EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:R R?
U 1 1 5E7DCF2F
P 1650 1500
F 0 "R?" V 1443 1500 50  0000 C CNN
F 1 "R" V 1534 1500 50  0000 C CNN
F 2 "" V 1580 1500 50  0001 C CNN
F 3 "~" H 1650 1500 50  0001 C CNN
	1    1650 1500
	0    1    1    0   
$EndComp
$Comp
L Isolator:PC3H4 U?
U 1 1 5E7DDAE3
P 2250 1600
F 0 "U?" H 2250 1925 50  0000 C CNN
F 1 "PC3H4" H 2250 1834 50  0000 C CNN
F 2 "Package_DIP:SMDIP-4_W7.62mm" H 2050 1400 50  0001 L CIN
F 3 "http://www.sharpsme.com/download/pc3h4-epdf" H 2275 1600 50  0001 L CNN
	1    2250 1600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 5E7DE4AF
P 2800 1100
F 0 "R?" H 2870 1146 50  0000 L CNN
F 1 "R" H 2870 1055 50  0000 L CNN
F 2 "" V 2730 1100 50  0001 C CNN
F 3 "~" H 2800 1100 50  0001 C CNN
	1    2800 1100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5E7DEAE8
P 3000 1700
F 0 "#PWR?" H 3000 1450 50  0001 C CNN
F 1 "GND" V 3005 1572 50  0000 R CNN
F 2 "" H 3000 1700 50  0001 C CNN
F 3 "" H 3000 1700 50  0001 C CNN
	1    3000 1700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1250 1500 1500 1500
Wire Wire Line
	1800 1500 1950 1500
Wire Wire Line
	1250 1700 1950 1700
Wire Wire Line
	2800 1250 2800 1500
Wire Wire Line
	2800 1500 2550 1500
Wire Wire Line
	2800 1500 3300 1500
Connection ~ 2800 1500
Wire Wire Line
	2550 1700 3000 1700
Wire Wire Line
	2800 950  2800 650 
$Comp
L power:+28V #PWR?
U 1 1 5E7E0835
P 2800 650
F 0 "#PWR?" H 2800 500 50  0001 C CNN
F 1 "+28V" H 2815 823 50  0000 C CNN
F 2 "" H 3050 700 50  0001 C CNN
F 3 "" H 3050 700 50  0001 C CNN
	1    2800 650 
	1    0    0    -1  
$EndComp
Text Label 3150 1500 0    50   ~ 0
input
$EndSCHEMATC