diff --git a/cad/pcb_holder_crossbar.stl b/cad/output/pcb_holder_crossbar.stl
similarity index 100%
rename from cad/pcb_holder_crossbar.stl
rename to cad/output/pcb_holder_crossbar.stl
diff --git a/cad/pcb_holder_crossbar.svg b/cad/output/pcb_holder_crossbar.svg
similarity index 100%
rename from cad/pcb_holder_crossbar.svg
rename to cad/output/pcb_holder_crossbar.svg
diff --git a/cad/pcb_holder_floor_prot.stl b/cad/output/pcb_holder_floor_prot.stl
similarity index 100%
rename from cad/pcb_holder_floor_prot.stl
rename to cad/output/pcb_holder_floor_prot.stl
diff --git a/cad/pcb_holder_floor_prot.svg b/cad/output/pcb_holder_floor_prot.svg
similarity index 100%
rename from cad/pcb_holder_floor_prot.svg
rename to cad/output/pcb_holder_floor_prot.svg
diff --git a/cad/pcb_holder_holder.svg b/cad/output/pcb_holder_holder.svg
similarity index 100%
rename from cad/pcb_holder_holder.svg
rename to cad/output/pcb_holder_holder.svg
diff --git a/cad/pcb_holder_holder_l.stl b/cad/output/pcb_holder_holder_l.stl
similarity index 100%
rename from cad/pcb_holder_holder_l.stl
rename to cad/output/pcb_holder_holder_l.stl
diff --git a/cad/pcb_holder_holder_r.stl b/cad/output/pcb_holder_holder_r.stl
similarity index 100%
rename from cad/pcb_holder_holder_r.stl
rename to cad/output/pcb_holder_holder_r.stl
diff --git a/cad/pcb_holder_lid.stl b/cad/output/pcb_holder_lid.stl
similarity index 100%
rename from cad/pcb_holder_lid.stl
rename to cad/output/pcb_holder_lid.stl
diff --git a/cad/pcb_holder_lid.svg b/cad/output/pcb_holder_lid.svg
similarity index 100%
rename from cad/pcb_holder_lid.svg
rename to cad/output/pcb_holder_lid.svg
diff --git a/cad/test.step b/cad/test.step
deleted file mode 100644
index 4e8893a..0000000
--- a/cad/test.step
+++ /dev/null
@@ -1,37 +0,0 @@
-ISO-10303-21;
-HEADER;
-FILE_DESCRIPTION(('FreeCAD Model'),'2;1');
-FILE_NAME('/home/maximilian/UppSense/cad/etching_machine/v2.0/test.step'
-  ,'2017-06-17T18:55:45',('Author'),(''),
-  'Open CASCADE STEP processor 6.8','FreeCAD','Unknown');
-FILE_SCHEMA(('AUTOMOTIVE_DESIGN_CC2 { 1 2 10303 214 -1 1 5 4 }'));
-ENDSEC;
-DATA;
-#1 = APPLICATION_PROTOCOL_DEFINITION('committee draft',
-  'automotive_design',1997,#2);
-#2 = APPLICATION_CONTEXT(
-  'core data for automotive mechanical design processes');
-#3 = SHAPE_DEFINITION_REPRESENTATION(#4,#10);
-#4 = PRODUCT_DEFINITION_SHAPE('','',#5);
-#5 = PRODUCT_DEFINITION('design','',#6,#9);
-#6 = PRODUCT_DEFINITION_FORMATION('','',#7);
-#7 = PRODUCT('ASSEMBLY','ASSEMBLY','',(#8));
-#8 = MECHANICAL_CONTEXT('',#2,'mechanical');
-#9 = PRODUCT_DEFINITION_CONTEXT('part definition',#2,'design');
-#10 = SHAPE_REPRESENTATION('',(#11),#15);
-#11 = AXIS2_PLACEMENT_3D('',#12,#13,#14);
-#12 = CARTESIAN_POINT('',(0.,0.,0.));
-#13 = DIRECTION('',(0.,0.,1.));
-#14 = DIRECTION('',(1.,0.,-0.));
-#15 = ( GEOMETRIC_REPRESENTATION_CONTEXT(3) 
-GLOBAL_UNCERTAINTY_ASSIGNED_CONTEXT((#19)) GLOBAL_UNIT_ASSIGNED_CONTEXT(
-(#16,#17,#18)) REPRESENTATION_CONTEXT('Context #1',
-  '3D Context with UNIT and UNCERTAINTY') );
-#16 = ( LENGTH_UNIT() NAMED_UNIT(*) SI_UNIT(.MILLI.,.METRE.) );
-#17 = ( NAMED_UNIT(*) PLANE_ANGLE_UNIT() SI_UNIT($,.RADIAN.) );
-#18 = ( NAMED_UNIT(*) SI_UNIT($,.STERADIAN.) SOLID_ANGLE_UNIT() );
-#19 = UNCERTAINTY_MEASURE_WITH_UNIT(LENGTH_MEASURE(1.E-07),#16,
-  'distance_accuracy_value','confusion accuracy');
-#20 = PRODUCT_TYPE('part',$,(#7));
-ENDSEC;
-END-ISO-10303-21;
diff --git a/electronics/led_driver-cache.lib b/electronics/led_driver-cache.lib
new file mode 100644
index 0000000..d87d98f
--- /dev/null
+++ b/electronics/led_driver-cache.lib
@@ -0,0 +1,79 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# LM324DT
+#
+DEF LM324DT U 0 40 Y N 1 F N
+F0 "U" 450 -800 60 H V C CNN
+F1 "LM324DT" -350 -800 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+T 0 -300 -250 60 0 0 0 + Normal 0 C C
+T 0 -300 250 60 0 0 0 + Normal 0 C C
+T 0 300 -250 60 0 0 0 + Normal 0 C C
+T 0 300 250 60 0 0 0 + Normal 0 C C
+T 0 -300 -350 60 0 0 0 - Normal 0 C C
+T 0 -300 350 60 0 0 0 - Normal 0 C C
+T 0 300 -350 60 0 0 0 - Normal 0 C C
+T 0 300 350 60 0 0 0 - Normal 0 C C
+T 0 -350 0 60 0 0 0 Vcc+ Normal 0 C C
+T 0 350 0 60 0 0 0 Vcc- Normal 0 C C
+S -500 700 500 -700 1 0 0 N
+P 2 0 1 0 -500 -400 -350 -400 N
+P 2 0 1 0 -500 -200 -350 -200 N
+P 2 0 1 0 -500 200 -350 200 N
+P 2 0 1 0 -500 400 -350 400 N
+P 2 0 1 0 350 -400 500 -400 N
+P 2 0 1 0 350 -200 500 -200 N
+P 2 0 1 0 350 200 500 200 N
+P 2 0 1 0 350 400 500 400 N
+P 4 0 1 0 -350 -150 -350 -450 -100 -300 -350 -150 N
+P 4 0 1 0 -350 450 -350 150 -100 300 -350 450 N
+P 4 0 1 0 -100 -300 -50 -300 -50 -600 -500 -600 N
+P 4 0 1 0 -100 300 -50 300 -50 600 -500 600 N
+P 4 0 1 0 100 -300 50 -300 50 -600 500 -600 N
+P 4 0 1 0 100 300 50 300 50 600 500 600 N
+P 4 0 1 0 350 -150 350 -450 100 -300 350 -150 N
+P 4 0 1 0 350 450 350 150 100 300 350 450 N
+X O_1 1 -700 600 200 R 50 50 1 1 O
+X N_1 2 -700 400 200 R 50 50 1 1 I
+X P_1 3 -700 200 200 R 50 50 1 1 I
+X Vcc+ 4 -700 0 200 R 50 50 1 1 W
+X P_2 5 -700 -200 200 R 50 50 1 1 I
+X N_2 6 -700 -400 200 R 50 50 1 1 I
+X O_2 7 -700 -600 200 R 50 50 1 1 O
+X O_3 8 700 -600 200 L 50 50 1 1 O
+X N_3 9 700 -400 200 L 50 50 1 1 I
+X P_3 10 700 -200 200 L 50 50 1 1 I
+X Vcc- 11 700 0 200 L 50 50 1 1 W
+X P_4 12 700 200 200 L 50 50 1 1 I
+X N_4 13 700 400 200 L 50 50 1 1 I
+X O_4 14 700 600 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# MMBT3904
+#
+DEF MMBT3904 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MMBT3904" 200 0 50 H V L CNN
+F2 "SOT-23" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-23*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 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 B 1 -200 0 200 R 50 50 1 1 I
+X E 2 100 -200 100 U 50 50 1 1 P
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/electronics/_saved_led_driver.sch b/electronics/led_driver.bak
similarity index 66%
rename from electronics/_saved_led_driver.sch
rename to electronics/led_driver.bak
index 3c9e885..17c0c82 100644
--- a/electronics/_saved_led_driver.sch
+++ b/electronics/led_driver.bak
@@ -44,14 +44,15 @@ Comment3 ""
 Comment4 ""
 $EndDescr
 $Comp
-L LM324QT U?
-U 1 1 594658A6
-P 5500 3500
-F 0 "U?" H 5950 2700 60  0000 C CNN
-F 1 "LM324QT" H 5150 2700 60  0000 C CNN
-F 2 "" H 5500 3500 60  0000 C CNN
-F 3 "" H 5500 3500 60  0000 C CNN
-	1    5500 3500
+L LM324DT U?
+U 1 1 59466506
+P 5600 3025
+F 0 "U?" H 6050 2225 60  0000 C CNN
+F 1 "LM324DT" H 5250 2225 60  0000 C CNN
+F 2 "SMD_Packages:SOIC-14_N" H 5600 3025 60  0001 C CNN
+F 3 "http://www.farnell.com/datasheets/1834360.pdf" H 5600 3025 60  0001 C CNN
+F 4 "2382609" H 5600 3025 60  0001 C CNN "Franell"
+	1    5600 3025
 	1    0    0    -1  
 $EndComp
 $EndSCHEMATC
diff --git a/electronics/led_driver.sch b/electronics/led_driver.sch
index 8b829fb..d45ccc1 100644
--- a/electronics/led_driver.sch
+++ b/electronics/led_driver.sch
@@ -1 +1,69 @@
 EESchema Schematic File Version 2
+LIBS:power
+LIBS:device
+LIBS:transistors
+LIBS:conn
+LIBS:linear
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:valves
+LIBS:myOpAmps
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L LM324DT U?
+U 1 1 59466506
+P 5600 3025
+F 0 "U?" H 6050 2225 60  0000 C CNN
+F 1 "LM324DT" H 5250 2225 60  0000 C CNN
+F 2 "SMD_Packages:SOIC-14_N" H 5600 3025 60  0001 C CNN
+F 3 "http://www.farnell.com/datasheets/1834360.pdf" H 5600 3025 60  0001 C CNN
+F 4 "2382609" H 5600 3025 60  0001 C CNN "Franell"
+	1    5600 3025
+	1    0    0    -1  
+$EndComp
+$Comp
+L MMBT3904 Q?
+U 1 1 59466917
+P 7100 3575
+F 0 "Q?" H 7300 3650 50  0000 L CNN
+F 1 "MMBT3904" H 7300 3575 50  0000 L CNN
+F 2 "SOT-23" H 7300 3500 50  0000 L CIN
+F 3 "" H 7100 3575 50  0000 L CNN
+	1    7100 3575
+	1    0    0    -1  
+$EndComp
+$EndSCHEMATC
diff --git a/electronics/schematicLibs/myOpAmps.bak b/electronics/schematicLibs/myOpAmps.bak
new file mode 100644
index 0000000..245a2fd
--- /dev/null
+++ b/electronics/schematicLibs/myOpAmps.bak
@@ -0,0 +1,58 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# LM324QT
+#
+DEF LM324QT U 0 40 Y N 1 F N
+F0 "U" 450 -800 60 H V C CNN
+F1 "LM324QT" -350 -800 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+T 0 -300 -250 60 0 0 0 + Normal 0 C C
+T 0 -300 250 60 0 0 0 + Normal 0 C C
+T 0 300 -250 60 0 0 0 + Normal 0 C C
+T 0 300 250 60 0 0 0 + Normal 0 C C
+T 0 -300 -350 60 0 0 0 - Normal 0 C C
+T 0 -300 350 60 0 0 0 - Normal 0 C C
+T 0 300 -350 60 0 0 0 - Normal 0 C C
+T 0 300 350 60 0 0 0 - Normal 0 C C
+T 0 -350 0 60 0 0 0 Vcc+ Normal 0 C C
+T 0 350 0 60 0 0 0 Vcc- Normal 0 C C
+S -500 700 500 -700 1 0 0 N
+P 2 0 1 0 -500 -400 -350 -400 N
+P 2 0 1 0 -500 -200 -350 -200 N
+P 2 0 1 0 -500 200 -350 200 N
+P 2 0 1 0 -500 400 -350 400 N
+P 2 0 1 0 350 -400 500 -400 N
+P 2 0 1 0 350 -200 500 -200 N
+P 2 0 1 0 350 200 500 200 N
+P 2 0 1 0 350 400 500 400 N
+P 4 0 1 0 -350 -150 -350 -450 -100 -300 -350 -150 N
+P 4 0 1 0 -350 450 -350 150 -100 300 -350 450 N
+P 4 0 1 0 -100 -300 -50 -300 -50 -600 -500 -600 N
+P 4 0 1 0 -100 300 -50 300 -50 600 -500 600 N
+P 4 0 1 0 100 -300 50 -300 50 -600 500 -600 N
+P 4 0 1 0 100 300 50 300 50 600 500 600 N
+P 4 0 1 0 350 -150 350 -450 100 -300 350 -150 N
+P 4 0 1 0 350 450 350 150 100 300 350 450 N
+X P_1 1 -700 200 200 R 50 50 1 1 I
+X Vcc+ 2 -700 0 200 R 50 50 1 1 W
+X NC 3 0 -900 200 U 50 50 1 1 N
+X P_2 4 -700 -200 200 R 50 50 1 1 I
+X N_2 5 -700 -400 200 R 50 50 1 1 I
+X O_2 6 -700 -600 200 R 50 50 1 1 O
+X O_3 7 700 -600 200 L 50 50 1 1 O
+X N_3 8 700 -400 200 L 50 50 1 1 I
+X P_3 9 700 -200 200 L 50 50 1 1 I
+X NC 10 150 -900 200 U 50 50 1 1 N N
+X Vcc- 11 700 0 200 L 50 50 1 1 W
+X P_4 12 700 200 200 L 50 50 1 1 I
+X N_4 13 700 400 200 L 50 50 1 1 I
+X O_4 14 700 600 200 L 50 50 1 1 O
+X O_1 15 -700 600 200 R 50 50 1 1 O
+X N_1 16 -700 400 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/electronics/schematicLibs/myOpAmps.dcm b/electronics/schematicLibs/myOpAmps.dcm
new file mode 100644
index 0000000..6147fca
--- /dev/null
+++ b/electronics/schematicLibs/myOpAmps.dcm
@@ -0,0 +1,7 @@
+EESchema-DOCLIB  Version 2.0
+#
+$CMP LM324DT
+D Low power quad operational amplifier.
+$ENDCMP
+#
+#End Doc Library
diff --git a/electronics/schematicLibs/myOpAmps.lib b/electronics/schematicLibs/myOpAmps.lib
index 245a2fd..9f34f03 100644
--- a/electronics/schematicLibs/myOpAmps.lib
+++ b/electronics/schematicLibs/myOpAmps.lib
@@ -1,6 +1,58 @@
 EESchema-LIBRARY Version 2.3
 #encoding utf-8
 #
+# LM324DT
+#
+DEF LM324DT U 0 40 Y N 1 F N
+F0 "U" 450 -800 60 H V C CNN
+F1 "LM324DT" -350 -800 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+T 0 -300 -250 60 0 0 0 + Normal 0 C C
+T 0 -300 250 60 0 0 0 + Normal 0 C C
+T 0 300 -250 60 0 0 0 + Normal 0 C C
+T 0 300 250 60 0 0 0 + Normal 0 C C
+T 0 -300 -350 60 0 0 0 - Normal 0 C C
+T 0 -300 350 60 0 0 0 - Normal 0 C C
+T 0 300 -350 60 0 0 0 - Normal 0 C C
+T 0 300 350 60 0 0 0 - Normal 0 C C
+T 0 -350 0 60 0 0 0 Vcc+ Normal 0 C C
+T 0 350 0 60 0 0 0 Vcc- Normal 0 C C
+S -500 700 500 -700 1 0 0 N
+P 2 0 1 0 -500 -400 -350 -400 N
+P 2 0 1 0 -500 -200 -350 -200 N
+P 2 0 1 0 -500 200 -350 200 N
+P 2 0 1 0 -500 400 -350 400 N
+P 2 0 1 0 350 -400 500 -400 N
+P 2 0 1 0 350 -200 500 -200 N
+P 2 0 1 0 350 200 500 200 N
+P 2 0 1 0 350 400 500 400 N
+P 4 0 1 0 -350 -150 -350 -450 -100 -300 -350 -150 N
+P 4 0 1 0 -350 450 -350 150 -100 300 -350 450 N
+P 4 0 1 0 -100 -300 -50 -300 -50 -600 -500 -600 N
+P 4 0 1 0 -100 300 -50 300 -50 600 -500 600 N
+P 4 0 1 0 100 -300 50 -300 50 -600 500 -600 N
+P 4 0 1 0 100 300 50 300 50 600 500 600 N
+P 4 0 1 0 350 -150 350 -450 100 -300 350 -150 N
+P 4 0 1 0 350 450 350 150 100 300 350 450 N
+X O_1 1 -700 600 200 R 50 50 1 1 O
+X N_1 2 -700 400 200 R 50 50 1 1 I
+X P_1 3 -700 200 200 R 50 50 1 1 I
+X Vcc+ 4 -700 0 200 R 50 50 1 1 W
+X P_2 5 -700 -200 200 R 50 50 1 1 I
+X N_2 6 -700 -400 200 R 50 50 1 1 I
+X O_2 7 -700 -600 200 R 50 50 1 1 O
+X O_3 8 700 -600 200 L 50 50 1 1 O
+X N_3 9 700 -400 200 L 50 50 1 1 I
+X P_3 10 700 -200 200 L 50 50 1 1 I
+X Vcc- 11 700 0 200 L 50 50 1 1 W
+X P_4 12 700 200 200 L 50 50 1 1 I
+X N_4 13 700 400 200 L 50 50 1 1 I
+X O_4 14 700 600 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
 # LM324QT
 #
 DEF LM324QT U 0 40 Y N 1 F N
diff --git a/ltspice/uv_led_driver/LM324.txt b/ltspice/uv_led_driver/LM324.txt
new file mode 100644
index 0000000..f66fde2
--- /dev/null
+++ b/ltspice/uv_led_driver/LM324.txt
@@ -0,0 +1,45 @@
+* LM324 OPERATIONAL AMPLIFIER "MACROMODEL" SUBCIRCUIT
+* CREATED USING PARTS RELEASE 4.01 ON 09/08/89 AT 10:54
+* (REV N/A)      SUPPLY VOLTAGE: 5V
+* CONNECTIONS:   NON-INVERTING INPUT
+*                | INVERTING INPUT
+*                | | POSITIVE POWER SUPPLY
+*                | | | NEGATIVE POWER SUPPLY
+*                | | | | OUTPUT
+*                | | | | |
+.SUBCKT LM324    1 2 3 4 5
+*
+  C1   11 12 5.544E-12
+  C2    6  7 20.00E-12
+  DC    5 53 DX
+  DE   54  5 DX
+  DLP  90 91 DX
+  DLN  92 90 DX
+  DP    4  3 DX
+  EGND 99  0 POLY(2) (3,0) (4,0) 0 .5 .5
+  FB    7 99 POLY(5) VB VC VE VLP VLN 0 15.91E6 -20E6 20E6 20E6 -20E6
+  GA    6  0 11 12 125.7E-6
+  GCM   0  6 10 99 7.067E-9
+  IEE   3 10 DC 10.04E-6
+  HLIM 90  0 VLIM 1K
+  Q1   11  2 13 QX
+  Q2   12  1 14 QX
+  R2    6  9 100.0E3
+  RC1   4 11 7.957E3
+  RC2   4 12 7.957E3
+  RE1  13 10 2.773E3
+  RE2  14 10 2.773E3
+  REE  10 99 19.92E6
+  RO1   8  5 50
+  RO2   7 99 50
+  RP    3  4 30.31E3
+  VB    9  0 DC 0
+  VC 3 53 DC 2.100
+  VE   54  4 DC .6
+  VLIM  7  8 DC 0
+  VLP  91  0 DC 40
+  VLN   0 92 DC 40
+.MODEL DX D(IS=800.0E-18)
+.MODEL QX PNP(IS=800.0E-18 BF=250)
+.ENDS
+
\ No newline at end of file
diff --git a/ltspice/uv_led_driver/clean.sh b/ltspice/uv_led_driver/clean.sh
new file mode 100755
index 0000000..2f9fb7b
--- /dev/null
+++ b/ltspice/uv_led_driver/clean.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+rm *.net *.log *.raw *.plt
diff --git a/ltspice/uv_led_driver/driver_option1.asc b/ltspice/uv_led_driver/driver_option1.asc
new file mode 100644
index 0000000..3d99b40
--- /dev/null
+++ b/ltspice/uv_led_driver/driver_option1.asc
@@ -0,0 +1,57 @@
+Version 4
+SHEET 1 1136 680
+WIRE 400 -320 400 -352
+WIRE 704 -240 704 -272
+WIRE 832 -240 832 -272
+WIRE 400 -224 400 -256
+WIRE 400 -128 400 -160
+WIRE 704 -128 704 -160
+WIRE 832 -128 832 -160
+WIRE 400 -16 400 -64
+WIRE 160 16 16 16
+WIRE 336 32 224 32
+WIRE 16 112 16 16
+WIRE 400 112 400 80
+WIRE 400 112 16 112
+WIRE 400 128 400 112
+WIRE 400 240 400 208
+FLAG 704 -128 0
+FLAG 704 -272 V+
+FLAG 192 0 V+
+FLAG 192 64 0
+FLAG 832 -272 VSIG
+FLAG 832 -128 0
+FLAG 160 48 VSIG
+FLAG 400 -352 V+
+FLAG 400 240 0
+SYMBOL Opamps\\opamp2 192 -32 R0
+SYMATTR InstName U1
+SYMATTR Value LM324
+SYMBOL voltage 704 -256 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 18V
+SYMBOL npn 336 -16 R0
+SYMATTR InstName Q1
+SYMATTR Value 2N3904
+SYMBOL voltage 832 -256 R0
+WINDOW 3 24 44 Left 2
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value ""
+SYMBOL LED 384 -128 R0
+SYMATTR InstName D1
+SYMATTR Value LXHL-BW02
+SYMBOL res 384 112 R0
+SYMATTR InstName R1
+SYMATTR Value 10R
+SYMBOL LED 384 -224 R0
+SYMATTR InstName D2
+SYMATTR Value LXHL-BW02
+SYMBOL LED 384 -320 R0
+SYMATTR InstName D3
+SYMATTR Value LXHL-BW02
+TEXT 688 -16 Left 2 !.include LM324.txt
+TEXT 14 264 Left 2 !.dc V2 0mV 500mV
diff --git a/ltspice/uv_led_driver/driver_option1.log b/ltspice/uv_led_driver/driver_option1.log
new file mode 100644
index 0000000..f5e2b58
--- /dev/null
+++ b/ltspice/uv_led_driver/driver_option1.log
@@ -0,0 +1,42 @@
+Circuit: * Z:\home\maximilian\Etching\ltspice\uv_led_driver\driver_option1.asc
+
+V2: Missing value, assumed 0V @ DC
+Direct Newton iteration failed to find .op point.  (Use ".option noopiter" to skip.)
+Starting Gmin stepping
+Increasing initial diagonal Gmin to 100
+Gmin = 100
+vernier = 0.5
+vernier = 0.25
+vernier = 0.125
+Gmin = 49.6485
+vernier = 0.0625
+vernier = 0.03125
+vernier = 0.015625
+vernier = 0.0078125
+vernier = 0.00390625
+Gmin = 50.8031
+vernier = 0.00195313
+vernier = 0.000976563
+vernier = 0.000488281
+Gmin = 0
+Gmin = 0
+Gmin stepping succeeded in finding the operating point.
+
+
+Date: Sun Jun 18 13:47:21 2017
+Total elapsed time: 0.158 seconds.
+
+tnom = 27
+temp = 27
+method = trap
+totiter = 3546
+traniter = 0
+tranpoints = 0
+accept = 0
+rejected = 0
+matrix size = 40
+fillins = 74
+solver = Normal
+Matrix Compiler1:     285 opcodes  1.5/0.7/[0.5]
+Matrix Compiler2: 4.48 KB object code size  0.6/0.7/[0.4]
+
diff --git a/ltspice/uv_led_driver/driver_option1.net b/ltspice/uv_led_driver/driver_option1.net
new file mode 100644
index 0000000..09c453b
--- /dev/null
+++ b/ltspice/uv_led_driver/driver_option1.net
@@ -0,0 +1,19 @@
+* Z:\home\maximilian\Etching\ltspice\uv_led_driver\driver_option1.asc
+XU1 VSIG N005 V+ 0 N006 LM324
+V1 V+ 0 18V
+Q1 N004 N006 N005 0 2N3904
+V2 VSIG 0
+D1 N003 N004 LXHL-BW02
+R1 N005 0 10R
+D2 N002 N003 LXHL-BW02
+D3 N001 N002 LXHL-BW02
+D4 V+ N001 LXHL-BW02
+.model D D
+.lib C:\users\maximilian\My Documents\LTspiceXVII\lib\cmp\standard.dio
+.model NPN NPN
+.model PNP PNP
+.lib C:\users\maximilian\My Documents\LTspiceXVII\lib\cmp\standard.bjt
+.include LM324.txt
+.dc V2 0mV 300mV
+.backanno
+.end
diff --git a/ltspice/uv_led_driver/driver_option1.raw b/ltspice/uv_led_driver/driver_option1.raw
new file mode 100644
index 0000000..07593c4
Binary files /dev/null and b/ltspice/uv_led_driver/driver_option1.raw differ
diff --git a/ltspice/uv_led_driver/driver_option2.asc b/ltspice/uv_led_driver/driver_option2.asc
new file mode 100644
index 0000000..2954647
--- /dev/null
+++ b/ltspice/uv_led_driver/driver_option2.asc
@@ -0,0 +1,133 @@
+Version 4
+SHEET 1 1628 680
+WIRE 400 -320 400 -352
+WIRE -160 -304 -160 -336
+WIRE 944 -288 832 -288
+WIRE 1056 -288 1024 -288
+WIRE 1072 -288 1056 -288
+WIRE 1184 -288 1152 -288
+WIRE 1200 -288 1184 -288
+WIRE 1312 -288 1280 -288
+WIRE 1520 -288 1312 -288
+WIRE 704 -240 704 -272
+WIRE 832 -240 832 -288
+WIRE 1056 -240 1056 -288
+WIRE 1184 -240 1184 -288
+WIRE 1312 -240 1312 -288
+WIRE 400 -224 400 -256
+WIRE -160 -208 -160 -240
+WIRE 832 -144 832 -160
+WIRE 1056 -144 1056 -176
+WIRE 1056 -144 832 -144
+WIRE 1184 -144 1184 -176
+WIRE 1184 -144 1056 -144
+WIRE 1312 -144 1312 -176
+WIRE 1312 -144 1184 -144
+WIRE 400 -128 400 -160
+WIRE 704 -128 704 -160
+WIRE 832 -128 832 -144
+WIRE -160 -112 -160 -144
+WIRE 400 -16 400 -64
+WIRE -160 0 -160 -48
+WIRE 160 16 16 16
+WIRE -400 32 -544 32
+WIRE 336 32 224 32
+WIRE -224 48 -336 48
+WIRE 16 112 16 16
+WIRE 400 112 400 80
+WIRE 400 112 16 112
+WIRE -544 128 -544 32
+WIRE -160 128 -160 96
+WIRE -160 128 -544 128
+WIRE 400 128 400 112
+WIRE -160 144 -160 128
+WIRE 400 240 400 208
+WIRE -160 256 -160 224
+FLAG 704 -128 0
+FLAG 704 -272 V+
+FLAG 192 0 V+
+FLAG 192 64 0
+FLAG 1520 -288 VSIG
+FLAG 832 -128 0
+FLAG 160 48 VSIG
+FLAG 400 -352 V+
+FLAG 400 240 0
+FLAG -368 16 V+
+FLAG -368 80 0
+FLAG -400 64 VSIG
+FLAG -160 -336 V+
+FLAG -160 256 0
+SYMBOL Opamps\\opamp2 192 -32 R0
+SYMATTR InstName U1
+SYMATTR Value LM324
+SYMBOL voltage 704 -256 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 18V
+SYMBOL npn 336 -16 R0
+SYMATTR InstName Q1
+SYMATTR Value 2N3904
+SYMBOL voltage 832 -256 R0
+WINDOW 3 0 -114 Left 2
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR Value PULSE(0V 3.3V 0s 1us 1us {DUTY_CYCLE} 10us)
+SYMATTR InstName V2
+SYMBOL LED 384 -128 R0
+SYMATTR InstName D1
+SYMATTR Value LXHL-BW02
+SYMBOL res 384 112 R0
+SYMATTR InstName R1
+SYMATTR Value 10R
+SYMBOL LED 384 -224 R0
+SYMATTR InstName D2
+SYMATTR Value LXHL-BW02
+SYMBOL LED 384 -320 R0
+SYMATTR InstName D3
+SYMATTR Value LXHL-BW02
+SYMBOL res 1040 -304 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 10k
+SYMBOL cap 1040 -240 R0
+SYMATTR InstName C1
+SYMATTR Value 47n
+SYMBOL res 1168 -304 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R3
+SYMATTR Value 10k
+SYMBOL cap 1168 -240 R0
+SYMATTR InstName C2
+SYMATTR Value 47n
+SYMBOL res 1296 -304 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R4
+SYMATTR Value 10k
+SYMBOL cap 1296 -240 R0
+SYMATTR InstName C3
+SYMATTR Value 47n
+SYMBOL Opamps\\opamp2 -368 -16 R0
+SYMATTR InstName U2
+SYMATTR Value LM324
+SYMBOL npn -224 0 R0
+SYMATTR InstName Q2
+SYMATTR Value 2N3904
+SYMBOL LED -176 -112 R0
+SYMATTR InstName D4
+SYMATTR Value LXHL-BW02
+SYMBOL res -176 128 R0
+SYMATTR InstName R5
+SYMATTR Value 10R
+SYMBOL LED -176 -208 R0
+SYMATTR InstName D5
+SYMATTR Value LXHL-BW02
+SYMBOL LED -176 -304 R0
+SYMATTR InstName D6
+SYMATTR Value LXHL-BW02
+TEXT -536 544 Left 2 !.include LM324.txt
+TEXT -536 416 Left 2 !.tran 100ms
+TEXT -536 480 Left 2 !;.step param DUTY_CYCLE list 1us 2us 3us
diff --git a/ltspice/uv_led_driver/driver_option2.log b/ltspice/uv_led_driver/driver_option2.log
new file mode 100644
index 0000000..9b7ebd3
--- /dev/null
+++ b/ltspice/uv_led_driver/driver_option2.log
@@ -0,0 +1,60 @@
+Circuit: * Z:\home\maximilian\UppSense\ltspice\uv_led_driver\driver_option2.asc
+
+Early termination of direct N-R iteration.
+Direct Newton iteration failed to find .op point.  (Use ".option noopiter" to skip.)
+Starting Gmin stepping
+Gmin = 10
+vernier = 0.5
+vernier = 0.25
+Gmin = 2.62144
+vernier = 0.125
+vernier = 0.0625
+vernier = 0.03125
+Gmin = 2.39176
+vernier = 0.015625
+vernier = 0.0078125
+vernier = 0.00390625
+Gmin = 2.38938
+vernier = 0.00520833
+vernier = 0.00260417
+vernier = 0.00130208
+Gmin = 2.37466
+vernier = 0.00173611
+vernier = 0.00231481
+Gmin = 2.3642
+vernier = 0.00115741
+vernier = 0.000578703
+vernier = 0.000771604
+Gmin = 2.36158
+vernier = 0.00102881
+Gmin = 2.35612
+vernier = 0.00137174
+vernier = 0.00068587
+vernier = 0.000514403
+vernier = 0.00068587
+Gmin = 2.3538
+vernier = 0.000914493
+Gmin = 2.34896
+vernier = 0.00121932
+vernier = 0.000609662
+vernier = 0.000457246
+vernier = 0.000609662
+Gmin = 2.34691
+vernier = 0.000812882
+vernier = 0.000406441
+Singular matrix:  Check node v:u2:ln#branch
+   Iteration No. 2
+Gmin = 0
+Singular matrix:  Check node v:u2:ln#branch
+   Iteration No. 1
+Gmin stepping failed
+
+Starting source stepping with srcstepmethod=0
+Source Step = 3.0303%
+Source Step = 33.3333%
+Source Step = 63.6364%
+Source Step = 93.9394%
+Source stepping succeeded in finding the operating point.
+
+.step duty_cycle=1e-006
+.step duty_cycle=2e-006
diff --git a/ltspice/uv_led_driver/driver_option2.op.raw b/ltspice/uv_led_driver/driver_option2.op.raw
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index 0000000..1f16d8d
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