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Multi-switch Lights Control

For corridors and hallways

Multi-switch Lights Control
Complex electrical wiring is required if a single load like hallway or corridor lighting is to be switched on and off by any one of a large number of switches. Here we propose a workaround using a DIY thyristor.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component List
R1,R2 = 510Ohm 1%, 0.25W
R3 = 4.7kOhm 5%, 0.25W
R4 = 2.0kOhm 1%, 0.25W
R5 = 620Ohm 1%, 0.5W
R6,R7 = 470kOhm 5% 0.25W
C1 = 1000µF 20% 25V, 0.2’’ pitch, diam. 10mm max.
C2 = 3.3µF 20% 100V, 0.1’’ pitch, diam. 6.3mm max.
C3 = 330nF 20% 275VAC, Class X2, 15 or 22.5mm pitch, width 11mm max.
C4 = 220nF 20% 275VAC, Class X2, 15 or 22.5mm pitch, width 8mm max.*
B1 = W06MG, bridge rectifier, 600Vpiv, 1.5A (WOBM)
D1,D2 = 1N4148
D3 = BZX55C15, 15V zener diode, 0.5W, DO-35
T1 = BC547B
T2 = BC557B
K1,LA1 = 2-way PCB mount screw terminal block, 7.5mm pitch
RE1 = relay, G6DS-1AH 12DC, PCB mount, SPNO, coil 12VDC / 10mA, contact 250VAC / 5A
PCB # 130179-1 v1.1
* use with 115VAC only

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