Adjustable Lab Power Supply 0-38V / 0-5A

Ongoing

STD Adjustable Lab Power Supply 0-38V / 0-5A

Other_Designs

Power

Power_Module

License: Public Domain

Mode:

Editors' pick

1.6k
0
5
6

Update time： 2024-11-10 14:29:47

Creation time： 2021-05-26 07:25:01

Description

This is a simple adjustable power supply that with a outpun voltage from 0 to 38V and current 0 to 5A, but since this is a LINEAR power supply I highly recommend to use a large heatsink with active cooling in ordwer to use it up to 5 Amps.

Design Drawing

schematic diagram

（ 1 / ）

Schematic
Open in Editor

PCB

（ 1 / ）

PCB_Lab Power Supply 0-38V / 0-5A
Open in Editor
PCB_Lab Power Supply 0-38V / 0-5A_2
Open in Editor

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

BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	GND	GND,+	ONE_O	2
2	IN	VCC	ONE_O	1
3	OUT	-	ONE_O	1
4	BD140	Q9	TO-126-3_L8.0-W3.3-P2.28-L	1	C900680
5	250k	R5	RES-ADJ_3296W	1	C13649
6	25k	R4	RES-ADJ_3296W	1	C13649
7	2SD1047	Q7,Q8	TO-3P-3_L15.8-W4.8-P5.45-L	2	C2688707
8	10uf	C3	CPOL-RADIAL-10UF-25V	1
9	4.7uf	C1	CPOL-RADIAL-10UF-25V	1
10	10k	R7,R10	AXIAL-0.4	2
11	100k	R6	AXIAL-0.4	1
12	1k	R8	AXIAL-0.4	1
13	8.2k	R9	AXIAL-0.4	1
14	3.3k	R11	AXIAL-0.4	1
15	2.2k	R12	AXIAL-0.4	1
16	BC547	Q1,Q2	TO-92-3_L4.8-W3.7-P2.54-R	2	C358533
17	BC557	Q4,Q5,Q6	TO-92(TO-92-3F)-2.54	3	C358539
18	1N4007	D3	DO-204AL_BD2.4-L4.7-P8.70-D1.1-RD	1	C410859
19	2nF	C2	RAD-0.2	1	C19355
20	10V	D2	DO-35F	1
21	2.4V	D1	DO-35F	1
22	0.22 5W	R1,R3	RESISTOR 5W	2
23	0.1 5W	R2	RESISTOR 5W	1
24	10k	PR1	POTENTIOMETER	1	undefined
25	100k	PR2	POTENTIOMETER	1	undefined