Digital power supply

Ongoing

STD Digital power supply

License: Public Domain

Mode:

Editors' pick

Update time： 2024-02-20 18:57:36

Creation time： 2018-12-12 19:20:32

Description

Created from schematics found on the Internet https://bestengineeringprojects.com/universal-digital-power-supply-circuit/

Design Drawing

schematic diagram

（ 1 / ）

PCB

（ 1 / ）

The preview image was not generated, please save it again in the editor.

BOM

ID	Name	Designator	Footprint	Quantity
1	1k	R17,R1,R7,R8,R9,R10,R11,R12,R13,R14,R15	AXIAL-0.3	11
2	22k	R2	AXIAL-0.3	1
3	560	R3	AXIAL-0.3	1
4	6.2k	R4,R5	AXIAL-0.3	2
5	10k	R6	AXIAL-0.3	1
6	220	R16	AXIAL-0.3	1
7	4017	IC2	DIP16	1
8	4.7k	VR1,VR2,VR3,VR4,VR5,VR6,VR7,VR8,VR9	RES-ADJ_3296W	9
9	47n	C1,C2,C3,C4	RAD-0.2	4
10	220n	C11	RAD-0.2	1
11	100n	C12,C9,C8	RAD-0.2	3
12	10n	C7	RAD-0.2	1
13	EVQ22705R	SW2,SW1	KEY-6.0*6.0-4	2
14	2200u,25V	C13,C5	CAP-D6.3XF2.5	2
15	10u,25V	C6	CAP-D6.3XF2.5	1
16	1u,25V	C10	CAP-D6.3XF2.5	1
17	LM7912CT	IC3	T03B	1
18	1A 250VAC	F1	2A-3F-250VAC	1
19	220VAC	X1	2 PIN 5 MM CONNECTOR	1
20	220VAC 12-0-12	L1	TRANSFORMER 2 TO 3	1
21	VDG/S-01L blue	DIP1	VDG/S-01L	1
22	1N4007RLG	D1,D2,D3,D4	DO-41	4
23	NE555KIT	U1	DIP08-KIT	1
24	BC548B	T1,T2,T3,T4,T5,T6,T7,T8,T9,T10	TO-92(TO-92-3)	10
25	3mm,Yellow	LED2	LED-3MM/2.54	1
26	3mm,Red	LED1	LED-3MM/2.54	1
27	3mm,Green	LED3,LED4,LED5,LED6,LED7,LED8,LED9,LED10,LED11	LED-3MM/2.54	9
28	LM317	IC4	TO-220	1
29	-12V	J1	BANANA JACK 8MM	1
30	GND	J2	BANANA JACK 8MM	1
31	Vout	J3	BANANA JACK 8MM	1