Universal vfd psu

ansemjo·chronovfd·sandwich/boards/universal_vfd_psu.kicad_pcb

Universal vfd psu PCB layout, top view — open source board by ansemjo

About the Universal vfd psu PCB

Universal vfd psu is an open source PCB design by ansemjo, published on GitHub under the CERN-OHL-P-2.0 license. It is a board measuring 53 × 30.5 mm, with 28 components from 20 distinct parts.

Other key parts include the LM4871MX/NOPB and LM2733YMF/NOPB. By type, the board carries 13 resistors, 10 capacitors, 2 ICs, 2 diodes and 1 inductor.

It belongs with the displays & leds designs in this gallery.

From the project

hardware project for a clock around a russian ivl2-5/7 vfd and an esp32-wroom module

~~ a vacuum-flourescent display clock project ~~

The first prototype of this clock was built completely on protoboard and can be seen on my Twitter.

This has become my first somewhat complex hardware project and as of now I have assembled multiple printed circuit boards for the "display driver" and the "clock core". After fiddling with Espressif's development framework for a while the assembled hardware now actually works as a clock with internet time synchronization. :)

Universal vfd psu, from the project README — From the project README

Main components on the Universal vfd psu

LM4871MX/NOPBLM2733YMF/NOPB

Universal vfd psu bill of materials (BOM)

28 components, 20 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	LM4871MX/NOPB LM4871MX_NOPB Texas Instruments	SOIC-8_3.9x4.9mm_P1.27mm	U2
1	LM2733YMF/NOPB LM2733YMF Espressif	SOT-23-5	U3
1	1N5819HW-7-F Vishay	D_SOD-123	D1
1	MMSZ4684T1G 3.3V Würth	D_SOD-123	D2
1	LBC3225T100MR 10µH	L_1210_3225Metric_Pad1.42x2.65mm_HandSolder	L1
1	UMK212BBJ475KG-T 2.2µF Samsung	C_0805_2012Metric_Pad1.15x1.40mm_HandSolder	C1
1	UMK212BBJ475KG-T 4.7µF Samsung	C_0805_2012Metric_Pad1.15x1.40mm_HandSolder	C2
1	CC0805JRNPO9BN820 82pF Samsung	C_0805_2012Metric_Pad1.15x1.40mm_HandSolder	C3
1	CC0805KRX7R9BB103 10nF Samsung	C_0805_2012Metric_Pad1.15x1.40mm_HandSolder	C4
2	CL21B105KAFNNNG 1µF Yageo	C_0805_2012Metric_Pad1.15x1.40mm_HandSolder	C5, C10
1	UWX1C100MCL1GB 10µF Samsung	CP_Elec_4x5.4	C6
2	UCD1E470MCL1GS 47µF Samsung	CP_Elec_6.3x5.9	C7, C8
1	CL21B104KACNNNC 100nF Samsung	C_0805_2012Metric_Pad1.15x1.40mm_HandSolder	C9
1	RC0805FR-0747KL 47kΩ Yageo	R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R1
1	RC0805FR-0713KL 13kΩ Yageo	R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R2
1	RC0805FR-07240KL 240kΩ Yageo	R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R3
5	RC0805FR-0710KL 10kΩ Yageo	R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R4, R5, R6, R7, R9
1	RC0805FR-072K2L 2.2kΩ Yageo	R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R8
2	RC1206FR-0710RL 10Ω Yageo	R_1206_3216Metric_Pad1.42x1.75mm_HandSolder	R10, R11
2	RC0805FR-07220RL 220Ω Yageo	R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R12, R13

Universal vfd psu design files

The KiCad project lives in the ansemjo/chronovfd repository on GitHub; these links point at the commit this page was built from.

Universal vfd psu: common questions

How big is the Universal vfd psu PCB?

The Universal vfd psu measures 53 × 30.5 mm and is 1.6002 mm thick.

How many components are on the Universal vfd psu?

28 components, from 20 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 Universal vfd psu design files?

From the ansemjo/chronovfd 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 Universal vfd psu design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which ansemjo chose for the repository.

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