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Problem connecting LEDs


Post Number:#1 Post Sat Jul 18, 2015 2:08 pm
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Hi, I'm trying to connect the LEDs with drivers mean well ldd-1000, but when I turn the power supply is giving several clicks when I turn on the LEDs in the direct source without going through the drivers she works normal.

I'm calling according to the image below. What could be wrong? It is normal to be giving source followed snaps?


Image

Post Number:#2 Post Sun Jul 19, 2015 2:51 pm
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Hi!

The wiring seems good.

This "click" is a noise or flash.

Until 1 minute after turn on the controller is normal some oscillation in the light.

Best regards.
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Post Number:#3 Post Sun Jul 19, 2015 3:42 pm
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Post Number:#4 Post Tue Jul 21, 2015 11:37 am
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Hi!

This power supply is bivolt?

Is regulated to how many volts?

Each LED needs of how many volts?

Best regards.
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Post Number:#5 Post Tue Jul 21, 2015 11:44 am
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Post Number:#6 Post Tue Jul 21, 2015 11:53 am
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So the output should be: 10 x 3 V (for LEDs) + 3 V (for LDD) = 33 V.
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Post Number:#7 Post Tue Jul 21, 2015 11:56 am
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Post Number:#8 Post Tue Jul 21, 2015 12:04 pm
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Yes, but make sure that this LED is 3 V because 3 V x 0.7 A = 2.1 Watt or the max. current is 1A.
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Post Number:#9 Post Tue Jul 21, 2015 12:44 pm
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Now I have a question, because when I turn the LEDs on direct source without going through the usual ldd drivers it works without making any hiss?

Post Number:#10 Post Tue Jul 21, 2015 2:49 pm
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Maybe because the power supply is sending all voltage without any restriction.

You will burn your LEDs of this way.

EDIT: BTW for 700 mA use the LDD-700H.
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Post Number:#11 Post Fri Nov 20, 2015 5:49 pm
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Hello, I'm here Meanwell drivers ldd-1000h but the LEDs are 700mA, if I call these LEDs with this driver, they will burn. Is there any way to catch the maximum output current to 700mA of these drivers?


Thank you.

Post Number:#12 Post Fri Nov 20, 2015 9:24 pm
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Hi!

Yes, you will burn the LEDs.

I can't see a good reason to connect resistor or other circuit between LDD and LEDs.

Buy a new LDD or use only a MOSFET to control the voltage. The circuit is available on forum.

Best regards.
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Post Number:#13 Post Mon Nov 23, 2015 8:24 am
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Post Number:#14 Post Mon Nov 23, 2015 9:10 am
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Hi!

No, because there no direct control over the current.

The control is over the voltage.

Best regards.
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Post Number:#15 Post Mon Nov 23, 2015 9:29 am
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Post Number:#16 Post Mon Nov 23, 2015 9:45 am
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I think better use a LDD but, there many people using MOSFET.

Here an example: viewtopic.php?f=25&t=53
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