Storager

Ongoing

STD Storager

Analog

License: GPL 3.0

Mode:

Editors' pick

Update time： 2022-05-04 09:23:23

Creation time： 2021-04-11 20:39:02

Description

* Open-source hardware.
* Low price: less than 3 USD.
* 10-12 minutes to put 300mAh 1S battery to storage.
* 1.8A full load current.
* 4 mA idle current.
* Status LED indicator.
* 85x25 mm board size.

https://youtu.be/8HMitcrjfug

Design Drawing

schematic diagram

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Schematic
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PCB

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Board
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	4.7uF	C1,C4	C0603	2
2	100nF	C2	C0603	1
3	1uF	C3	C0603	1
4	B5819W	D1	SOD-123_L2.7-W1.6-LS3.7-RD-1	1
5	KT-0603R	LED1	LED0603-R-RD	1
6	19-217/GHC-YR1S2/3T	LED2	LED0603-R-RD	1
7	Battery	P1,P2	FLAT_VBAT	2
8	AO3400A	Q1	SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR	1
9	Not installed	R0	R0603	1
10	10Ω	R1,R13	R0603	2
11	330	R2,R15	R0603	2
12	100K	R3,R9	R0603	2
13	4.7K	R4	R0603	1
14	2.2K	R5	R0603	1
15	3.3K	R6,R8,R11,R12,R16	R0603_NEW	5
16	330K	R7	R0603	1
17	10K	R10,R14	R0603	2
18	1K	R17	R0603	1
19	4.7 10w	R20,R21	SQP-10_NO_SILK	2
20	CJ431	U1	SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR	1
21	LM358DR2G	U2	SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL	1