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Remove INA126 because it doesn't work in this configuration. Replace by old subtractor circuit

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This commit is contained in:
Mario Hüttel 2020-01-11 20:22:02 +01:00
parent f895e84418
commit dda1209659
2 changed files with 465 additions and 154 deletions
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594
frontend.sch
View File

@ -19,7 +19,7 @@ U 1 1 5D8C684C
P 3450 1400 P 3450 1400
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F 1 "MCP6V31U" H 3450 1200 50 0000 L CNN F 1 "MCP6V31U" H 3450 1200 50 0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23-5_HandSoldering" H 3450 1400 50 0001 L CNN F 2 "Package_TO_SOT_SMD:SOT-353_SC-70-5" H 3450 1400 50 0001 L CNN
F 3 "http://ww1.microchip.com/downloads/en/devicedoc/22229d.pdf" H 3450 1400 50 0001 C CNN F 3 "http://ww1.microchip.com/downloads/en/devicedoc/22229d.pdf" H 3450 1400 50 0001 C CNN
1 3450 1400 1 3450 1400
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@ -366,75 +366,73 @@ VREF
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@ -460,12 +458,12 @@ $EndComp
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@ -878,109 +876,49 @@ Wire Wire Line
Wire Wire Line Wire Wire Line
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$EndComp
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@ -1009,7 +947,7 @@ U 1 1 5E115D94
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F 3 "http://ww1.microchip.com/downloads/en/devicedoc/22229d.pdf" H 1600 1300 50 0001 C CNN F 3 "http://ww1.microchip.com/downloads/en/devicedoc/22229d.pdf" H 1600 1300 50 0001 C CNN
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@ -1129,4 +1067,402 @@ Wire Wire Line
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Wire Wire Line
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L Device:R R214
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1 2950 3850
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$Comp
L Device:R R212
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1 0 0 -1
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Wire Wire Line
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$Comp
L Device:C C217
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1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 2900 5550
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$Comp
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Connection ~ 1250 6050
Wire Wire Line
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$Comp
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F 3 "" H 1250 6550 50 0001 C CNN
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$EndComp
$Comp
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Wire Wire Line
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Wire Wire Line
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Connection ~ 4850 3550
Wire Wire Line
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$Comp
L Device:C C219
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Wire Wire Line
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$EndComp
$Comp
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$EndComp
$Comp
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1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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$Comp
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$EndComp
$Comp
L Device:R R215
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0 1 1 0
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L Device:R R216
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F 1 "5k 0.1%" H 4070 4305 50 0000 L CNN
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F 3 "~" H 4000 4350 50 0001 C CNN
1 4000 4350
-1 0 0 1
$EndComp
Wire Wire Line
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$Comp
L power:GND #PWR0143
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Wire Wire Line
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Wire Wire Line
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$Comp
L Device:R R217
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-1 0 0 1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 4350 4350
Wire Wire Line
4350 4350 4350 4000
$Comp
L Device:R R218
U 1 1 5E3A5DAA
P 5600 4100
F 0 "R218" H 5670 4146 50 0000 L CNN
F 1 "5k 0.1%" H 5670 4055 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 5530 4100 50 0001 C CNN
F 3 "~" H 5600 4100 50 0001 C CNN
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-1 0 0 1
$EndComp
Wire Wire Line
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Connection ~ 5600 3900
Wire Wire Line
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$EndSCHEMATC $EndSCHEMATC

25
reflow-oven-control-pcb-cache.lib
View File

@ -39,31 +39,6 @@ X 2Y3 9 500 -200 200 L 50 50 1 0 T
ENDDRAW ENDDRAW
ENDDEF ENDDEF
# #
# Amplifier_Instrumentation_INA128
#
DEF Amplifier_Instrumentation_INA128 U 0 5 Y Y 1 F N
F0 "U" 150 125 50 H V L CNN
F1 "Amplifier_Instrumentation_INA128" 150 -125 50 H V L CNN
F2 "" 100 0 50 H I C CNN
F3 "" 100 0 50 H I C CNN
ALIAS INA129
$FPLIST
DIP*W7.62mm*
SOIC*P1.27mm*
$ENDFPLIST
DRAW
P 4 0 1 10 300 0 -200 250 -200 -250 300 0 f
X Rg 1 -300 100 100 R 50 50 1 1 P
X - 2 -300 -200 100 R 50 50 1 1 I
X + 3 -300 200 100 R 50 50 1 1 I
X V- 4 0 -300 150 U 50 50 1 1 W
X Ref 5 100 -300 200 U 50 50 1 1 I
X ~ 6 400 0 100 L 50 50 1 1 O
X V+ 7 0 300 150 D 50 50 1 1 W
X Rg 8 -300 -100 100 R 50 50 1 1 P
ENDDRAW
ENDDEF
#
# Amplifier_Operational_MCP6401UT-xOT # Amplifier_Operational_MCP6401UT-xOT
# #
DEF Amplifier_Operational_MCP6401UT-xOT U 0 5 Y Y 1 F N DEF Amplifier_Operational_MCP6401UT-xOT U 0 5 Y Y 1 F N