Angryfox        
Results 1 to 7 of 7

Thread: Driver for 500mA

  1. #1
    Flashaholic*
    Join Date
    Oct 2009
    Location
    In the middle of Europe
    Posts
    898

    Default Driver for 500mA

    Hi

    I'm looking for a 500mA driver, that is intended to be used with a Nichia NCSU033B UV LED. My particular LED hast the M range (3.6-4.0v Vf). I want to build this parts into a P60 dropin shell. The power supply is one 18650 cell.

    The BB Nextgen 500 and the GD Buck/Boost Converter looks both very interesting. I assume only the GD Buck/Boost Converter is a buck / boost converter. Since the Vf of the Nichia is in the volate range a buck - boost driver would be the best.

    Is the GD Buck/Boost Converter usable @500mA? What diameter in mm does this drivers have?

    Best regards

    Thomas
    Last edited by WarriorOfLight; 01-19-2014 at 03:07 AM.
    Still looking for Surefire G2 in Orange.
    If you have one you don't like please PM me.

  2. #2
    datiLED's Avatar
    Join Date
    May 2006
    Location
    Atlanta, GA
    Posts
    1,809

    Default Re: Driver for 500mA

    Quote Originally Posted by WarriorOfLight View Post
    ...
    Is the GD Buck/Boost Converter usable @500mA? What diameter in mm does this drivers have?

    Best regards

    Thomas
    The GD can be configured at 500mA, and will work great with the Nichia NCSU033B UV LED. The converter board is 0.55", or 14mm in diameter. You can use a contact board in the P60 drop-in, and place the GD inside the shell. The NCSU033B is the best UV LED that I have ever used.

    Here are some of the light engines that I built using the Nichia NCSU033B UV LED. They all used either a GD or GDuP converter.

    I am currently accepting limited mod requests. Please send me a PM!

  3. #3
    Flashaholic*
    Join Date
    Oct 2009
    Location
    In the middle of Europe
    Posts
    898

    Default Re: Driver for 500mA

    Thank you for the response, that sounds good to me that the GD can be used for the Nichia NCSU033B. Do you know the resistor values for switching to 500mA? I did not found it here:

    http://theledguy.chainreactionweb.co...roducts_id=961
    Still looking for Surefire G2 in Orange.
    If you have one you don't like please PM me.

  4. #4
    datiLED's Avatar
    Join Date
    May 2006
    Location
    Atlanta, GA
    Posts
    1,809

    Default Re: Driver for 500mA

    Quote Originally Posted by WarriorOfLight View Post
    Thank you for the response, that sounds good to me that the GD can be used for the Nichia NCSU033B. Do you know the resistor values for switching to 500mA? I did not found it here:

    http://theledguy.chainreactionweb.co...roducts_id=961
    Yes, it is 0.10 Ohm.
    I am currently accepting limited mod requests. Please send me a PM!

  5. #5
    Flashaholic*
    Join Date
    Oct 2009
    Location
    In the middle of Europe
    Posts
    898

    Default Re: Driver for 500mA

    Thanks But in the documentation of the website there are two values r1 and r2. Since I do not know what driver IC is used I can not check out the semicuonductor data sheet.
    Last edited by WarriorOfLight; 01-26-2014 at 06:36 AM.
    Still looking for Surefire G2 in Orange.
    If you have one you don't like please PM me.

  6. #6

    Default Re: Driver for 500mA

    WOL,
    Dtailed is correct. R1 and R2 are place holders. To make 500mA, R1 has 0.10 and R2 is blank

  7. #7
    datiLED's Avatar
    Join Date
    May 2006
    Location
    Atlanta, GA
    Posts
    1,809

    Default Re: Driver for 500mA

    Quote Originally Posted by WarriorOfLight View Post
    Thanks But in the documentation of the website there are two values r1 and r2. Since I do not know what driver IC is used I can not check out the semicuonductor data sheet.
    Check out this application from TI. http://www.ti.com/lit/ml/slur016/slur016.pdf I doubt that it is the same schematic as the GD driver, but should be very close.
    I am currently accepting limited mod requests. Please send me a PM!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •