2 layers100 × 87.5 mm Driver, the printed circuit board in 3D

Driver

Almost everything in my journey to build my own DRSSTCs

Size: 100 × 87.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 127
Nets: 70
Pads: 358
Tracks, vias: 452, 15
Pours: 2
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 23 Jul 2025
Updated: 5 May 2026

Overview

Driver is an open-source printed circuit board by hnaderi, from the hnaderi/drsstc repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 100 × 87.5 mm with 127 parts on 70 nets, routed with 452 tracks and 15 vias.

It is built around the TC4427EOA, 74HC14 and 74HC74D, with the LM311, LT1016CD and IRFU024NPBF among its other parts. Its parts include 38 capacitors, 32 resistors, 16 diodes, 14 connectors and 9 ICs.

Main components

README

README.md

DRSSTC

This is a work in progress...

Parts

127

Qty	Value	Footprint	References
16	100n	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C6, C8, C9, C10, C11, C18, C19, C20, C22, C25, C28, C29, C31, C33, C36, C38
11	1k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R2, R3, R7, R8, R10, R12, R17, R18, R23, R32, R33
8	10u	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C3, C13, C14, C15, C16, C26, C27, C32
6	1N4148	Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp	D3, D4, D5, D7, D8, D12
6	1N5819	Diode_THT:D_DO-41_SOD81_P2.54mm_Vertical_KathodeUp	D6, D9, D10, D11, D13, D14
4	330	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R25, R26, R27, R28
4	Body	MountingHole:MountingHole_3.2mm_M3_DIN965_Pad_TopBottom	H1, H2, H3, H4
4	IRFU024NPBF	Library:TO-251-3-1EP_Horizontal_TabDown	Q4, Q5, Q8, Q9
4	IRFU9024N	Library:TO-251-3-1EP_Horizontal_TabDown	Q2, Q3, Q6, Q7
3	1n	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C12, C23, C35
3	2u	Capacitor_THT:C_Rect_L7.2mm_W7.2mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C17, C30, C34
3	470	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R29, R34, R36
3	470u	Capacitor_THT:CP_Radial_D10.0mm_P5.00mm	C2, C4, C7
2	10	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical	R19, R24
2	100k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R11, R30
2	1N4007	Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp	D15, D16
2	5.1	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R13, R21
2	GDT	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	J4, J11
2	TC4427	Package_DIP:DIP-8_W7.62mm	U6, U9
1	1	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R4
1	1.8k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R16
1	100k	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical	R20
1	10k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R9
1	10k	Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical	RV1
1	10n	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C5
1	150p	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C24
1	1k	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical	R35
1	1u	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C37
1	2.2u	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C1
1	4.7u	Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm	C21
1	51	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical	R31
1	560k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R1
1	7400	Package_DIP:DIP-14_W7.62mm	U4
1	74HC14	Package_DIP:DIP-14_W7.62mm	U3
1	74HC74	Package_DIP:DIP-14_W7.62mm	U7
1	8.2v	Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp	D1
1	BAT43	Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp	D2
1	BC547	Package_TO_SOT_THT:TO-92_Inline_Wide	Q1
1	Conn_02x03_Odd_Even	Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical	J5
1	DC Jack	Library:BarrelJack_Horizontal	J1
1	Drive TP	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J6
1	Feedback CT	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	J10
1	Feedback TP	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J14
1	Fuse	Fuse:Fuse_Littelfuse_395Series	F1
1	Interrupter	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J3
1	LM311	Package_DIP:DIP-8_W7.62mm	U5
1	LM7805_TO220	Package_TO_SOT_THT:TO-220-3_Vertical	U2
1	LM7809_TO220	Package_TO_SOT_THT:TO-220-3_Vertical	U1
1	LOGO	LOGO	G***
1	LT1016	Package_DIP:DIP-8_W7.62mm	U10
1	OC TP	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J7
1	OCD CT	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	J9
1	Phase lead	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J8
1	Signal TP	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J13
1	Status	Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical	J12
1	ext	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical	R22
1	~	Library:universal tunable inductor	L1
1	~	Library:hnaderi-opl530-rx	RX1
1	~	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	J2

Questions

How big is the Driver PCB?

It measures 100 × 87.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Driver use?

127 parts, built around the TC4427EOA, 74HC14, 74HC74D and LM311. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Driver KiCad files?

From the hnaderi/drsstc repository on GitHub, at the commit this page was made from: the board is driver/driver.kicad_pcb and its schematic driver/driver.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Driver design in my own project?

Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/hnaderi-drsstc" title="Driver in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/hnaderi-drsstc.jpg" alt="Driver" width="1200" height="900">

A picture that opens the board, for a README

[![Driver](https://pcbkit.io/embed/boards/hnaderi-drsstc.jpg?size=s)](https://pcbkit.io/boards/hnaderi-drsstc)

Source

Repository: hnaderi/drsstc
Board file: driver/driver.kicad_pcb
Commit: 2a1e013
Licence: CC0-1.0

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