Meanwell LDD driver: for those who want to dim to 0 using Arduino

[theatrus]

I'm not done with those either..... next version gets a SinPadII MCPCB :eek2:, with either 6 channels and a BlueFish MINI, or 8 channels and a Wemos D1 MINI (ESP8266) Wifi controller.

Just gotta save up a few bucks for the SinkPads first........dems spendy!:worried:

SinkPad for a driver board? Time to pick more efficient drivers.

 

[007Bond]

I'm not done with those either..... next version gets a SinPadII MCPCB :eek2:, with either 6 channels and a BlueFish MINI, or 8 channels and a Wemos D1 MINI (ESP8266) Wifi controller.

Just gotta save up a few bucks for the SinkPads first........dems spendy!:worried:

Are you going to have the entire board made of Sinkpad?...is this to eliminate the bolt on heatsink? first I heard of SinkPad

 

[theatrus]

Having built a few higher power drivers, its quite possible to run without any heatsinks even at 3A levels. Not with the A6211 in this case. It just seems pretty extreme of a solution (even a normal MPCB is extreme)

 

[O2Surplus]

Are you going to have the entire board made of Sinkpad?...is this to eliminate the bolt on heatsink? first I heard of SinkPad

Maybe? This board is being designed for a one off project. I only need 1500ma but this particular driver has to be smaller than 1" square and less than 1/4" tall ( board and components combined). I figured a sinkpad board would help, since it can be mounted directly to the LEDs heat sink.

 

[theatrus]

Maybe? This board is being designed for a one off project. I only need 1500ma but this particular driver has to be smaller than 1" square and less than 1/4" tall ( board and components combined). I figured a sinkpad board would help, since it can be mounted directly to the LEDs heat sink.

Vias direct to the bottom layer from the thermal pad - filled if you want. 2 ounce copper. Pull back the mask and use an electrically isolated thermal pad on the bottom. Done, and a lot cheaper

 

[007Bond]

Maybe? This board is being designed for a one off project. I only need 1500ma but this particular driver has to be smaller than 1" square and less than 1/4" tall ( board and components combined). I figured a sinkpad board would help, since it can be mounted directly to the LEDs heat sink.

Oh,...I thought you were talking a total 6 channel board made from Sinkpad. Pics please after build. Thanks,---Rick

 

[perkint]

I'm not done with those either..... next version gets a SinPadII MCPCB :eek2:, with either 6 channels and a BlueFish MINI, or 8 channels and a Wemos D1 MINI (ESP8266) Wifi controller.

Just gotta save up a few bucks for the SinkPads first........dems spendy!:worried:

LOL - have you ever really been "done" with any of them? Without it having evolved into something else first, which then carries on?

Tim

 

[O2Surplus]

LOL - have you ever really been "done" with any of them? Without it having evolved into something else first, which then carries on?

Tim

LOL- You haven't seen any improved CAT4101 designs from me lately. Have you?

:deadhorse1:

 

[theatrus]

LOL- You haven't seen any improved CAT4101 designs from me lately. Have you?

:deadhorse1:

I always appreciate a good space heater

 

[perkint]

LOL- You haven't seen any improved CAT4101 designs from me lately. Have you?

:deadhorse1:

Fair point :lmao:

Tim

 

[Krazie4Acans]

O2 how are you using Cat5/6 cable to daisy chain the 6 channel boards when there are only 4 pair of wires? Are you ganging the grounds through 2 wires or something? Krazie :jester:

 

[jedimasterben]

O2 how are you using Cat5/6 cable to daisy chain the 6 channel boards when there are only 4 pair of wires? Are you ganging the grounds through 2 wires or something? Krazie :jester:

The LDD dimming circuits don't have any ground connections, and wire is wire as long as it is connected somewhere

 

[Krazie4Acans]

As long as the ground reference between the two boards is the same then that is true. so I guessed correctly, right?

 

[O2Surplus]

As long as the ground reference between the two boards is the same then that is true. so I guessed correctly, right?

I use pin # 1 & 8 of the Ethernet cable to pass a common ground connection, and pins 2 - 7 to pass the 6 +PWM signals.

 

[rott]

02 when you get done with the Wemos D1 MINI if you got one extra made up I will take it

 

[O2Surplus]

02 when you get done with the Wemos D1 MINI if you got one extra made up I will take it

Ok- I'll set one aside for you.

 

[rodoselada]

Here's the parts list for that board(as exported from EAGLE).

I want to say thank you for what you do here guys and I am glad that I have found. I have a question I gave command pcb with SCW 8up Ldd but in parts list are resistors that are 10k
and I do not know what values I tried to have them looking
diodes
chip led-1206
transistors

tone of thanks O2Surplus :beer:

 

[gendiaaa]

is ardiuno like storm controller that require common ground btween the ps and the arduino ground ? or only the pwm line with no ground from arduino ?

 

[theatrus]

You would need a common ground between the supplies. For most isolated supplies tieing them is fine, but you can pull a line from industrial automation equipment and tie them with a 100ohm resistor for safety.

 

[androidx1]

O2 those board are a work of art.....thanks again for your help/advice on adding the extra socket to accept the lddl1500's..... it came out perfect.....thanks again for all your help!!!!!
Mike