HardLabs

Fan-Speed-Controller

JESDevCom·Fan-Speed-Controller·KiCad/TRIAC.kicad_pcb

Fan-Speed-Controller PCB layout, top view — open source board by JESDevCom

About the Fan-Speed-Controller PCB

Fan-Speed-Controller is an open source PCB design by JESDevCom, published on GitHub under the MIT license. It is a 2-layer board measuring 38 × 39 mm, with 16 components from 15 distinct parts.

By type, the board carries 5 resistors, 3 capacitors, 2 connectors, 1 transistor, 1 fuse and 1 switch.

It belongs with the test & measurement designs in this gallery.

From the project

Hobbyist YLFC700 Fan Speed Controller Using a TRIAC

Part I. Introduction * Re-Engineering a YLFC700 Fan Speed Controller (TRIAC based). This controller was originally sourced from an Xtrodinair Apex 42 Fireplace. The problem with the controller is that the slide potentiometer fails over time (about every 2-years). It fails at the slider's position where the fan runs just below max speed.

Part II. Theory for Failure The potentiometer is rated for 100[mW]. The reason the potentiometer fails is because the 47 [nF] Film capacitor begins to fail from transient voltage spikes after many startups.

Fan-Speed-Controller bill of materials (BOM)

16 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
BTA16-600B
Q1
1
BlackWire
J1
1
WhiteWire
J3
1
507-1993-1-ND‎
Fuse
F1
1
R_POT_10_TO_300K
R_POT_10_to_300k
RV1
1
SW_DIP_X01
SW_DIP_x01
SW1
1
DB3
D1
1
L_Core_Ferrite
L1
1
47N
47n
C1
2
100N
100n
C2, C3
1
2.4K
2.4k
R1
1
270K
270k
R2
1
18K
18k
R3
1
240K
240k
R4
1
24
R5

Fan-Speed-Controller design files

The KiCad project lives in the JESDevCom/Fan-Speed-Controller repository on GitHub; these links point at the commit this page was built from.

Fan-Speed-Controller: common questions

How big is the Fan-Speed-Controller PCB?

The Fan-Speed-Controller measures 38 × 39 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fan-Speed-Controller?

16 components, from 15 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 Fan-Speed-Controller design files?

From the JESDevCom/Fan-Speed-Controller repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Fan-Speed-Controller design in my own project?

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

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