Mini laser driver

adeboni·laser-projector·2023/hardware/mini_laser_driver/mini_laser_driver.kicad_pcb

Mini laser driver PCB layout, top view — open source board by adeboni

About the Mini laser driver PCB

Mini laser driver is an open source PCB design by adeboni, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 63 × 42 mm, with 48 components from 19 distinct parts.

Other key parts include the C71035, R-78B3.3-2.0 and R-78B7.2-2.0. By type, the board carries 17 resistors, 9 connectors, 7 diodes, 5 capacitors, 3 ICs and 3 transistors.

From the project

This project is for a quadruple laser projection controller, aimed at supporting room-scale projections

Main components on the Mini laser driver

C71035R-78B3.3-2.0R-78B7.2-2.0

Mini laser driver bill of materials (BOM)

48 components, 19 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	C71035 LM324	SOIC-14_3.9x8.7mm_P1.27mm	U1
1	R-78B3.3-2.0	Converter_DCDC_RECOM_R-78B-2.0_THT	U2
1	R-78B7.2-2.0	Converter_DCDC_RECOM_R-78B-2.0_THT	U3
3	BD139	TO-126-3_Vertical	Q1, Q2, Q3
7	Conn_01x02	JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	J1, J2, J3, J4, J5, J6, J7
1	Conn_01x02	PinHeader_1x02_P2.54mm_Vertical	J8
1	Conn_02x03_Odd_Even	PinHeader_2x03_P2.54mm_Vertical	J9
1	G6S-2	Relay_DPDT_Omron_G6S-2	K1
3	10k	Potentiometer_Bourns_3296W_Vertical	RV1, RV2, RV3
7	C81598 1N4148W	D_SOD-123	D1, D2, D3, D4, D5, D6, D7
1	220u	CP_Radial_D10.0mm_P5.00mm	C1
1	C14663 100n	C_0603_1608Metric	C2
3	10u	CP_Radial_D5.0mm_P2.50mm	C3, C4, C5
2	C25804 10k	R_0603_1608Metric	R1, R2
3	C4216 33k	R_0603_1608Metric	R3, R4, R5
3	C21189 0	R_0603_1608Metric	R6, R7, R8
3	C22775 100	R_0603_1608Metric	R9, R10, R11
3	SHUNT1	R_Axial_DIN0204_L3.6mm_D1.6mm_P1.90mm_Vertical	R12, R13, R14
3	SHUNT2	R_Axial_DIN0204_L3.6mm_D1.6mm_P1.90mm_Vertical	R15, R16, R17

Mini laser driver design files

The KiCad project lives in the adeboni/laser-projector repository on GitHub; these links point at the commit this page was built from.

Mini laser driver: common questions

How big is the Mini laser driver PCB?

The Mini laser driver measures 63 × 42 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mini laser driver?

48 components, from 19 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 Mini laser driver design files?

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

Can I use the Mini laser driver design in my own project?

Yes, under the terms of its GPL-3.0 license, which adeboni chose for the repository.

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