 4550 3150
F 0 "Q6" H 4775 3000 50 0000 L CNN
F 1 "Q_PNP_BCE" H 4741 3105 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 4750 3250 50 0001 C CNN
F 3 "~" H 4550 3150 50 0001 C CNN
1 4550 3150
1 0 0 1
$EndComp
$Comp
L Device:Q_NPN_EBC Q5
U 1 1 5F4F23D5
P 4000 3900
F 0 "Q5" H 4300 4075 50 0000 L CNN
F 1 "Q_NPN_EBC" H 4191 3855 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 4200 4000 50 0001 C CNN
F 3 "~" H 4000 3900 50 0001 C CNN
1 4000 3900
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C1
U 1 1 5F4F2484
P 2800 3900
F 0 "C1" H 2892 3946 50 0000 L CNN
F 1 "50pf" H 2892 3855 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 2800 3900 50 0001 C CNN
F 3 "~" H 2800 3900 50 0001 C CNN
1 2800 3900
1 0 0 -1
$EndComp
$Comp
L Connector:Conn_01x03_Female J2
U 1 1 5F4F27A8
P 4850 2600
F 0 "J2" H 4878 2580 50 0000 L CNN
F 1 "Conn_01x03_Female" H 4877 2535 50 0001 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 4850 2600 50 0001 C CNN
F 3 "~" H 4850 2600 50 0001 C CNN
1 4850 2600
1 0 0 -1
$EndComp
$Comp
L Connector:Conn_01x03_Female J1
U 1 1 5F4F28F4
P 4800 4600
F 0 "J1" H 4828 4580 50 0000 L CNN
F 1 "Conn_01x03_Female" H 4827 4535 50 0001 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 4800 4600 50 0001 C CNN
F 3 "~" H 4800 4600 50 0001 C CNN
1 4800 4600
1 0 0 -1
$EndComp
Wire Wire Line
4650 2500 4650 2600
Connection ~ 4650 2600
Wire Wire Line
4650 2600 4650 2700
Connection ~ 4650 2700
Wire Wire Line
4650 2700 4650 2950
Wire Wire Line
4350 3150 3450 3150
Wire Wire Line
3450 3150 2900 3150
Connection ~ 3450 3150
Wire Wire Line
2900 3150 2350 3150
Wire Wire Line
2350 3150 2350 3450
Connection ~ 2900 3150
Wire Wire Line
2800 3650 2800 3800
Wire Wire Line
2650 3650 2800 3650
Wire Wire Line
4650 2700 3750 2700
Wire Wire Line
3750 2700 3750 2950
Wire Wire Line
3750 2700 3200 2700
Wire Wire Line
3200 2700 3200 2950
Connection ~ 3750 2700
Wire Wire Line
2350 3850 2350 4300
Wire Wire Line
3750 3350 3750 3500
Wire Wire Line
3750 3900 3800 3900
Connection ~ 3750 3900
Wire Wire Line
4100 3700 4100 3500
Wire Wire Line
4100 3500 3750 3500
Connection ~ 3750 3500
Wire Wire Line
3750 3500 3750 3900
Wire Wire Line
3500 3900 3750 3900
Wire Wire Line
3200 3700 3200 3650
Wire Wire Line
3200 4100 3200 4500
Wire Wire Line
2800 4000 2800 4500
Wire Wire Line
2800 4500 3200 4500
Wire Wire Line
3200 4500 4600 4500
Connection ~ 3200 4500
Wire Wire Line
4600 4500 4600 4600
Connection ~ 4600 4500
Connection ~ 4600 4600
Wire Wire Line
4600 4600 4600 4700
Wire Wire Line
4650 3350 4650 4300
Wire Wire Line
2350 4300 4100 4300
Wire Wire Line
4650 4300 5000 4300
Connection ~ 4650 4300
Text Notes 5300 3300 0 50 ~ 0
snvs746d.pdf\nTexas Instruments \nLM334 Schematic\nPage 16\n\nResistor can be 0 TC\n(nichrome, or wire wound)\n\nTC of Vbe(which?) will effect circuit.
$Comp
L Connector:Conn_01x03_Female J3
U 1 1 5F4F59C1
P 5200 4200
F 0 "J3" H 5227 4226 50 0000 L CNN
F 1 "Conn_01x03_Female" H 5227 4135 50 0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 5200 4200 50 0001 C CNN
F 3 "~" H 5200 4200 50 0001 C CNN
1 5200 4200
1 0 0 -1
$EndComp
Wire Wire Line
5000 4100 5000 4200
Connection ~ 5000 4300
Connection ~ 5000 4200
Wire Wire Line
5000 4200 5000 4300
Text Notes 5325 4125 0 50 ~ 0
Resistor
Text Notes 4975 4575 0 50 ~ 0
Gnd\n
Text Notes 5000 2550 0 50 ~ 0
VCC
Wire Wire Line
4100 4100 4100 4300
Connection ~ 4100 4300
Wire Wire Line
4100 4300 4650 4300
Wire Wire Line
2800 3650 3200 3650
Connection ~ 2800 3650
Connection ~ 3200 3650
Wire Wire Line
3200 3650 3200 3350
$EndSCHEMATC

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Current_Limit_Circuit/pcb/pcb.kicad_pcb
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Current_Limit_Circuit/pcb/pcb.kicad_pcb-bak
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+ 172
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Current_Limit_Circuit/pcb/pcb.net View File

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(export (version D)
(design
(source /home/layoutdev/Desktop/code/documentation_general/Electronics_Projects_2020/Current_Limit_Circuit/pcb/pcb.sch)
(date "Wed 02 Sep 2020 12:54:33 AM EDT")
(tool "Eeschema 5.0.2+dfsg1-1~bpo9+1")
(sheet (number 1) (name /) (tstamps /)
(title_block
(title)
(company)
(rev)
(date)
(source pcb.sch)
(comment (number 1) (value ""))
(comment (number 2) (value ""))
(comment (number 3) (value ""))
(comment (number 4) (value "")))))
(components
(comp (ref Q3)
(value Q_NPN_EBC)
(footprint Package_TO_SOT_THT:TO-92)
(datasheet ~)
(libsource (lib Device) (part Q_NPN_EBC) (description "NPN transistor, emitter/base/collector"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F20B3))
(comp (ref Q1)
(value Q_NPN_EBC)
(footprint Package_TO_SOT_THT:TO-92)
(datasheet ~)
(libsource (lib Device) (part Q_NPN_EBC) (description "NPN transistor, emitter/base/collector"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F2141))
(comp (ref Q4)
(value Q_PNP_EBC)
(footprint Package_TO_SOT_THT:TO-92)
(datasheet ~)
(libsource (lib Device) (part Q_PNP_EBC) (description "PNP transistor, emitter/base/collector"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F2221))
(comp (ref Q2)
(value Q_PNP_EBC)
(footprint Package_TO_SOT_THT:TO-92)
(datasheet ~)
(libsource (lib Device) (part Q_PNP_EBC) (description "PNP transistor, emitter/base/collector"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F2286))
(comp (ref Q6)
(value Q_PNP_EBC)
(footprint Package_TO_SOT_THT:TO-92)
(datasheet ~)
(libsource (lib Device) (part Q_PNP_EBC) (description "PNP transistor, emitter/base/collector"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F232A))
(comp (ref Q5)
(value Q_NPN_EBC)
(footprint Package_TO_SOT_THT:TO-92)
(datasheet ~)
(libsource (lib Device) (part Q_NPN_EBC) (description "NPN transistor, emitter/base/collector"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F23D5))
(comp (ref C1)
(value 50pf)
(footprint Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder)
(datasheet ~)
(libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F2484))
(comp (ref J2)
(value Conn_01x03_Female)
(footprint Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical)
(datasheet ~)
(libsource (lib Connector) (part Conn_01x03_Female) (description "Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/)"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F27A8))
(comp (ref J1)
(value Conn_01x03_Female)
(footprint Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical)
(datasheet ~)
(libsource (lib Connector) (part Conn_01x03_Female) (description "Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/)"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F28F4))
(comp (ref J3)
(value Conn_01x03_Female)
(footprint Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical)
(datasheet ~)
(libsource (lib Connector) (part Conn_01x03_Female) (description "Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/)"))
(sheetpath (names /) (tstamps /))
(tstamp 5F4F59C1)))
(libparts
(libpart (lib Connector) (part Conn_01x03_Female)
(description "Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/)")
(docs ~)
(footprints
(fp Connector*:*_1x??_*))
(fields
(field (name Reference) J)
(field (name Value) Conn_01x03_Female))
(pins
(pin (num 1) (name Pin_1) (type passive))
(pin (num 2) (name Pin_2) (type passive))
(pin (num 3) (name Pin_3) (type passive))))
(libpart (lib Device) (part C_Small)
(description "Unpolarized capacitor, small symbol")
(docs ~)
(footprints
(fp C_*))
(fields
(field (name Reference) C)
(field (name Value) C_Small))
(pins
(pin (num 1) (name ~) (type passive))
(pin (num 2) (name ~) (type passive))))
(libpart (lib Device) (part Q_NPN_EBC)
(description "NPN transistor, emitter/base/collector")
(docs ~)
(fields
(field (name Reference) Q)
(field (name Value) Q_NPN_EBC))
(pins
(pin (num 1) (name E) (type passive))
(pin (num 2) (name B) (type passive))
(pin (num 3) (name C) (type passive))))
(libpart (lib Device) (part Q_PNP_EBC)
(description "PNP transistor, emitter/base/collector")
(docs ~)
(fields
(field (name Reference) Q)
(field (name Value) Q_PNP_EBC))
(pins
(pin (num 1) (name E) (type passive))
(pin (num 2) (name B) (type input))
(pin (num 3) (name C) (type passive)))))
(libraries
(library (logical Connector)
(uri /usr/share/kicad/library/Connector.lib))
(library (logical Device)
(uri /usr/share/kicad/library/Device.lib)))
(nets
(net (code 1) (name "Net-(C1-Pad2)")
(node (ref J1) (pin 1))
(node (ref J1) (pin 2))
(node (ref J1) (pin 3))
(node (ref Q3) (pin 1))
(node (ref C1) (pin 2)))
(net (code 2) (name "Net-(Q3-Pad2)")
(node (ref Q3) (pin 2))
(node (ref Q4) (pin 3))
(node (ref Q5) (pin 2))
(node (ref Q5) (pin 3)))
(net (code 3) (name "Net-(J3-Pad1)")
(node (ref Q1) (pin 1))
(node (ref Q6) (pin 3))
(node (ref Q5) (pin 1))
(node (ref J3) (pin 1))
(node (ref J3) (pin 2))
(node (ref J3) (pin 3)))
(net (code 4) (name "Net-(J2-Pad1)")
(node (ref J2) (pin 2))
(node (ref J2) (pin 3))
(node (ref Q4) (pin 1))
(node (ref Q2) (pin 1))
(node (ref J2) (pin 1))
(node (ref Q6) (pin 1)))
(net (code 5) (name "Net-(Q1-Pad3)")
(node (ref Q2) (pin 2))
(node (ref Q4) (pin 2))
(node (ref Q6) (pin 2))
(node (ref Q1) (pin 3)))
(net (code 6) (name "Net-(C1-Pad1)")
(node (ref C1) (pin 1))
(node (ref Q2) (pin 3))
(node (ref Q3) (pin 3))
(node (ref Q1) (pin 2)))))

+ 41
- 0
Current_Limit_Circuit/pcb/pcb.pro View File

@ -0,0 +1,41 @@
update=Wed 02 Sep 2020 12:48:01 AM EDT
version=1
last_client=kicad
[cvpcb]
version=1
NetIExt=net
[pcbnew]
version=1
PageLayoutDescrFile=
LastNetListRead=
PadDrill=0.600000000000
PadDrillOvalY=0.600000000000
PadSizeH=1.500000000000
PadSizeV=1.500000000000
PcbTextSizeV=1.016000000000
PcbTextSizeH=1.016000000000
PcbTextThickness=0.152400000000
ModuleTextSizeV=1.016000000000
ModuleTextSizeH=1.016000000000
ModuleTextSizeThickness=0.152400000000
SolderMaskClearance=0.003000000000
SolderMaskMinWidth=0.004000000000
DrawSegmentWidth=0.152400000000
BoardOutlineThickness=0.152400000000
ModuleOutlineThickness=0.152400000000
[eeschema]
version=1
LibDir=
[eeschema/libraries]
[general]
version=1
[schematic_editor]
version=1
PageLayoutDescrFile=
PlotDirectoryName=
SubpartIdSeparator=0
SubpartFirstId=65
NetFmtName=Pcbnew
SpiceAjustPassiveValues=0
LabSize=50
ERC_TestSimilarLabels=1

+ 222
- 0
Current_Limit_Circuit/pcb/pcb.sch View File

@ -0,0 +1,222 @@
EESchema Schematic File Version 4
EELAYER 26 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:Q_NPN_EBC Q3
U 1 1 5F4F20B3
P 3300 3900
F 0 "Q3" H 3525 4025 50 0000 L CNN
F 1 "Q_NPN_EBC" H 3491 3855 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 3500 4000 50 0001 C CNN
F 3 "~" H 3300 3900 50 0001 C CNN
1 3300 3900
-1 0 0 -1
$EndComp
$Comp
L Device:Q_NPN_EBC Q1
U 1 1 5F4F2141
P 2450 3650
F 0 "Q1" H 2700 3775 50 0000 L CNN
F 1 "Q_NPN_EBC" H 2640 3605 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 2650 3750 50 0001 C CNN
F 3 "~" H 2450 3650 50 0001 C CNN
1 2450 3650
-1 0 0 -1
$EndComp
$Comp
L Device:Q_PNP_EBC Q4
U 1 1 5F4F2221
P 3650 3150
F 0 "Q4" H 3875 3000 50 0000 L CNN
F 1 "Q_PNP_EBC" H 3841 3105 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 3850 3250 50 0001 C CNN
F 3 "~" H 3650 3150 50 0001 C CNN
1 3650 3150
1 0 0 1
$EndComp
$Comp
L Device:Q_PNP_EBC Q2
U 1 1 5F4F2286
P 3100 3150
F 0 "Q2" H 3325 3025 50 0000 L CNN
F 1 "Q_PNP_EBC" H 3291 3105 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 3300 3250 50 0001 C CNN
F 3 "~" H 3100 3150 50 0001 C CNN
1 3100 3150
1 0 0 1
$EndComp
$Comp
L Device:Q_PNP_EBC Q6
U 1 1 5F4F232A
P 4550 3150
F 0 "Q6" H 4775 3000 50 0000 L CNN
F 1 "Q_PNP_EBC" H 4741 3105 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 4750 3250 50 0001 C CNN
F 3 "~" H 4550 3150 50 0001 C CNN
1 4550 3150
1 0 0 1
$EndComp
$Comp
L Device:Q_NPN_EBC Q5
U 1 1 5F4F23D5
P 4000 3900
F 0 "Q5" H 4300 4075 50 0000 L CNN
F 1 "Q_NPN_EBC" H 4191 3855 50 0001 L CNN
F 2 "Package_TO_SOT_THT:TO-92" H 4200 4000 50 0001 C CNN
F 3 "~" H 4000 3900 50 0001 C CNN
1 4000 3900
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C1
U 1 1 5F4F2484
P 2800 3900
F 0 "C1" H 2892 3946 50 0000 L CNN
F 1 "50pf" H 2892 3855 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 2800 3900 50 0001 C CNN
F 3 "~" H 2800 3900 50 0001 C CNN
1 2800 3900
1 0 0 -1
$EndComp
$Comp
L Connector:Conn_01x03_Female J2
U 1 1 5F4F27A8
P 4850 2600
F 0 "J2" H 4878 2580 50 0000 L CNN
F 1 "Conn_01x03_Female" H 4877 2535 50 0001 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 4850 2600 50 0001 C CNN
F 3 "~" H 4850 2600 50 0001 C CNN
1 4850 2600
1 0 0 -1
$EndComp
$Comp
L Connector:Conn_01x03_Female J1
U 1 1 5F4F28F4
P 4800 4600
F 0 "J1" H 4828 4580 50 0000 L CNN
F 1 "Conn_01x03_Female" H 4827 4535 50 0001 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 4800 4600 50 0001 C CNN
F 3 "~" H 4800 4600 50 0001 C CNN
1 4800 4600
1 0 0 -1
$EndComp
Wire Wire Line
4650 2500 4650 2600
Connection ~ 4650 2600
Wire Wire Line
4650 2600 4650 2700
Connection ~ 4650 2700
Wire Wire Line
4650 2700 4650 2950
Wire Wire Line
4350 3150 3450 3150
Wire Wire Line
3450 3150 2900 3150
Connection ~ 3450 3150
Wire Wire Line
2900 3150 2350 3150
Wire Wire Line
2350 3150 2350 3450
Connection ~ 2900 3150
Wire Wire Line
2800 3650 2800 3800
Wire Wire Line
2650 3650 2800 3650
Wire Wire Line
4650 2700 3750 2700
Wire Wire Line
3750 2700 3750 2950
Wire Wire Line
3750 2700 3200 2700
Wire Wire Line
3200 2700 3200 2950
Connection ~ 3750 2700
Wire Wire Line
2350 3850 2350 4300
Wire Wire Line
3750 3350 3750 3500
Wire Wire Line
3750 3900 3800 3900
Connection ~ 3750 3900
Wire Wire Line
4100 3700 4100 3500
Wire Wire Line
4100 3500 3750 3500
Connection ~ 3750 3500
Wire Wire Line
3750 3500 3750 3900
Wire Wire Line
3500 3900 3750 3900
Wire Wire Line
3200 3700 3200 3650
Wire Wire Line
3200 4100 3200 4500
Wire Wire Line
2800 4000 2800 4500
Wire Wire Line
2800 4500 3200 4500
Wire Wire Line
3200 4500 4600 4500
Connection ~ 3200 4500
Wire Wire Line
4600 4500 4600 4600
Connection ~ 4600 4500
Connection ~ 4600 4600
Wire Wire Line
4600 4600 4600 4700
Wire Wire Line
4650 3350 4650 4300
Wire Wire Line
2350 4300 4100 4300
Wire Wire Line
4650 4300 5000 4300
Connection ~ 4650 4300
Text Notes 5300 3300 0 50 ~ 0
snvs746d.pdf\nTexas Instruments \nLM334 Schematic\nPage 16\n\nResistor can be 0 TC\n(nichrome, or wire wound)\n\nTC of Vbe(which?) will effect circuit.
$Comp
L Connector:Conn_01x03_Female J3
U 1 1 5F4F59C1
P 5200 4200
F 0 "J3" H 5227 4226 50 0000 L CNN
F 1 "Conn_01x03_Female" H 5227 4135 50 0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 5200 4200 50 0001 C CNN
F 3 "~" H 5200 4200 50 0001 C CNN
1 5200 4200
1 0 0 -1
$EndComp
Wire Wire Line
5000 4100 5000 4200
Connection ~ 5000 4300
Connection ~ 5000 4200
Wire Wire Line
5000 4200 5000 4300
Text Notes 5325 4125 0 50 ~ 0
Resistor
Text Notes 4975 4575 0 50 ~ 0
Gnd\n
Text Notes 5000 2550 0 50 ~ 0
VCC
Wire Wire Line
4100 4100 4100 4300
Connection ~ 4100 4300
Wire Wire Line
4100 4300 4650 4300
Wire Wire Line
2800 3650 3200 3650
Connection ~ 2800 3650
Connection ~ 3200 3650
Wire Wire Line
3200 3650 3200 3350
$EndSCHEMATC

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Current_Limit_Circuit/resources/snvs746d.pdf View File


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