Power board

LiU-SeeGoals·Electronics·pwr_v3/pwr_v3.kicad_pcb

About the Power board

Power board is an open source PCB design by LiU-SeeGoals, published on GitHub. It is a 4-layer board measuring 166 × 166 mm, with 53 components from 32 distinct parts.

Other key parts include the LM2576S-5, LM2576S-12, LM2576S-3.3 and LSM6DSLTR. By type, the board carries 10 capacitors, 7 resistors, 4 ICs, 4 modules, 4 LEDs and 4 diodes.

From the project

Schematics etc.

Motor driver has 5 pins to the devboard, 2 power pins and 8 pins to the motor

Capacitors and components change capacitance, inductance, etc as the voltage changes. This was not know during the making of driver.

Capacitors should be closer to the pins they are filtering.

There is a risk of overheating if the motors get stuck for a longer time, adding some cooling would be nice.

Main components on the Power board

LM2576S-5 LM2576S-12 LM2576S-3.3 LSM6DSLTR

Power board bill of materials (BOM)

53 components, 32 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	LM2576S-5	TO-263-5_TabPin3	U1
1	LM2576S-12	TO-263-5_TabPin3	U2
1	LM2576S-3.3	TO-263-5_TabPin3	U3
1	LSM6DSLTR	LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y	U4
4	CONN_02X03_COUNTER_CLOCKWISE Conn_02x03_Counter_Clockwise	PinSocket_2x03_P2.54mm_Vertical	M1, M2, M3, M4
1	BUK9832-55A	TO-220-3_Vertical	Q1
1	BSS84	SOT-23	Q2
1	XT60	AMASS_XT60-M_1x02_P7.20mm_Vertical	BAT1
1	CONN_01X02 Conn_01x02	PinHeader_1x02_P2.54mm_Vertical	BUZZER1
1	Buzzer	Buzzer_9mm_P5_D1p95	BZ1
1	Conn_01x02	PinHeader_1x02_P2.54mm_Vertical	IR_1
1	Conn_02x04_Counter_Clockwise	PinSocket_2x04_P2.54mm_Vertical	J_RF1
8	100	R_0402_1005Metric	RK1, RK5, RK6, RK7, RK8, RK11, RK12, RK13
2	10K 10k	R_0402_1005Metric	RK9, RK10
1	RED LED	LED_0603_1608Metric	LED1
2	BLUE LED	LED_0603_1608Metric	LED2, LED4
1	WHITE LED	LED_0603_1608Metric	LED3
3	1N5821	D_DO-201AD_P15.24mm_Horizontal	D1, D2, D3
1	D	D_DO-201AD_P15.24mm_Horizontal	D4
2	100UH 100uH	L_Sunlord_MWSA1206S-101	L1, L3

Show 12 more

Qty	Part	Footprint	Refs
1	150UH 150uH	L_TaiTech_TMPC1265_13.5x12.5mm	L2
3	100uF	CP_Elec_8x10	C1_1, C1_2, C1_3
2	100nF	C_0402_1005Metric	C1_I1, C2_I1
1	8.2p	C_1206_3216Metric	C1_R1
1	1000uF	CP_Elec_8x10.5	C2_1
2	1000uF	CP_Elec_10x10.5	C2_2, C2_3
1	10uF	C_1206_3216Metric	C2_R1
2	1k	R_0603_1608Metric	R1_I1, R2_I1
1	62	R_0603_1608Metric	R3
2	16.2	R_0603_1608Metric	R4, R6
1	15.4	R_0603_1608Metric	R5
1	100	R_1206_3216Metric	R7

Power board design files

The KiCad project lives in the LiU-SeeGoals/Electronics repository on GitHub; these links point at the commit this page was built from.

Layoutpwr_v3/pwr_v3.kicad_pcb
Schematicpwr_v3/pwr_v3.kicad_sch
BOMpwr_v3/Docs and Images/pwr_v3_bom.csv

Power board: common questions

How big is the Power board?

The Power board measures 166 × 166 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Power board?

53 components, from 32 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Power board design files?

From the LiU-SeeGoals/Electronics repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.