Accumulator Board

formulaslug·fs-2-schematics·Acc_Board/Acc_Board.kicad_pcb

Accumulator Board layout, top view — open source board by formulaslug

About the Accumulator Board

Accumulator Board is an open source PCB design by formulaslug, published on GitHub. It is a 2-layer board measuring 139.7 × 88.9 mm, with 105 components from 75 distinct parts.

Other key parts include the ISO1050DUB, NUCLEO-L432KC, LM555N, PQDE6W-Q110-S5-H-D and R-78B5.0-2.0. By type, the board carries 28 resistors, 19 test points, 18 capacitors, 14 ICs, 11 connectors and 7 diodes.

From the project

Electrical design repository for the FS-2 racecar

1) First, download KiCAD for your specific OS

2) Next, make sure you have Git installed.

GitHub Desktop If you are not tech savvy Git If you are tech savvy 😎

If you installed GitHub desktop, create an account and close the repository. I recommend cloning the repository into your documents folder.

How to clone repositories on GitHub desktop

The repository url is: https://github.com/formulaslug/fs-2-schematics

Accumulator Board, from the project README — From the project README

Main components on the Accumulator Board

ISO1050DUB NUCLEO-L432KC LM555N PQDE6W-Q110-S5-H-D R-78B5.0-2.0 TLP3122AE LM7809_TO220 LTC6820 HEF4093B MCP6004

Accumulator Board bill of materials (BOM)

105 components, 75 distinct parts.

Qty	Part	Footprint	Refs
1	ISO1050DUB	SOP-8_6.62x9.15mm_P2.54mm	U1
1	NUCLEO-L432KC	MODULE_NUCLEO-L432KC	U2
1	LM555N	DIP-8_W7.62mm	U3
1	PQDE6W-Q110-S5-H-D	PQDE6W-Q110-S5-H-D_CUI	U4
1	R-78B5.0-2.0	Converter_DCDC_RECOM_R-78B-2.0_THT	U5
5	TLP3122AE	OptoCoupler 6-SOP	U6, U9, U11, U14, U16
1	LM7809_TO220	TO-220-3_Vertical	U8
1	LTC6820	MSOP-16_[LTC6820]_10_thou_compat	U12
1	HEF4093B	SOIC-14_3.9x8.7mm_P1.27mm	U13
1	MCP6004	TSSOP14_MC_MCH	U15
3	STS6NF20V	SO-8_STM	Q2, Q3, Q4
1	AIRs Power	MOLEX_1053091204	J1
1	IsoSPI	MOLEX_1053091202	J2
1	IMD BAT	MOLEX_1053091202	J3
1	HV Power	MOLEX_1053091204	J4
1	HVIL	MOLEX_1053091204	J5
1	IMD	MOLEX_1053091203	J6
1	Current Sensor	MOLEX_1053091204	J7
1	Fans	MOLEX_1053091206	J8
1	Shutdown IL	MOLEX_1053091202	J9

Show 55 more

Qty	Part	Footprint	Refs
1	Precharge Resistor	MOLEX_1053091202	J10
1	776087-1	TE_776087-1	J12
1	G5PZ-1A-X DC12	G5PZ-1A-X DC12	K1
1	G6BK-1114P-US	Omron G6BK-1114P-US	K2
2	DK1A1B-12V	RELAY_DK2A_PAN	K3, K4
2	GND	TestPoint_Loop_D2.50mm_Drill1.0mm	TP1, TP2
1	P	TestPoint_Loop_D2.50mm_Drill1.0mm	TP3
2	GLV	TestPoint_Loop_D2.50mm_Drill1.0mm	TP4, TP5
1	5V	TestPoint_Loop_D2.50mm_Drill1.0mm	TP6
1	N	TestPoint_Loop_D2.50mm_Drill1.0mm	TP7
1	9V	TestPoint_Loop_D2.50mm_Drill1.0mm	TP8
1	Shutdown_Acc_In	TestPoint_Loop_D2.50mm_Drill1.0mm	TP9
1	Shutdown BMS	TestPoint_Loop_D2.50mm_Drill1.0mm	TP10
1	Shutdown IMD	TestPoint_Loop_D2.50mm_Drill1.0mm	TP11
1	Shutdown IL	TestPoint_Loop_D2.50mm_Drill1.0mm	TP12
1	Shutdown Acc Out	TestPoint_Loop_D2.50mm_Drill1.0mm	TP13
1	AIRS_Final	TestPoint_Loop_D2.50mm_Drill1.0mm	TP14
1	CAN H	TestPoint_Loop_D2.50mm_Drill1.0mm	TP15
1	CAN L	TestPoint_Loop_D2.50mm_Drill1.0mm	TP16
1	BMS_FAULT_5V	TestPoint_Loop_D2.50mm_Drill1.0mm	TP19
1	IMD_FAULT_5V	TestPoint_Loop_D2.50mm_Drill1.0mm	TP20
1	AIRS+GND	TestPoint_Loop_D2.50mm_Drill1.0mm	TP21
5	D	D_2010_5025Metric_Pad1.52x2.65mm_HandSolder	D1, D2, D4, D5, D6
1	LED	LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder	D3
1	1N47xxA	D_DO-41_SOD81_P10.16mm_Horizontal	D7
1	HM2113ZNL	HM2113ZNL	L1
3	10µF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C7, C9
7	100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2, C3, C4, C10, C11, C17, C18
1	15pF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5
1	10nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C6
2	330nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C8, C14
1	1µF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C12
2	C	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C13, C15
1	1uf	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C16
1	120	THS15120RJ	R1
1	1.6k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2
1	560	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3
1	1.5k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4
1	680	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5
1	402	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6
2	22	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R7, R8
3	374	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R9, R10, R21
2	120	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R11, R12
1	3.9k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R13
2	1k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14, R16
2	2k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R15, R17
2	10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R18, R28
1	18k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R19
1	2.4M	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R20
1	665	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R22
1	205	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R23
1	22k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R24
1	6.8K	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R25
1	2.2k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R26
1	200	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R27

Accumulator Board design files

The KiCad project lives in the formulaslug/fs-2-schematics repository on GitHub; these links point at the commit this page was built from.

LayoutAcc_Board/Acc_Board.kicad_pcb
SchematicAcc_Board/Acc_Board.kicad_sch

Accumulator Board: common questions

How big is the Accumulator Board?

The Accumulator Board measures 139.7 × 88.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Accumulator Board?

105 components, from 75 distinct parts. The full bill of materials is listed on this page.

Where can I download the Accumulator Board design files?

From the formulaslug/fs-2-schematics repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Accumulator Board design in my own project?

The repository has no license, so all rights stay with formulaslug. Use it as a reference, and ask the author before reusing the design.

More boards in fs-2-schematics