need driver help schematic with diagram has no protection diode

[sciullo779]

IDK.... wouldn't the first choice be to contact the seller....:thinking:

Or am I the only one that goes back to the Seller/Manufacturer
if something is questionable about a product...
Then... if it doesn't pan out... I will look elsewhere for answers...

BTW.... looks like someone didn't discharge the 47uF cap....
before connecting the LD... :cryyy:

Jerry

i shorted out the cap and even checked it with my dmm............... and also contacted the seller who seems to be of no help, and the current was set with a dummy load of a 1 ohm resistor and enough diodes in series to get a 4.5 volt drop......


and i dont even know what kind of diode that was, but for the price and the power it looked like it had, i dont think ill be able to find anywhere else

 

[ElektroFreak]

i shorted out the cap and even checked it with my dmm............... and also contacted the seller who seems to be of no help, and the current was set with a dummy load of a 1 ohm resistor and enough diodes in series to get a 4.5 volt drop......


and i dont even know what kind of diode that was, but for the price and the power it looked like it had, i dont think ill be able to find anywhere else

That's just a PHR diode. You can get them from at least three different websites (two if which I mentioned above) and in the BST section here. VERY common diode, also WAY too expensive from that ebay seller.

Also, regarding your driver, as I said before as long as you have assembled it correctly it will work. That circuit has been built hundreds of times on this forum alone, with GREAT results. I myself have built at least 20 of those drivers. Without a picture of your driver, it's impossible to tell what went wrong.