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RobG

General use triac boards

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I will have few of the following boards available very soon. All boards are 2" x 2".

 

1. Dual triac board - vertically mounted triacs, can be used with insulated or non-insulated triacs, mounting holes for triac and opto-coupler snubbers, space for heatsinks

2. Quad triac board - vertically or horizontally mounted triacs, can be used with insulated or non-insulated triacs, non-inductive loads or snubberless triacs

 

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Boards are here, if anyone is interested, you can buy them from the store in few days.

 

Will post pictures with assembled boards later today.

 

Also, the 2 triac board has one more feature which is not on the original schematic, will make updates later today.

 

 

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Here are few ways to connect wires on the 4ch board:

1. solder wires directly to the board

2. angled terminals (horizontally mounted triacs)

3. plug-in type terminals

 

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The BOM will depend on what you want to use this board for and on the triacs.

 

Here's my BOM (post #2,) for non-inductive loads, light bulbs for example:

 

Triac - BTA16-600BW - you can use BTA06, BTA12, and 600, 800, but use BTA (insulated) and W (snubberless.)

Opto - MOC3023 - this is a random phase opto-triac, good for for dimming/PWM applications. If you want to just switch on and off, you can use MOC3043/MOC3063 which has zero crossing detector built-in.

R13, R14 - 180ohm ( 1/4W or 1/2W is the best, but 1/8W should be no problem.)

R1, R3 - 180ohm SMD0805 (can be higher, up to 300ohm should work OK.)

R2, R4 - 270ohm SMD0805 (depends on the LED)

LED - SMD0805

Terminal - DG300 or DG301

 

All other parts are optional and depend on the application.

 

Except for LEDs, all of those parts are available from Tayda (non W triacs like BTA16-600B are OK.)

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Rob,

 

2 more questions. How did you hook up the actual lights? It is hard to see from the video. Also, can I get your code that was used in the video above? I would like to get on off functionality going before I attempt the dimming...

 

Thanks again!

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What you can do is cut one wire on the extension cord (preferably hot wire) and connect those cut wires to the board. If you want to use both channels, connect all neutral wires, the plug and both lights. Connect hot wire from the plug to X1-2 & X2-2 terminals. Connect hot wires from lamps to X1-1 and X2-1.

 

The code in the video is nothing special, setup two pins as output and inside while loop, toggle each pin (P1OUT ^= BITx) then delay.

 

Since you asked about dimmer code, I have written one that can control up to 8 channels (requires zero crossing detector.) I will post it once I test it.

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