Biploar power supply

jvedder·Biploar-power-supply-KiCAD

Biploar power supply PCB layout, top view — open source board by jvedder

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About the Biploar power supply PCB

Biploar power supply is an open source PCB design by jvedder, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 70 mm, with 33 components from 13 distinct parts.

Other key parts include the LM317_TO-220 and LM337_TO-220. By type, the board carries 12 resistors, 8 diodes, 6 capacitors, 3 connectors, 2 ICs and 2 fuses.

It belongs with the power & battery designs in this gallery.

From the project

A KiCAD PCB project for a simple linear bipolar power supply (+/-15V) from a 24V single-phase transformer.

Main components on the Biploar power supply

LM317_TO-220 LM337_TO-220

Biploar power supply bill of materials (BOM)

33 components, 13 distinct parts.

Qty	Part	Footprint	Refs
1	LM317_TO-220	TO-220-3_Vertical_Heatsink_19.1x9.7mm	U1
1	LM337_TO-220	TO-220-3_Vertical_Heatsink_19.1x9.7mm	U2
2	Screw #6-32	ScrewTerminal_01x01_#6-32_10mm	J1, J2
1	Conn_01x03	PinHeader_1x03_P2.54mm_Vertical	J4
2	Fuse Holder	FuseHolder_6.8x19.8mm_P3.4x13.5mm_Vetical	F11, F21
6	1N4007T	D_DO-41_SOD81_P10.16mm_Horizontal	D11, D12, D13, D21, D22, D23
2	LED	LED_D5.0mm	D14, D24
2	2200uF	CP_Radial_D16.0mm_P7.50mm	C11, C21
2	1uF	CP_Radial_D5.0mm_P2.00mm	C13, C23
2	100uF	CP_Radial_D10.0mm_P5.00mm	C14, C24
2	249	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R11, R21
4	2.73K	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R12, R14, R22, R24
6	5	R_Axial_L13.1mm_D5.6mm_P20.0mm_Horizontal	R15, R16, R17, R25, R26, R27

Biploar power supply design files

The KiCad project lives in the jvedder/Biploar-power-supply-KiCAD repository on GitHub; these links point at the commit this page was built from.

LayoutBipolar power supply.kicad_pcb
SchematicBipolar power supply.kicad_sch

Biploar power supply: common questions

How big is the Biploar power supply PCB?

The Biploar power supply measures 100 × 70 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Biploar power supply?

33 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Biploar power supply design files?

From the jvedder/Biploar-power-supply-KiCAD repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Biploar power supply design in my own project?

Yes, under the terms of its MIT license, which jvedder chose for the repository.

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