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  1. astralist

    Hyperion LPM + Vritonuzz Data Logger Platform

    Holy cow!! What is happened to the LPF after i'm MIA for months?? :eek:
  2. astralist

    Astral Driver - Boost, Buck, & Sepic

    Nope, i locked the TTL function :D BTW, SuperDrive LV Sold 6 units; 44 units left :D
  3. astralist

    Astral Driver - Boost, Buck, & Sepic

    UPDATE! The SuperDrive LV has been completed! This is using a lower powered IC than the original design (the intended IC is out of stock unfortunately) The price is also reduced from $24.9/pc to $19.9/pc I'm able to get 3A from 3.9-4.0Vin when boosting Test method: Using 1x Li-Ion battery...
  4. astralist

    Astral Driver - Boost, Buck, & Sepic

    UPDATE: BAD NEWS :( The new SuperDrive LV (boost-buck 4A) got stuck in customs Not sure when the'll release the package :(
  5. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    Great discussion! About testing the "continuity" or short-testing using multimeter: You need to be aware as the (usual) multimeter will supply about 3V when set into continuity test. This leads into powering up the driver and thus act the same way when you power it up using 3V battery, i.e the...
  6. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    You should try ANR26650M1B, it is by far the best 3.2V battery in 26650 size :D And btw it's from A123 systems UPDATE: SuperDrive V is SOLD OUT!
  7. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    For consideration: Max input voltage would be 6.4V (2x LiFePO4 at full charged = 3.2V*, for example ANR26650M1B cell) Max output voltage (Vf) would be 6V Above that? kaboom! :D *please note that some LiFePO4 is 3.5~3.6V at full charged
  8. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    It's okay Alaskan, because another driver is incoming, 50pcs boost-buck 5A :D:D:D
  9. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    SuperDrive V: 12 units left Looks like fabricating 100 units is not enough :(
  10. astralist

    Never lucky

    I always suspected that the concave lens in the 3EL reflecting and focusing enough power to melt the LD's window. Because it also happened to me :( If there are some debris at the beginning, it should have melted since the beginning of turning on laser. BUT, it happened only when i try to...
  11. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    That makes me want to work in Qatar lol. A bit tired working as a scientist in here :crackup: let me know should there is an opportunity! :shhh:
  12. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    UPDATE again: Sold 20 more, now only 30 units remaining! :eek: I see what you meant. Btw, it's not DTR who bought those 50 and 20 units ;)
  13. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    Doesn't sinking it to aluminum/copper surface involves drowning the IC's side of the driver's PCB? Except if you meant by drowning is just by molding it into some container, then i agree with that having an inefficient thermal conduction. BTW, UPDATE: SuperDrive V just sold out 50 of 100 units!
  14. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    I ran it continuously without heatsink at 2.4A The heat generated is "pretty normal" "touchable by hand" At 2A output, it just felt warm. In conclusion, 2.4A without heatsink is fine i think. Minimum current would be about 1.1A-1.3A depends on the tolerance of each potentiometer :D The IC...
  15. astralist

    Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

    Thread updated! New driver available: SuperDrive V This is a generic 5A current regulated laser diode buck driver SPECS: Topology: Buck (When operating, Vin must be above Vout/diode Vf) Vin: 5 - 18V (tested up to ~19.5V input) Vout: 2.5 - 8V (tested up to ~13V output) Iout: 1.1A - 5.2A+...
  16. astralist

    Astral Driver - Boost, Buck, & Sepic

    Yes jnrpop, when i ran it using 2x li-ion battery (8.4Vin), i got about 4.5~4.7A output at max pot :beer:
  17. astralist

    Astral Driver - Boost, Buck, & Sepic

    Yeah, i always tested them without heatsink, to observe the worst case scenario :D When running at 5A without heatsink, the thermal protection kicks in within 5 secs :crackup:
  18. astralist

    Astral Driver - Boost, Buck, & Sepic

    Those bump at the beginning of soft start is either the characteristic of the regulator, or it's from the startup of current sensor (current sensor is not working if Vout below 2.5V) UPDATE: High voltage test Method: Vin using cheap n dirty adjustable laptop charger Vf simulated using series...
  19. astralist

    Astral Driver - Boost, Buck, & Sepic

    I hope everything went fine with this new package i just sent to you :beer: BTW, UPDATE: SuperDrive V has been completed! Here is the test result: Method of test: PWM/TTL pin left unconnected Using 2x4.2V battery (8.4V) as source Current measured as a voltage across 1Ω resistor Driver...
  20. astralist

    Astral Driver - Boost, Buck, & Sepic

    PM replied again, waiting for your decision: DHL or EMS ? :D :beer:




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