2 layers99 × 100 mm Lipo Storage Discharger 2x, the printed circuit board in 3D

Lipo Storage Discharger 2x

KaeptnBalu/Arduino_Lipo_Storage_Discharger15

Arduino controlled lipo battery storage discharger with current measurement and current control

Size: 99 × 100 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 84
Nets: 51
Pads: 262
Tracks, vias: 490, 38
Pours: 10
Routed: Yes
KiCad: KiCad 4
Created: 11 Nov 2016
Updated: 7 Dec 2016

Overview

Lipo Storage Discharger 2x is an open-source printed circuit board by KaeptnBalu, from the KaeptnBalu/Arduino_Lipo_Storage_Discharger repository on GitHub. It is a 2-layer board of 99 × 100 mm with 84 parts on 51 nets, routed with 490 tracks and 38 vias.

It is built around the PSMN4R3-30PL. Its parts include 24 resistors, 10 ICs, 8 capacitors, 4 diodes and 4 connectors. It belongs with the power boards of this library.

Main components

PSMN4R3-30PL
TO-220AB-55℃~+175℃ 1 N-channel 1.7V 100A 103W 2.4nF 240pF 3.5mΩ@10V 30V 41.5nC 500pF N-Channel ±20V TO-220AB MOSFETs ROHSNexperiaMOSFETs

README

README.md

Arduino_Lipo_Storage_Discharger

Arduino controlled lipo battery storage discharger with current measurement and current control.

This device can discharge lipo and liion batterys to storage voltage without external power supply. It can handle 2-6s lipos (8.4 - 25.2V) and can draw up to about 10A continues. (Max 140W, with 4 light bulbs) The current can be controlled by the potentiometer.

The oled display will show:

current in A
battery voltage
each cell voltage
total discharged current in mAh
discharge time

For the discharging load 4 pieces 12V 35w G4 halogen bulbs will be used. When the storage voltage is reached it will disconnect the load and the buzzer will beep every few seconds.

If you forget to disconnect the Lipo battery after discharging and the voltage drops below 3.75V per cell it will go to a low power consumption mode and beep only every few minutes.

Category and platform

Power

Project files

Show this board on your page

https://pcbkit.io/boards/KaeptnBalu/Arduino_Lipo_Storage_Discharger

The board's own page, for a message or a post.

Source

Repository: KaeptnBalu/Arduino_Lipo_Storage_Discharger
Board file: PCB/Lipo_Storage_Discharger_2x.kicad_pcb
Commit: 48afc2e
Licence: Not stated

Parts

Qty	Value	Footprint	References
10		Measurement_Points:Measurement_Point_Round-TH_Small	, , , , , , , , ,
10	100k	Resistors_SMD:R_0805_HandSoldering	R7, R7, R8, R8, R9, R9, R10, R10, R11, R11
4	100nF	Capacitors_SMD:C_0805_HandSoldering	C2, C2, C4, C4
4	200R	Resistors_SMD:R_0805_HandSoldering	R1, R1, R12, R12
2	10µF	Capacitors_SMD:c_elec_6.3x5.3	C3, C3
2	120k	Resistors_SMD:R_0805_HandSoldering	R2, R2
2	1N5818	Diodes_ThroughHole:Diode_DO-35_SOD27_Horizontal_RM10	D1, D1
2	1nF	Capacitors_SMD:C_0805_HandSoldering	C1, C1
2	22k	Resistors_SMD:R_0805_HandSoldering	R6, R6
2	27k	Resistors_SMD:R_0805_HandSoldering	R5, R5
2	36k	Resistors_SMD:R_0805_HandSoldering	R4, R4
2	4051	Housings_DIP:DIP-16_W7.62mm_LongPads	U5, U5
2	56k	Resistors_SMD:R_0805_HandSoldering	R3, R3
2	7805	pots_own:TO-220_7805_Horizontal	U2, U2
2	ACS712	Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm	U1, U1
2	BAT-	Measurement_Points:Measurement_Point_Square-TH_Big	W4, W4
2	Bat+	Measurement_Points:Measurement_Point_Square-TH_Big	W2, W2
2	Buzzer	Buzzer:Buzzer_12x8.2_RM6.6	U4, U4
2	CONN_01X07	Pin_Headers:Pin_Header_Straight_1x07	P2, P2
2	Display_I2C	Socket_Strips:Socket_Strip_Straight_1x04	P1, P1
2	GND	Measurement_Points:Measurement_Point_Round-TH_Small	W5, W5
2	LED	LEDs:LED-5MM	D2, D2
2	LOAD+	Measurement_Points:Measurement_Point_Square-TH_Big	W1, W1
2	LOAD-	Measurement_Points:Measurement_Point_Square-TH_Big	W3, W3
2	POT	pots_own:RK09K1130A5R	RV1, RV1
2	PSMN4R3-30PL	TO_SOT_Packages_THT:TO-220_Neutral123_Horizontal_LargePads	Q1, Q1
2	T1	Measurement_Points:Measurement_Point_Round-TH_Small	Cell_1, Cell_1
2	arduino_mini	arduino:arduino_mini	U3, U3

The 76 most common of 84 parts.

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Questions

How big is the Lipo Storage Discharger 2x PCB?

It measures 99 × 100 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Lipo Storage Discharger 2x use?

84 parts, built around the PSMN4R3-30PL. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Lipo Storage Discharger 2x KiCad files?

From the KaeptnBalu/Arduino_Lipo_Storage_Discharger repository on GitHub, at the commit this page was made from: the board is PCB/Lipo_Storage_Discharger_2x.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Lipo Storage Discharger 2x design in my own project?

Its repository states no licence, so its author keeps all rights: ask KaeptnBalu before reusing the design.