hc_switch.sch

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:hc_switch-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "Sapflow Measurement Heater Control - Switch Only Config."
Date ""
Rev "1.0"
Comp "USDA Coweeta Hydrologic Laboratory"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L D D3
U 1 1 58C026C5
P 8950 1600
F 0 "D3" H 8950 1700 50  0000 C CNN
F 1 "1N4004" H 8950 1500 50  0000 C CNN
F 2 "Diodes_THT:D_DO-41_SOD81_P7.62mm_Horizontal" H 8950 1600 50  0001 C CNN
F 3 "" H 8950 1600 50  0001 C CNN
	1    8950 1600
	0    1    1    0   
$EndComp
$Comp
L LED D2
U 1 1 58C05B87
P 7050 1400
F 0 "D2" H 7050 1500 50  0000 C CNN
F 1 "LED" H 7050 1300 50  0000 C CNN
F 2 "LEDs:LED_D3.0mm" H 7050 1400 50  0001 C CNN
F 3 "" H 7050 1400 50  0001 C CNN
	1    7050 1400
	0    -1   -1   0   
$EndComp
$Comp
L R R13
U 1 1 58C062A2
P 7050 1800
F 0 "R13" V 7130 1800 50  0000 C CNN
F 1 "1.5k" V 7050 1800 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6980 1800 50  0001 C CNN
F 3 "" H 7050 1800 50  0001 C CNN
	1    7050 1800
	1    0    0    -1  
$EndComp
$Comp
L IRF540N Q2
U 1 1 58C027E1
P 8850 4600
F 0 "Q2" H 9100 4675 50  0000 L CNN
F 1 "irfb7546pbf" H 9100 4350 50  0000 L CNN
F 2 "connectors:TO-220_Underneath" H 9100 4525 50  0001 L CIN
F 3 "" H 8850 4600 50  0001 L CNN
	1    8850 4600
	1    0    0    -1  
$EndComp
Text Label 8950 2700 0    60   ~ 0
load
Text Label 7350 4650 0    60   ~ 0
gate
$Comp
L GND #PWR01
U 1 1 58C07618
P 8950 5300
F 0 "#PWR01" H 8950 5050 50  0001 C CNN
F 1 "GND" H 8950 5150 50  0000 C CNN
F 2 "" H 8950 5300 50  0001 C CNN
F 3 "" H 8950 5300 50  0001 C CNN
	1    8950 5300
	1    0    0    -1  
$EndComp
Text Label 8950 4950 0    60   ~ 0
S
$Comp
L GND #PWR02
U 1 1 58CCB118
P 10300 3050
F 0 "#PWR02" H 10300 2800 50  0001 C CNN
F 1 "GND" H 10300 2900 50  0000 C CNN
F 2 "" H 10300 3050 50  0001 C CNN
F 3 "" H 10300 3050 50  0001 C CNN
	1    10300 3050
	-1   0    0    -1  
$EndComp
$Comp
L Screw_Terminal_1x02 J1
U 1 1 58E69FBE
P 10500 1600
F 0 "J1" H 10500 1850 50  0000 C TNN
F 1 "Screw_Terminal_1x02" V 10350 1600 50  0000 C TNN
F 2 "ab2_terminal_block:AB2_TB_02_RA_5.08MM_L-GRN" H 10500 1375 50  0001 C CNN
F 3 "" H 10475 1600 50  0001 C CNN
	1    10500 1600
	-1   0    0    -1  
$EndComp
$Comp
L Screw_Terminal_1x02 J2
U 1 1 58E6A08F
P 10500 2800
F 0 "J2" H 10500 3050 50  0000 C TNN
F 1 "Screw_Terminal_1x02" V 10350 2800 50  0000 C TNN
F 2 "ab2_terminal_block:AB2_TB_02_RA_5.08MM_L-GRN" H 10500 2575 50  0001 C CNN
F 3 "" H 10475 2800 50  0001 C CNN
	1    10500 2800
	-1   0    0    1   
$EndComp
Text Notes 9200 800  0    60   ~ 0
Power
Text Notes 6950 850  0    60   ~ 0
Pretty
Text Label 10000 4050 0    60   ~ 0
enable
$Comp
L GND #PWR03
U 1 1 58E70938
P 10300 4450
F 0 "#PWR03" H 10300 4200 50  0001 C CNN
F 1 "GND" H 10300 4300 50  0000 C CNN
F 2 "" H 10300 4450 50  0001 C CNN
F 3 "" H 10300 4450 50  0001 C CNN
	1    10300 4450
	-1   0    0    -1  
$EndComp
Text Notes 10250 750  0    60   ~ 0
Connect
$Comp
L Screw_Terminal_1x04 J3
U 1 1 58E79445
P 10500 3950
F 0 "J3" H 10500 4400 50  0000 C TNN
F 1 "Screw_Terminal_1x04" V 10350 3950 50  0000 C TNN
F 2 "Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_4pol" H 10500 3525 50  0001 C CNN
F 3 "" H 10475 4150 50  0001 C CNN
	1    10500 3950
	-1   0    0    1   
$EndComp
$Comp
L CONN_01X01 J4
U 1 1 58E7A061
P 10500 2350
F 0 "J4" H 10500 2450 50  0000 C CNN
F 1 "CONN_01X01" V 10700 2350 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_single_1-2mmDrill" H 10500 2350 50  0001 C CNN
F 3 "" H 10500 2350 50  0001 C CNN
	1    10500 2350
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X01 J5
U 1 1 58E84B75
P 10000 4250
F 0 "J5" H 10000 4350 50  0000 C CNN
F 1 "CONN_01X01" V 10200 4250 50  0000 C CNN
F 2 "connectors:small_SWP_single_1-5mmDrill" H 10000 4250 50  0001 C CNN
F 3 "" H 10000 4250 50  0001 C CNN
	1    10000 4250
	0    1    1    0   
$EndComp
$Comp
L BC237 Q3
U 1 1 58EE3062
P 6150 5550
F 0 "Q3" H 6350 5625 50  0000 L CNN
F 1 "BC337" H 6350 5550 50  0000 L CNN
F 2 "TO_SOT_Packages_THT:TO-92_Molded_Narrow" H 6350 5475 50  0001 L CIN
F 3 "" H 6150 5550 50  0001 L CNN
	1    6150 5550
	1    0    0    -1  
$EndComp
$Comp
L R R17
U 1 1 58EE3CB4
P 6250 5050
F 0 "R17" V 6330 5050 50  0000 C CNN
F 1 "0R" V 6250 5050 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6180 5050 50  0001 C CNN
F 3 "" H 6250 5050 50  0001 C CNN
	1    6250 5050
	-1   0    0    1   
$EndComp
$Comp
L R R16
U 1 1 58EE3E7D
P 6250 4250
F 0 "R16" V 6330 4250 50  0000 C CNN
F 1 "100k" V 6250 4250 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6180 4250 50  0001 C CNN
F 3 "" H 6250 4250 50  0001 C CNN
	1    6250 4250
	-1   0    0    1   
$EndComp
$Comp
L R R15
U 1 1 58EE3F14
P 5600 5550
F 0 "R15" V 5680 5550 50  0000 C CNN
F 1 "100k" V 5600 5550 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 5530 5550 50  0001 C CNN
F 3 "" H 5600 5550 50  0001 C CNN
	1    5600 5550
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR04
U 1 1 58EE4276
P 6250 5900
F 0 "#PWR04" H 6250 5650 50  0001 C CNN
F 1 "GND" H 6250 5750 50  0000 C CNN
F 2 "" H 6250 5900 50  0001 C CNN
F 3 "" H 6250 5900 50  0001 C CNN
	1    6250 5900
	-1   0    0    -1  
$EndComp
Text Label 5150 5550 0    60   ~ 0
enable
Wire Wire Line
	8950 850  8950 1450
Wire Wire Line
	8950 4800 8950 5300
Connection ~ 8950 1100
Wire Wire Line
	8950 1750 8950 4400
Wire Wire Line
	7050 1550 7050 1650
Wire Wire Line
	7050 1950 7050 2100
Connection ~ 8950 2100
Wire Wire Line
	7050 1100 7050 1250
Wire Wire Line
	6950 4650 8650 4650
Wire Wire Line
	10300 2200 10300 2700
Wire Wire Line
	10300 2900 10300 3050
Wire Wire Line
	9750 1100 9750 1500
Wire Wire Line
	9750 1500 10300 1500
Wire Wire Line
	10300 1700 9750 1700
Wire Wire Line
	9750 1700 9750 2100
Wire Notes Line
	8550 600  9600 600 
Wire Notes Line
	9600 600  9600 5950
Wire Notes Line
	9600 5950 8550 5950
Wire Notes Line
	8550 5950 8550 600 
Wire Notes Line
	6650 600  6650 2500
Wire Notes Line
	6650 2500 7500 2500
Wire Notes Line
	7500 2500 7500 600 
Wire Notes Line
	7500 600  6650 600 
Wire Wire Line
	10300 4050 10000 4050
Wire Wire Line
	10000 3850 10300 3850
Wire Notes Line
	9850 600  9850 5950
Wire Notes Line
	9850 5950 10950 5950
Wire Notes Line
	10950 5950 10950 600 
Wire Notes Line
	10950 600  9850 600 
Wire Wire Line
	10300 3650 10000 3650
Connection ~ 10300 2350
Wire Wire Line
	10300 4250 10300 4450
Wire Wire Line
	6250 5900 6250 5750
Wire Wire Line
	5950 5550 5750 5550
Wire Wire Line
	6250 5350 6250 5200
Wire Wire Line
	6250 4400 6250 4900
Connection ~ 6250 4650
Wire Wire Line
	6250 3900 6250 4100
Wire Wire Line
	5450 5550 5150 5550
$Comp
L +BATT #PWR05
U 1 1 58EE6925
P 6250 3900
F 0 "#PWR05" H 6250 3750 50  0001 C CNN
F 1 "+BATT" H 6250 4040 50  0000 C CNN
F 2 "" H 6250 3900 50  0001 C CNN
F 3 "" H 6250 3900 50  0001 C CNN
	1    6250 3900
	1    0    0    -1  
$EndComp
$Comp
L +BATT #PWR06
U 1 1 58EE6DBF
P 10300 2200
F 0 "#PWR06" H 10300 2050 50  0001 C CNN
F 1 "+BATT" H 10300 2340 50  0000 C CNN
F 2 "" H 10300 2200 50  0001 C CNN
F 3 "" H 10300 2200 50  0001 C CNN
	1    10300 2200
	1    0    0    -1  
$EndComp
$Comp
L +BATT #PWR07
U 1 1 58EE9367
P 8950 850
F 0 "#PWR07" H 8950 700 50  0001 C CNN
F 1 "+BATT" H 8950 990 50  0000 C CNN
F 2 "" H 8950 850 50  0001 C CNN
F 3 "" H 8950 850 50  0001 C CNN
	1    8950 850 
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X01 J6
U 1 1 58EFD9C2
P 10400 4900
F 0 "J6" H 10400 5000 50  0000 C CNN
F 1 "CONN_01X01" H 10600 4900 50  0000 C CNN
F 2 "connectors:my_3.2mm_M3_Pad" H 10400 4900 50  0001 C CNN
F 3 "" H 10400 4900 50  0001 C CNN
	1    10400 4900
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X01 J7
U 1 1 58EFDA8C
P 10400 5100
F 0 "J7" H 10400 5200 50  0000 C CNN
F 1 "CONN_01X01" H 10600 5100 50  0000 C CNN
F 2 "connectors:my_3.2mm_M3_Pad" H 10400 5100 50  0001 C CNN
F 3 "" H 10400 5100 50  0001 C CNN
	1    10400 5100
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X01 J8
U 1 1 58EFDB09
P 10400 5300
F 0 "J8" H 10400 5400 50  0000 C CNN
F 1 "CONN_01X01" H 10600 5300 50  0000 C CNN
F 2 "connectors:my_3.2mm_M3_Pad" H 10400 5300 50  0001 C CNN
F 3 "" H 10400 5300 50  0001 C CNN
	1    10400 5300
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X01 J9
U 1 1 58EFDB89
P 10400 5500
F 0 "J9" H 10400 5600 50  0000 C CNN
F 1 "CONN_01X01" H 10600 5500 50  0000 C CNN
F 2 "connectors:my_3.2mm_M3_Pad" H 10400 5500 50  0001 C CNN
F 3 "" H 10400 5500 50  0001 C CNN
	1    10400 5500
	1    0    0    -1  
$EndComp
Wire Wire Line
	10200 4900 10150 4900
Wire Wire Line
	10150 4900 10150 5650
Wire Wire Line
	10200 5100 10150 5100
Connection ~ 10150 5100
Wire Wire Line
	10200 5300 10150 5300
Connection ~ 10150 5300
Wire Wire Line
	10200 5500 10150 5500
Connection ~ 10150 5500
$Comp
L GND #PWR08
U 1 1 58EFDEB8
P 10150 5650
F 0 "#PWR08" H 10150 5400 50  0001 C CNN
F 1 "GND" H 10150 5500 50  0000 C CNN
F 2 "" H 10150 5650 50  0001 C CNN
F 3 "" H 10150 5650 50  0001 C CNN
	1    10150 5650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7050 1100 9750 1100
Wire Wire Line
	9750 2100 7050 2100
$Comp
L VCC #PWR09
U 1 1 58EE7927
P 3800 6150
F 0 "#PWR09" H 3800 6000 50  0001 C CNN
F 1 "VCC" H 3800 6300 50  0000 C CNN
F 2 "" H 3800 6150 50  0001 C CNN
F 3 "" H 3800 6150 50  0001 C CNN
	1    3800 6150
	1    0    0    -1  
$EndComp
$Comp
L +BATT #PWR010
U 1 1 58EE78D6
P 4300 6150
F 0 "#PWR010" H 4300 6000 50  0001 C CNN
F 1 "+BATT" H 4300 6290 50  0000 C CNN
F 2 "" H 4300 6150 50  0001 C CNN
F 3 "" H 4300 6150 50  0001 C CNN
	1    4300 6150
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 6150 4300 6300
$Comp
L PWR_FLAG #FLG011
U 1 1 58EE78CF
P 4300 6300
F 0 "#FLG011" H 4300 6375 50  0001 C CNN
F 1 "PWR_FLAG" H 4300 6450 50  0000 C CNN
F 2 "" H 4300 6300 50  0001 C CNN
F 3 "" H 4300 6300 50  0001 C CNN
	1    4300 6300
	-1   0    0    1   
$EndComp
Connection ~ 4300 6750
Wire Wire Line
	4300 6700 4300 7000
Wire Wire Line
	3800 6150 3800 6300
$Comp
L GND #PWR012
U 1 1 58C0744A
P 4300 7000
F 0 "#PWR012" H 4300 6750 50  0001 C CNN
F 1 "GND" H 4300 6850 50  0000 C CNN
F 2 "" H 4300 7000 50  0001 C CNN
F 3 "" H 4300 7000 50  0001 C CNN
	1    4300 7000
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG013
U 1 1 58C057C2
P 3800 6300
F 0 "#FLG013" H 3800 6375 50  0001 C CNN
F 1 "PWR_FLAG" H 3800 6450 50  0000 C CNN
F 2 "" H 3800 6300 50  0001 C CNN
F 3 "" H 3800 6300 50  0001 C CNN
	1    3800 6300
	-1   0    0    1   
$EndComp
$Comp
L PWR_FLAG #FLG014
U 1 1 58C0578A
P 4300 6700
F 0 "#FLG014" H 4300 6775 50  0001 C CNN
F 1 "PWR_FLAG" H 4300 6850 50  0000 C CNN
F 2 "" H 4300 6700 50  0001 C CNN
F 3 "" H 4300 6700 50  0001 C CNN
	1    4300 6700
	1    0    0    -1  
$EndComp
Text Notes 1400 2050 0    60   ~ 0
This is the loading to use the board just as a switch - without any regulation.\nComponents not shown are not loaded.\nR6 (not loaded in the regulator configuration) provides the signal path.\nNote that for the switch configuration, enable is active low - not active high. 
$Comp
L R R6
U 1 1 59190723
P 6800 4650
F 0 "R6" V 6880 4650 50  0000 C CNN
F 1 "0R" V 6800 4650 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6730 4650 50  0001 C CNN
F 3 "" H 6800 4650 50  0001 C CNN
	1    6800 4650
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6250 4650 6650 4650
Text Label 6350 4650 0    60   ~ 0
direct
$Comp
L CONN_01X01 J10
U 1 1 59190B57
P 10100 2350
F 0 "J10" H 10100 2450 50  0000 C CNN
F 1 "CONN_01X01" V 10300 2350 50  0000 C CNN
F 2 "connectors:small_SWP_single_1-5mmDrill" H 10100 2350 50  0001 C CNN
F 3 "" H 10100 2350 50  0001 C CNN
	1    10100 2350
	-1   0    0    1   
$EndComp
$EndSCHEMATC