PWM_GENERATOR

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STD PWM_GENERATOR

License: Public Domain

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Update time： 2020-10-28 08:07:21

Creation time： 2019-04-17 06:28:32

Description

PWM generator for test 1/4 bridge, half bridge and full bridge power circuits. 1 side PCB was disined for Iron technolodgy. This circuits was accembled and work fine. Note: 78L12 must be change on 7812 if use power > 18V

Design Drawing

schematic diagram

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PCB

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PWM_GENERATOR
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity	BOM_Manufacturer Part
1	100K	R2	16K1-B5K	1	16K1-B5K
2	100nF	C2,C3,C4,C5,C6	CAP-HV-4.5*3.5-P5	5	CD1H104KC9AER1D000
3	10uF	C1	CAP-D4.0XF2.0	1	SK100M035B070A
4	L293NE	U2	DIP-16_300MIL	1	L293NE
5	Header-Male-2.54_2x3	SW1	HDR-3X2/2.54	1	Header-Male-2.54_2x3
6	TJ-L5FYTGHRMBCSFLC4R-A5	LED1	LED-DIP-5.8MM	1	TJ-L5FYTGHRMBCSFLC4R-A5
7	L78L12ACZ-AP	U3	TO-92(TO-92-3)	1	L78L12ACZ-AP
8	L78L05ACZ	U4	TO-92(TO-92-3)	1	L78L05ACZ
9	1N4148TA	D1,D2	DO-35	2	1N4148TA
10	Header-Male-2.54_1x8	X2	210S-1X8P	1	210S-1*8P L=11.6MMGold-plated black
11	Header-Male-2.54_1x2	X1	HDR-2X1/2.54	1	826629-2
12	1N4007	D3	DO-41	1	1N4007
13	NE555	U1	DIP-8	1	NE555L-D08-T
14	1K	R1	AXIAL-0.4	1	-
15	600	R3	AXIAL-0.3	1	MFR0W8F6200A50