Search results

  1. Java_Az

    Just For LM2596 Users

    this might not be right still on the first cup of coffee. The max output of that reg is 25 volts ( Voltmeter LED display LM2596 DC-DC step-down adjustable voltage regulator module | eBay) In order to get a 25 volt output with a 10k trimmer R1 would have to be 500ohms. So there should be a 500...
  2. Java_Az

    My first 5.2v pass thru breathanalyzer mod :)

    well it for sure will get hot if it goes terminal. Really the most likely thing that's going to happen(not saying it wont blow up in your face ), is the battery is going to die very quickly. Your not going to get close to the 500 cycles. Also the more it gets used the more likely it is that it...
  3. Java_Az

    Just For LM2596 Users

    should be something like this I did cheat though and used my digital microscope
  4. Java_Az

    Just For LM2596 Users

    That usually means it is a Capacitor. There should be a R1 resistor though. The voltage is set by using a voltage divider so there should be a R1 and R2 . In the case of variable voltage R1 would be a fixed value resistor and R2 would be a variable resistor ( AKA trimmer pot ). But thats going...
  5. Java_Az

    Switch ?

    thats a latching switch which means you push it once to turn it on and it stay on till pressed again. You are going to want a momentary switch for a PV . there also is no data sheet but i believe that switch is set up for `12 volts . so a built in resistor is more then likely the case. It might...
  6. Java_Az

    Just For LM2596 Users

    you beat me too it , still cant really tell but it looks like there might be on in the yellow circle
  7. Java_Az

    Just For LM2596 Users

    Can you take some close ups of both sides of the board. There should a resistor somewhere on that joker
  8. Java_Az

    Switch ?

    really it depends on the switch and also the color. If you post the switch your going to use and the color or the LED i can calculate a resistor value for you.
  9. Java_Az

    Just For LM2596 Users

    It is a SMD resistor should have a 3 digit number on it. Tiny little thing next to the trimmer. At least thats where it is at on most of these lm2596 ebay boards. I dont have any here yet( slow boat from China is really slow) but that 3 digit code is what i need Edit : here is a pic of the...
  10. Java_Az

    Just For LM2596 Users

    What is the number on the R1 resistor on the board. Need that resistor value to calculate the proper pot. You will also have to add a resistor with the new pot to get a 3.5 output. after looking at the data sheet my guess is it is somewhere around 300ohm ,I don't think they used a 1K for r1...
  11. Java_Az

    My first 5.2v pass thru breathanalyzer mod :)

    You are going to be pushing that little battery past it's rated specs. When the battery gets down to 3 volts and is boosting to 5 volts your going to looking at about a 4 amp drain off the battery. the rated MAX drain on those 13600 batteries is 2C so in amps that 1.8 amps. You might be tempting...
  12. Java_Az

    3-2-5 Mod

    been playing with one of these for the last three weeks. Mine has pretty much no voltage drop with a Panasonic HD 18650 and 2.5 ohms total resistance( passthrew) . I get around 5 one hundredths of a volt drop Unloaded Loaded
  13. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    maybe TI is cracking down on the free samples , but i know some folks have had trouble before ordering . Not for sure but i think it was a issue with their web browser . Never used this company before but here is the cheapest price on the booster i could find. PTN04050CAD for Texas Instruments...
  14. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    Thats pretty much it , but the voltage goes from around 4.2 to 6. You could get down in the 3 volts range using the diode but it is less efficient since it burns off the extra voltage as heat. Most folks just get the free samples from TI. I don't think anyone sells the module on a VVboard...
  15. Java_Az

    2 into 1 510 connector?

    here is a really simple one I made a few years ago
  16. Java_Az

    4050 booster question

    Not sure if this will help or not but i use these caps. They are pretty small RNE1C101MDS1PX Nichicon Aluminum Organic Polymer Capacitors
  17. Java_Az

    Battery Charger Soldering

    No once you slap a ring on ones finger the others are not considered backup , they are considered Trouble. Well unless your wife is into some freaky stuff.
  18. Java_Az

    4050 booster question

    mine doesn't make any noise at all. But i have electrolytic caps on my setup. looks like you have ceramic caps in your picture. ceramics are good at filtering low frequency noise but not good at the higher frequency. The data sheet on the boosters say it requires electrolytic caps on the input...
  19. Java_Az

    4050 booster question

    That will work but your switch is not going to last long. Those tactile's cant handle the amperage needed to vape. Adding a N channel mosfet would solve the problem or a bigger switch that is rated a lot higher to handle the amps. here is the resistor chart from the Data Sheet
  20. Java_Az

    Battery Charger Soldering

    ME too that is why I have 3 girlfriends
Top Bottom
Forums
Products
Vaping.com
Star Suppliers
Blogs
Menu