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  1. DIWdiver

    LM555 timer for fade-in of 24V LEDs

    Hi all, A CPF member has asked for my help. He wants to build a simple fade-in circuit for a 24V LED string, using a '555 timer. In our communications, I came to think this is to provide a gradual ramp up in brightness when turned on. There was no requirement for gradual turn-off, so...
  2. DIWdiver

    33mm, 25A, 35V, adjustable LED driver - fits D-cell tubes! - thermally protected

    This is the sales thread for the 25A driver I've been building, which has been discussed here: http://www.candlepowerforums.com/vb/showthread.php?393212-Feeler-thread-0-25A-adjustable-linear-driver For those who haven't been following, this driver has high/low/off modes controlled not by a...
  3. DIWdiver

    Feeler thread - 0-25A adjustable linear driver

    Edited 1/11/15 Yes, that's right, 25 amp adjustable driver, two modes. I'm looking to see if there's enough interest in one to make it worth building. Please let me know what you think. $35 USD would get you all this: It would be based on my existing IS1011 automotive driver discussed...
  4. DIWdiver

    MJ-852 mod with XM-L2

    After the failure of my full-custom attempt at an XM-L handheld with 1x 26650, I decided to try my hand at a mod. I looked around for a nice body, intending to replace the driver and LED. I settled on the MagicShine MJ-852, despite MagicShine's poor reputation for quality. I figured I could...
  5. DIWdiver

    ahorton vs jspeybro lenses

    I haven't seen a direct comparison of the ahorton's glass aspheric 27mm lens with jspeybro's plastic Fresnel aspheric 25mm lens, so I decided to post one. For the following pictures, I used a single XML T3 Warm White from LED Supply, mounted to a heatsink with interchangeable movable lens...
  6. DIWdiver

    Automotive 3/6/9A driver - feeler thread

    Hi gang, I'm considering developing a new driver for the high-power LED automotive market. My big question is: would anyone want this instead of DerWichtel's driver? Characteristics of this driver would be: Similar in operation and based on the IS1006 driver. Suitable for use in 12 volt...
  7. DIWdiver

    15A tailcap controller, multimode pwm, piezo/magnetic/clicky, feeler thread

    I'm thinking of building a new board. It would be an interface from various switch types to a load up to 10A (20A or more with heatsink) Some of its potential uses are: - DIY piezo switches using a cheap piezo element instead of an expensive switch - latching circuit for piezo switches - single...
  8. DIWdiver

    DIY piezo switch

    Inspired by another thread, I decided to see if I could make a DIY piezo switch. It proved to be remarkably simple. I haven't yet built the latching portion of the switch, but some applications will not need it. The TaskLED drivers which require short and long contacts, for example, could be...
  9. DIWdiver

    Sold/Expired Adjustable 10A linear LED driver - New and Improved!

    Hi gang, Update, April 4, 2011: Unfortunately, a lot of this thread got lost in the crash. I made another batch of boards, and have plenty left. I usually have a few built up, and if I don't have the one you want, I can build small quantities to order and ship in a few days. This is the sales...
  10. DIWdiver

    High current (SST-90) driver

    Hi everyone, I have been ghosting this board for quite a while, and learning a lot, for which I am grateful. I finally think I may have something to contribute. There seems to be a shortage of high current drivers for the newest high power LEDs. As a result of a recent conversation, I have...
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