[PSUBS-MAILIST] LED Driver

Wed Sep 2 18:17:58 EDT 2015

You are right, there wasn’t much information and I found it confusing.

Hope your 60 watt works OK. If their statement about step down is correct then your LED run voltage has to be less than your input voltage.

The circuit contains an aluminum electrolytic capacitor which makes me question the reliability. But sometimes it still works.

Have fun,

Ken

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan James via Personal_Submersibles
Sent: Wednesday, September 02, 2015 5:36 PM
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] LED Driver

Ken,

that site didn't have a lot of information.

This documentation on Ebay desribes them as constant voltage, constant current drivers

suitable for high power LEDs. 

LED Power Driver Constant Voltage Current Adjust CC CV <http://www.ebay.com/itm/LED-Power-Driver-Constant-Voltage-Current-Adjust-CC-CV-/261642821257> 

 <http://www.ebay.com/itm/LED-Power-Driver-Constant-Voltage-Current-Adjust-CC-CV-/261642821257> 

 <http://www.ebay.com/itm/LED-Power-Driver-Constant-Voltage-Current-Adjust-CC-CV-/261642821257> LED Power Driver Constant Voltage Current Adjust CC CV

US $11.00 New in Business & Industrial, Electrical & Test Equipment, Test Equipment

 <http://www.ebay.com/itm/LED-Power-Driver-Constant-Voltage-Current-Adjust-CC-CV-/261642821257> View on www.ebay.com

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It does say to heat sink it if running more than 25W. Heatsink version available on his site. 

When I mentioned the price to my LED friend yesterday

he was a bit dubious & suggested I might get what I payed for.

You have prompted me to do a bit more experimentation; so have it running at the moment

driving a 60W LED & will see how long it runs for.

Hope you enjoyed the trip to Ireland.

Alan

  _____  

From: Ken Martindale via Personal_Submersibles <personal_submersibles at psubs.org>
To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
Sent: Thursday, September 3, 2015 8:39 AM
Subject: Re: [PSUBS-MAILIST] LED Driver

I looked at this chip and it’s primarily a buck voltage regulator not intended for use as a constant current LED driver.

You can try using it but I’m not optimistic about them.

Let me know if it works.

Ken Martindale

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan James via Personal_Submersibles
Sent: Tuesday, August 18, 2015 8:02 AM
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: [PSUBS-MAILIST] LED Driver

Bought this LED driver & a 4000 & 6000 lumen emitter.

It may be helpful with regard to our open source light.

This one describes itself as having a wattage output limitation, 

beyond which cooling is required. This may be just a heat sink but

I'm not sure. 

There are other higher powered constant voltage, constant

current drivers on site. 

There was no description of how it worked with the product, but managed to

find one on the site posted at the bottom. The blue trim-pot on the left

increases voltage by a clockwise turning & the right trim-pot increases current.

Alan

LED Power Driver Constant Voltage / Current Adjustable Module - Blue + Black <http://www.dx.com/p/led-power-driver-constant-voltage-current-adjustable-module-blue-black-140060#.VdMbt7KqpBc> 

 <http://www.dx.com/p/led-power-driver-constant-voltage-current-adjustable-module-blue-black-140060#.VdMbt7KqpBc> 

 <http://www.dx.com/p/led-power-driver-constant-voltage-current-adjustable-module-blue-black-140060#.VdMbt7KqpBc> LED Power Driver Constant Voltage / Current Adjustable...

I like this from DX. Find the cool gadgets at a incredibly low price with worldwide free shipping here.

 <http://www.dx.com/p/led-power-driver-constant-voltage-current-adjustable-module-blue-black-140060#.VdMbt7KqpBc> View on www.dx.com

Preview by Yahoo

1~35V DC 25W Power LED Driver Supply LM2596 CC CV Light [Constant Voltage Current_A] - $15.00 : Zen Cart!, The Art of E-commerce <http://www.xscyz.com/index.php?main_page=product_info&products_id=284> 

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 <http://www.xscyz.com/index.php?main_page=product_info&products_id=284> View on www.xscyz.com

Preview by Yahoo

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