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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 6
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text GLabel 5750 1300 0 50 Input ~ 0
P22PWM
Text GLabel 9950 3050 2 50 Input ~ 0
Vdcraw
Wire Wire Line
9950 3050 9800 3050
Text Notes 5650 1000 0 50 ~ 0
Power supply 1:\nuse PWM from controller as\ncontrollable value between\n0 and 3V3. Will be filtered\nout in next stage
$Comp
L misc-mcus:WPM404 U300
U 1 1 624DAC4C
P 6200 2500
F 0 "U300" H 6200 2915 50 0000 C CNN
F 1 "WPM404" H 6200 2824 50 0000 C CNN
F 2 "chip-bo:VMA404-Module-THT" H 6200 2500 50 0001 C CNN
F 3 "" H 6200 2500 50 0001 C CNN
1 6200 2500
1 0 0 -1
$EndComp
Wire Wire Line
5750 2650 5650 2650
Wire Wire Line
5650 2650 5650 2850
Wire Wire Line
5650 2850 6200 2850
Wire Wire Line
6750 2850 6750 2650
Wire Wire Line
6750 2650 6650 2650
$Comp
L power:GND #PWR0134
U 1 1 624DB454
P 6200 2950
F 0 "#PWR0134" H 6200 2700 50 0001 C CNN
F 1 "GND" H 6205 2777 50 0000 C CNN
F 2 "" H 6200 2950 50 0001 C CNN
F 3 "" H 6200 2950 50 0001 C CNN
1 6200 2950
1 0 0 -1
$EndComp
Wire Wire Line
6200 2950 6200 2850
Connection ~ 6200 2850
Wire Wire Line
6200 2850 6750 2850
$Comp
L power:VBUS #PWR0135
U 1 1 624DBA73
P 5650 2250
F 0 "#PWR0135" H 5650 2100 50 0001 C CNN
F 1 "VBUS" H 5665 2423 50 0000 C CNN
F 2 "" H 5650 2250 50 0001 C CNN
F 3 "" H 5650 2250 50 0001 C CNN
1 5650 2250
1 0 0 -1
$EndComp
Wire Wire Line
5650 2250 5650 2350
Wire Wire Line
5650 2350 5750 2350
Text Notes 5600 2000 0 50 ~ 0
Power supply 2:\nUse an external VMA404/WPM404\nmodule as DCDC buck-boost\nconverter. Output not digitally\ncontrollable, though.
Text Notes 5600 3550 0 50 ~ 0
Power supply 3:\nReimplement VMA404/WPM404\nbut with digipot for digital control
$Comp
L Regulator_Switching:LM2596T-ADJ U301
U 1 1 624F85D5
P 6150 4100
F 0 "U301" H 6150 4467 50 0000 C CNN
F 1 "LM2596T-ADJ" H 6150 4376 50 0000 C CNN
F 2 "Package_TO_SOT_THT:TO-220-5_P3.4x3.7mm_StaggerOdd_Lead3.8mm_Vertical" H 6200 3850 50 0001 L CIN
F 3 "http://www.ti.com/lit/ds/symlink/lm2596.pdf" H 6150 4100 50 0001 C CNN
1 6150 4100
1 0 0 -1
$EndComp
$Comp
L power:VBUS #PWR0136
U 1 1 624F935D
P 4500 3850
F 0 "#PWR0136" H 4500 3700 50 0001 C CNN
F 1 "VBUS" H 4515 4023 50 0000 C CNN
F 2 "" H 4500 3850 50 0001 C CNN
F 3 "" H 4500 3850 50 0001 C CNN
1 4500 3850
1 0 0 -1
$EndComp
Wire Wire Line
4500 3850 4500 4000
Wire Wire Line
4500 4000 4600 4000
$Comp
L Device:C C300
U 1 1 624FA92B
P 4600 4350
F 0 "C300" H 4715 4396 50 0000 L CNN
F 1 "470uF" H 4715 4305 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 4638 4200 50 0001 C CNN
F 3 "~" H 4600 4350 50 0001 C CNN
1 4600 4350
1 0 0 -1
$EndComp
Wire Wire Line
4600 4200 4600 4000
Connection ~ 4600 4000
Wire Wire Line
5550 4200 5650 4200
Wire Wire Line
6150 4700 6150 4750
$Comp
L power:GND #PWR0137
U 1 1 624FB9F9
P 6150 4750
F 0 "#PWR0137" H 6150 4500 50 0001 C CNN
F 1 "GND" H 6155 4577 50 0000 C CNN
F 2 "" H 6150 4750 50 0001 C CNN
F 3 "" H 6150 4750 50 0001 C CNN
1 6150 4750
1 0 0 -1
$EndComp
Connection ~ 6150 4700
$Comp
L Device:C C301
U 1 1 62500C3C
P 5100 4350
F 0 "C301" H 5215 4396 50 0000 L CNN
F 1 "100nF" H 5215 4305 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder" H 5138 4200 50 0001 C CNN
F 3 "~" H 5100 4350 50 0001 C CNN
1 5100 4350
1 0 0 -1
$EndComp
Wire Wire Line
4600 4000 5100 4000
Wire Wire Line
5100 4200 5100 4000
Connection ~ 5100 4000
Wire Wire Line
5100 4000 5650 4000
Wire Wire Line
4600 4700 5100 4700
Connection ~ 5100 4700
$Comp
L Device:D D300
U 1 1 62502C0F
P 6900 4450
F 0 "D300" V 6854 4530 50 0000 L CNN
F 1 "1N5822/SS14" V 6945 4530 50 0000 L CNN
F 2 "Diode_SMD:D_SOD-123" H 6900 4450 50 0001 C CNN
F 3 "~" H 6900 4450 50 0001 C CNN
1 6900 4450
0 1 1 0
$EndComp
Wire Wire Line
6650 4200 6900 4200
Wire Wire Line
6900 4200 6900 4300
Wire Wire Line
6150 4400 6150 4700
Wire Wire Line
6150 4700 6900 4700
Wire Wire Line
6900 4700 6900 4600
Wire Wire Line
5100 4500 5100 4700
Wire Wire Line
4600 4500 4600 4700
$Comp
L Device:L L300
U 1 1 625083CC
P 7150 4200
F 0 "L300" V 7340 4200 50 0000 C CNN
F 1 "10nH" V 7249 4200 50 0000 C CNN
F 2 "Inductor_SMD:L_7.3x7.3_H4.5" H 7150 4200 50 0001 C CNN
F 3 "~" H 7150 4200 50 0001 C CNN
1 7150 4200
0 -1 -1 0
$EndComp
Wire Wire Line
7000 4200 6900 4200
Connection ~ 6900 4200
$Comp
L Device:C C302
U 1 1 6250977C
P 7450 4450
F 0 "C302" H 7565 4496 50 0000 L CNN
F 1 "220uF" H 7565 4405 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 7488 4300 50 0001 C CNN
F 3 "~" H 7450 4450 50 0001 C CNN
1 7450 4450
1 0 0 -1
$EndComp
$Comp
L Device:C C303
U 1 1 62509B61
P 7950 4450
F 0 "C303" H 8065 4496 50 0000 L CNN
F 1 "100nF" H 8065 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder" H 7988 4300 50 0001 C CNN
F 3 "~" H 7950 4450 50 0001 C CNN
1 7950 4450
1 0 0 -1
$EndComp
Wire Wire Line
7300 4200 7450 4200
Wire Wire Line
7450 4200 7450 4300
Wire Wire Line
7450 4200 7950 4200
Wire Wire Line
7950 4200 7950 4300
Connection ~ 7450 4200
Wire Wire Line
7950 4600 7950 4700
Wire Wire Line
7950 4700 7450 4700
Connection ~ 6900 4700
Wire Wire Line
7450 4600 7450 4700
Connection ~ 7450 4700
Wire Wire Line
7450 4700 6900 4700
Text GLabel 7000 3900 2 50 Input ~ 0
DPOT_W
Wire Wire Line
7000 3900 6850 3900
Wire Wire Line
6850 3900 6850 4000
Wire Wire Line
6850 4000 6650 4000
$Comp
L Device:R R300
U 1 1 6251398A
P 8200 3750
F 0 "R300" H 8270 3796 50 0000 L CNN
F 1 "820" H 8270 3705 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 8130 3750 50 0001 C CNN
F 3 "~" H 8200 3750 50 0001 C CNN
1 8200 3750
0 1 1 0
$EndComp
$Comp
L power:GND #PWR0138
U 1 1 625155C3
P 8450 3850
F 0 "#PWR0138" H 8450 3600 50 0001 C CNN
F 1 "GND" H 8455 3677 50 0000 C CNN
F 2 "" H 8450 3850 50 0001 C CNN
F 3 "" H 8450 3850 50 0001 C CNN
1 8450 3850
1 0 0 -1
$EndComp
Wire Wire Line
8050 3750 7900 3750
Wire Wire Line
8350 3750 8450 3750
Wire Wire Line
8450 3750 8450 3850
Connection ~ 7950 4200
Text Notes 7200 5250 0 50 ~ 0
See 'psuflt' schematic\nfor the implementation\nof the digipot & where\nthese global labels\ncome from
$Comp
L misc-mcus:BD00IA5MEFJ U?
U 1 1 6266715B
P 6250 5950
AR Path="/61CA98F5/6266715B" Ref="U?" Part="1"
AR Path="/61CA9896/6266715B" Ref="U302" Part="1"
F 0 "U302" H 6250 6365 50 0000 C CNN
F 1 "BD00IA5MEFJ" H 6250 6274 50 0000 C CNN
F 2 "Package_SO:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm" H 6250 6000 50 0001 C CNN
F 3 "https://www.farnell.com/datasheets/2296755.pdf" H 6250 6000 50 0001 C CNN
1 6250 5950
1 0 0 -1
$EndComp
$Comp
L power:VBUS #PWR?
U 1 1 62667161
P 5050 5500
AR Path="/61CA98F5/62667161" Ref="#PWR?" Part="1"
AR Path="/61CA9896/62667161" Ref="#PWR0139" Part="1"
F 0 "#PWR0139" H 5050 5350 50 0001 C CNN
F 1 "VBUS" H 5065 5673 50 0000 C CNN
F 2 "" H 5050 5500 50 0001 C CNN
F 3 "" H 5050 5500 50 0001 C CNN
1 5050 5500
1 0 0 -1
$EndComp
Wire Wire Line
5050 5600 5050 5500
Connection ~ 5050 5600
$Comp
L power:GND #PWR?
U 1 1 6266716A
P 6250 6450
AR Path="/61CA98F5/6266716A" Ref="#PWR?" Part="1"
AR Path="/61CA9896/6266716A" Ref="#PWR0140" Part="1"
F 0 "#PWR0140" H 6250 6200 50 0001 C CNN
F 1 "GND" H 6255 6277 50 0000 C CNN
F 2 "" H 6250 6450 50 0001 C CNN
F 3 "" H 6250 6450 50 0001 C CNN
1 6250 6450
1 0 0 -1
$EndComp
Wire Wire Line
6250 6450 6250 6350
Text GLabel 7200 5900 2 50 Input ~ 0
DPOT_W
Text GLabel 9950 3200 2 50 Input ~ 0
DPOT_HI
Wire Wire Line
9950 3200 9800 3200
Connection ~ 6250 6350
Wire Wire Line
6250 6350 6250 6300
Wire Wire Line
5600 5600 5600 5800
Wire Wire Line
5600 5800 5700 5800
$Comp
L Device:C C?
U 1 1 6266718D
P 4700 5850
AR Path="/61CA98F5/6266718D" Ref="C?" Part="1"
AR Path="/61CA9896/6266718D" Ref="C304" Part="1"
F 0 "C304" H 4815 5896 50 0000 L CNN
F 1 "1uF" H 4815 5805 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder" H 4738 5700 50 0001 C CNN
F 3 "~" H 4700 5850 50 0001 C CNN
1 4700 5850
1 0 0 -1
$EndComp
Wire Wire Line
5050 5600 4700 5600
Wire Wire Line
7800 5950 7800 5800
Connection ~ 7800 5800
Wire Wire Line
7800 6350 7800 6250
Wire Wire Line
5050 5600 5600 5600
Wire Wire Line
4700 5600 4700 5700
Text Notes 5700 5450 0 50 ~ 0
Power supply 4:\nUse an LDO to control the\nvoltage. No PWM or filter\nneeded, only the digipot.
Text GLabel 7900 3750 0 50 Input ~ 0
DPOT_LO
Wire Wire Line
6250 6350 7800 6350
Wire Wire Line
5700 6100 5600 6100
Text GLabel 5600 6100 0 50 Input ~ 0
~EMERG_SHDN~
Wire Wire Line
5100 4700 6150 4700
Text GLabel 5550 4350 3 50 Input ~ 0
EMERG_SHDN
Wire Wire Line
5550 4350 5550 4200
Wire Wire Line
6250 6350 4700 6350
Wire Wire Line
4700 6000 4700 6350
$Comp
L misc-mcus:Jumper_4 JP?
U 1 1 62C0B09A
P 9450 3050
AR Path="/61CA98F5/62C0B09A" Ref="JP?" Part="1"
AR Path="/61CA9896/62C0B09A" Ref="JP300" Part="1"
F 0 "JP300" V 9404 3117 50 0000 L CNN
F 1 "Jumper_4" V 9495 3117 50 0000 L CNN
F 2 "chip-bo:Jumper4_PinHeader" H 9450 3050 50 0001 C CNN
F 3 "~" H 9450 3050 50 0001 C CNN
1 9450 3050
1 0 0 -1
$EndComp
Wire Wire Line
8800 2350 8800 3000
Wire Wire Line
8800 3000 9250 3000
Wire Wire Line
6650 2350 8800 2350
Wire Wire Line
8800 4200 8800 3100
Wire Wire Line
8800 3100 9250 3100
Wire Wire Line
7950 4200 8800 4200
Wire Wire Line
9050 5800 9050 3200
Wire Wire Line
9050 3200 9250 3200
Wire Wire Line
7800 5800 9050 5800
Wire Wire Line
9250 2900 9050 2900
Wire Wire Line
9050 2900 9050 1300
Wire Wire Line
5750 1300 9050 1300
Wire Wire Line
9800 3200 9800 3050
Connection ~ 9800 3050
Wire Wire Line
9800 3050 9650 3050
Wire Wire Line
6800 5800 7800 5800
Wire Wire Line
6800 5900 7200 5900
$Comp
L Device:C C?
U 1 1 62667197
P 7800 6100
AR Path="/61CA98F5/62667197" Ref="C?" Part="1"
AR Path="/61CA9896/62667197" Ref="C305" Part="1"
F 0 "C305" H 7915 6146 50 0000 L CNN
F 1 "10uF" H 7915 6055 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder" H 7838 5950 50 0001 C CNN
F 3 "~" H 7800 6100 50 0001 C CNN
1 7800 6100
1 0 0 -1
$EndComp
Wire Wire Line
5300 5900 5050 5900
Wire Wire Line
5700 5900 5600 5900
$Comp
L Device:R R?
U 1 1 62667182
P 4150 5700
AR Path="/61CA98F5/62667182" Ref="R?" Part="1"
AR Path="/61CA9896/62667182" Ref="R301" Part="1"
F 0 "R301" V 3943 5700 50 0000 C CNN
F 1 "100k" V 4034 5700 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 4080 5700 50 0001 C CNN
F 3 "~" H 4150 5700 50 0001 C CNN
1 4150 5700
0 1 1 0
$EndComp
NoConn ~ 5300 5900
NoConn ~ 5600 5900
Wire Wire Line
5050 5900 5050 5600
NoConn ~ 4300 5700
NoConn ~ 4000 5700
Text Notes 3700 6100 0 50 ~ 0
resistor may be\nneeded for some\nLDOs, but not for\nthis one
$EndSCHEMATC
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