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I need some advice regarding high powered LED chip and boost step up/down modules.

Firstly can a boost device be used with constant current drivers to reduce forward current to chip?

I have a 72w LED chip @ 26-31v @ 2.0A, I also have a driver 80w @ 30-36v @ 2.4A, I wish to reduce current to around 2.2A so is it possible for me to do this?

This is the boost convertor and this is the driver.

Another thing how do i know what the current level is when adjusting via potentiometer?

Some boost devices have a digital display to show voltage/current when stepping down or up, how will I know exactly what the outputs are when I reduce or increase them?

Any assistance with this is greatly appreciated.

David
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user30947
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  • [Cross-posted and closed](http://diy.stackexchange.com/q/35963/22) on [diy.se] – Niall C. Nov 20 '13 at 04:09
  • [Cross posted](http://tex.stackexchange.com/questions/145940/using-high-powered-led-with-cc-drivers-and-boost-step-up-down) on LaTeX too (interesting choice) – PeterJ Nov 20 '13 at 04:21
  • Links to ebay auctions probably aren't great as they will eventually expire. You might benefit from reading [this question](http://electronics.stackexchange.com/questions/34745/choosing-power-supply-how-to-get-the-voltage-and-current-ratings). – David Nov 20 '13 at 06:38

1 Answers1

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Firstly can a boost device be used with constant current drivers to reduce forward current to chip?

That's not what a voltage-booster is designed for, so no.

how do i know what the current level is when adjusting via potentiometer?

I would use a multimeter (assuming that's a preset)

Some boost devices have a digital display to show voltage/current when stepping down or up, how will I know exactly what the outputs are when I reduce or increase them?

By looking at the digital display? If the boost converter lacks this, I'd use a multimeter. If I intended doing this after initial setup, I'd consider adding panel meters to the circuit.

RedGrittyBrick
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