Lab PSU

Ongoing

STD Lab PSU

License: Public Domain

Mode:

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Update time： 2019-03-15 09:29:07

Creation time： 2019-03-15 06:46:45

Description

Lab Power supply design. Switching stage sits above linear stage for low power dissipation across linear stage.

Design Drawing

schematic diagram

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PCB

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BOM

ID	Name	Designator	Footprint	Quantity
1	LM2596T-ADJ/NOPB	U1	TO-220-5(FORMING)	1
2	TRANSFORMER_CENTRE_TAPPED_US	T1	NONE	1
3	470u	C1	CAP-D5.0XF2.0	1
4	47u	C2	CAP-D5.0XF2.0	1
5	1N4448	D1,D2,D3,D4	DO-35	4
6	SIN(0 1 50) AC 240 0	V1	HDR1X2	1
7	L7905CV-DG	U3	TO-220(TO-220-3)	1
8	1u	C3,C4	CAP-D5.0XF2.0	2
9	MBR0520LT1G	D5	SOD-123	1
10	1m	L1	AXIAL-0.4	1
11	1u	C5	CAP-D3.0XF1.5	1
12	LT3080EMS8E#PBF	U4	POWER-SOP8	1
13	0.1R	R1	AXIAL-0.3	1
14	5.1k	R2,R3	AXIAL-0.3	2
15	100k	R4,R5	AXIAL-0.3	2
16	10k	R6,R7	RES-ADJ_3386P	2
17	1k	R9,R10,R8,R11,R12,R13	AXIAL-0.3	6
18	2N3904	Q1	TO-92(TO-92-3)	1
19	LED-3MM	LED1	LED-3MM/2.54	1
20	2N3906	Q2	TO-92(TO-92-3)	1
21	10k	R14	AXIAL-0.3	1
22	MCP6024-EP	U2	DIP14	1