EESchema Schematic File Version 4
LIBS:pwm-cache
EELAYER 26 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L pspice:0 #GND03
U 1 1 5C30E0E1
P 3650 3750
F 0 "#GND03" H 3650 3650 50  0001 C CNN
F 1 "0" H 3650 3650 50  0000 C CNN
F 2 "" H 3650 3750 50  0001 C CNN
F 3 "~" H 3650 3750 50  0001 C CNN
	1    3650 3750
	1    0    0    -1  
$EndComp
Wire Wire Line
	3650 3750 3650 2850
$Comp
L pspice:C C2
U 1 1 5C30E217
P 5000 3350
F 0 "C2" H 5178 3396 50  0000 L CNN
F 1 "1.5n" H 5178 3305 50  0000 L CNN
F 2 "" H 5000 3350 50  0001 C CNN
F 3 "~" H 5000 3350 50  0001 C CNN
	1    5000 3350
	1    0    0    -1  
$EndComp
$Comp
L pspice:0 #GND04
U 1 1 5C30E289
P 5000 3750
F 0 "#GND04" H 5000 3650 50  0001 C CNN
F 1 "0" H 5000 3650 50  0000 C CNN
F 2 "" H 5000 3750 50  0001 C CNN
F 3 "~" H 5000 3750 50  0001 C CNN
	1    5000 3750
	1    0    0    -1  
$EndComp
Wire Wire Line
	5000 3600 5000 3750
$Comp
L pspice:C C1
U 1 1 5C30E7DA
P 2900 3350
F 0 "C1" H 3078 3396 50  0000 L CNN
F 1 "10n" H 3078 3305 50  0000 L CNN
F 2 "" H 2900 3350 50  0001 C CNN
F 3 "~" H 2900 3350 50  0001 C CNN
	1    2900 3350
	1    0    0    -1  
$EndComp
Wire Wire Line
	3150 2450 2900 2450
$Comp
L pspice:0 #GND02
U 1 1 5C30E840
P 2900 3750
F 0 "#GND02" H 2900 3650 50  0001 C CNN
F 1 "0" H 2900 3650 50  0000 C CNN
F 2 "" H 2900 3750 50  0001 C CNN
F 3 "~" H 2900 3750 50  0001 C CNN
	1    2900 3750
	1    0    0    -1  
$EndComp
Wire Wire Line
	2900 3600 2900 3750
Wire Wire Line
	4150 2650 4300 2650
Wire Wire Line
	4300 3050 2750 3050
Wire Wire Line
	2900 2450 2900 3100
Wire Wire Line
	3150 2650 3050 2650
Wire Wire Line
	4300 2650 4300 3050
Connection ~ 4300 3050
Wire Wire Line
	5000 3050 5000 3100
$Comp
L pspice:VSOURCE V1
U 1 1 5C310584
P 1950 2700
F 0 "V1" H 2178 2746 50  0000 L CNN
F 1 "dc 12" H 2178 2655 50  0000 L CNN
F 2 "" H 1950 2700 50  0001 C CNN
F 3 "~" H 1950 2700 50  0001 C CNN
	1    1950 2700
	1    0    0    -1  
$EndComp
$Comp
L Device:R R1
U 1 1 5C3105FA
P 4900 2000
F 0 "R1" H 4970 2046 50  0000 L CNN
F 1 "1k" H 4970 1955 50  0000 L CNN
F 2 "" V 4830 2000 50  0001 C CNN
F 3 "~" H 4900 2000 50  0001 C CNN
	1    4900 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	4900 2150 4900 2450
Wire Wire Line
	4900 1850 4900 1750
Wire Wire Line
	1950 1750 1950 2400
$Comp
L pspice:0 #GND01
U 1 1 5C31228C
P 1950 3750
F 0 "#GND01" H 1950 3650 50  0001 C CNN
F 1 "0" H 1950 3650 50  0000 C CNN
F 2 "" H 1950 3750 50  0001 C CNN
F 3 "~" H 1950 3750 50  0001 C CNN
	1    1950 3750
	1    0    0    -1  
$EndComp
Wire Wire Line
	1950 3000 1950 3750
$Comp
L pspice:0 #GND05
U 1 1 5C313B8F
P 5850 3750
F 0 "#GND05" H 5850 3650 50  0001 C CNN
F 1 "0" H 5850 3650 50  0000 C CNN
F 2 "" H 5850 3750 50  0001 C CNN
F 3 "~" H 5850 3750 50  0001 C CNN
	1    5850 3750
	1    0    0    -1  
$EndComp
Text Notes 1500 4400 0    50   ~ 0
.tran 1u 10m 9m uic
Wire Wire Line
	3650 1750 4900 1750
Connection ~ 3650 1750
Wire Wire Line
	3650 2050 3650 1750
Wire Wire Line
	3050 1750 3650 1750
Connection ~ 3050 1750
Wire Wire Line
	3050 1750 3050 2650
Wire Wire Line
	2750 2250 2750 3050
Wire Wire Line
	2750 2250 3150 2250
$Comp
L Timer:NE555 U1
U 1 1 5C30DFB0
P 3650 2450
F 0 "U1" H 3850 2900 50  0000 C CNN
F 1 "NE555" H 3900 2800 50  0000 C CNN
F 2 "" H 3650 2450 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/ne555.pdf" H 3650 2450 50  0001 C CNN
F 4 "X" H 3650 2450 50  0001 C CNN "Spice_Primitive"
F 5 "555C" H 3650 2450 50  0001 C CNN "Spice_Model"
F 6 "Y" H 3650 2450 50  0001 C CNN "Spice_Netlist_Enabled"
F 7 "libraries/NE555.lib" H 3650 2450 50  0001 C CNN "Spice_Lib_File"
	1    3650 2450
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 3050 5000 3050
Wire Wire Line
	4400 2750 4850 2750
$Comp
L Device:D D1
U 1 1 5C30F839
P 5300 2600
F 0 "D1" V 5346 2521 50  0000 R CNN
F 1 "1N4001" V 5255 2521 50  0000 R CNN
F 2 "" H 5300 2600 50  0001 C CNN
F 3 "~" H 5300 2600 50  0001 C CNN
F 4 "D" H 5300 2600 50  0001 C CNN "Spice_Primitive"
F 5 "D" H 5300 2600 50  0001 C CNN "Spice_Model"
F 6 "Y" H 5300 2600 50  0001 C CNN "Spice_Netlist_Enabled"
F 7 "2 1" H 5300 2600 50  0001 C CNN "Spice_Node_Sequence"
F 8 "libraries/diode.lib" H 5300 2600 50  0001 C CNN "Spice_Lib_File"
	1    5300 2600
	0    -1   -1   0   
$EndComp
Connection ~ 4900 2450
Wire Wire Line
	4900 2450 5300 2450
Connection ~ 5000 3050
$Comp
L Device:D D2
U 1 1 5C30F879
P 4400 2600
F 0 "D2" V 4354 2679 50  0000 L CNN
F 1 "1N4001" V 4445 2679 50  0000 L CNN
F 2 "" H 4400 2600 50  0001 C CNN
F 3 "~" H 4400 2600 50  0001 C CNN
F 4 "D" H 4400 2600 50  0001 C CNN "Spice_Primitive"
F 5 "D" H 4400 2600 50  0001 C CNN "Spice_Model"
F 6 "Y" H 4400 2600 50  0001 C CNN "Spice_Netlist_Enabled"
F 7 "2 1" H 4400 2600 50  0001 C CNN "Spice_Node_Sequence"
F 8 "libraries/diode.lib" H 4400 2600 50  0001 C CNN "Spice_Lib_File"
	1    4400 2600
	0    1    1    0   
$EndComp
Wire Wire Line
	4150 2450 4400 2450
Text Notes 1500 4500 0    50   ~ 0
.param w=0.5 rtot=100k
Wire Wire Line
	4150 2250 5550 2250
$Comp
L Transistor_FET:IRF540N Q1
U 1 1 5C313647
P 5750 2250
F 0 "Q1" H 5955 2296 50  0000 L CNN
F 1 "IRF540N" H 5955 2205 50  0000 L CNN
F 2 "Package_TO_SOT_THT:TO-220-3_Vertical" H 6000 2175 50  0001 L CIN
F 3 "http://www.irf.com/product-info/datasheets/data/irf540n.pdf" H 5750 2250 50  0001 L CNN
F 4 "X" H 5750 2250 50  0001 C CNN "Spice_Primitive"
F 5 "irf540" H 5750 2250 50  0001 C CNN "Spice_Model"
F 6 "Y" H 5750 2250 50  0001 C CNN "Spice_Netlist_Enabled"
F 7 "libraries/irf540.lib" H 5750 2250 50  0001 C CNN "Spice_Lib_File"
F 8 "2 1 3" H 5750 2250 50  0001 C CNN "Spice_Node_Sequence"
	1    5750 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	5000 2900 5000 3050
Wire Wire Line
	5150 2750 5300 2750
$Comp
L Device:R_POT RV1
U 1 1 5C31652B
P 5000 2750
F 0 "RV1" V 4793 2750 50  0000 C CNN
F 1 "100k" V 4884 2750 50  0000 C CNN
F 2 "" H 5000 2750 50  0001 C CNN
F 3 "~" H 5000 2750 50  0001 C CNN
F 4 "X" H 5000 2750 50  0001 C CNN "Spice_Primitive"
F 5 "pot_lin" H 5000 2750 50  0001 C CNN "Spice_Model"
F 6 "Y" H 5000 2750 50  0001 C CNN "Spice_Netlist_Enabled"
F 7 "1 3 2" H 5000 2750 50  0001 C CNN "Spice_Node_Sequence"
F 8 "libraries/pot_lin.lib" H 5000 2750 50  0001 C CNN "Spice_Lib_File"
	1    5000 2750
	0    1    1    0   
$EndComp
Text Label 4200 2250 0    50   ~ 0
555_out
Wire Wire Line
	6800 1750 7300 1750
$Comp
L Device:D D3
U 1 1 5C31502E
P 6800 2050
F 0 "D3" V 6754 2129 50  0000 L CNN
F 1 "1N4001" V 6845 2129 50  0000 L CNN
F 2 "" H 6800 2050 50  0001 C CNN
F 3 "~" H 6800 2050 50  0001 C CNN
F 4 "D" H 6800 2050 50  0001 C CNN "Spice_Primitive"
F 5 "D" H 6800 2050 50  0001 C CNN "Spice_Model"
F 6 "Y" H 6800 2050 50  0001 C CNN "Spice_Netlist_Enabled"
F 7 "2 1" H 6800 2050 50  0001 C CNN "Spice_Node_Sequence"
F 8 "libraries/diode.lib" H 6800 2050 50  0001 C CNN "Spice_Lib_File"
	1    6800 2050
	0    1    1    0   
$EndComp
Connection ~ 4400 2450
Wire Wire Line
	4400 2450 4900 2450
Connection ~ 6800 1750
Wire Wire Line
	6800 1750 6800 1900
Wire Wire Line
	6800 2200 6800 2300
Connection ~ 6800 2300
Wire Wire Line
	6800 2300 7300 2300
Wire Wire Line
	5850 2050 6450 2050
Wire Wire Line
	6450 2050 6450 2300
Wire Wire Line
	4900 1750 6800 1750
Connection ~ 4900 1750
Wire Wire Line
	6450 2300 6800 2300
Wire Wire Line
	1950 1750 3050 1750
Wire Notes Line
	2600 1500 6400 1500
Wire Notes Line
	6400 1500 6400 4100
Wire Notes Line
	6400 4100 2600 4100
Wire Notes Line
	2600 4100 2600 1500
Text Notes 2600 1450 0    50   ~ 0
PWM
$Comp
L Device:R R2
U 1 1 5C3C7117
P 7300 2050
F 0 "R2" H 7370 2096 50  0000 L CNN
F 1 "10" H 7370 2005 50  0000 L CNN
F 2 "" V 7230 2050 50  0001 C CNN
F 3 "~" H 7300 2050 50  0001 C CNN
	1    7300 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	7300 1750 7300 1900
Wire Wire Line
	7300 2300 7300 2200
Wire Wire Line
	5850 2450 5850 3750
Wire Notes Line
	6500 1500 7600 1500
Wire Notes Line
	7600 1500 7600 4100
Wire Notes Line
	7600 4100 6500 4100
Wire Notes Line
	6500 4100 6500 1500
Wire Notes Line
	2500 4100 2500 1500
Wire Notes Line
	1500 1500 1500 4100
Wire Notes Line
	1500 4100 2500 4100
Wire Notes Line
	1500 1500 2500 1500
Text Notes 1500 1450 0    50   ~ 0
SOURCE
Text Notes 6500 1450 0    50   ~ 0
LOAD
Text Label 1950 3300 0    50   ~ 0
#1
Text Label 1950 1750 0    50   ~ 0
2
$EndSCHEMATC