driver help

[wally445]

I purchased a adjustable boost driver for a 445nm build but iv'e hit a problem, when i connected it up to a test load it blew a chip and smoked badly.
I just made the test load and it's soldered fine and exactly the same as all the ones iv'e seen it's got me stumped help appreciated.

 

[Cyparagon]

We can only help you if you give us some details.

Power source description, which driver, what current setting, what test load arrangement, connection method, and perhaps a picture of your setup.

 

[wally445]

Hi yes sorry for the test load i used 6 IN5404 diodes and a 1ohm 5 watt resistor i linked the diodes up all in the same direction with the resistor on one end.
The driver is from odicforce it says 1.6 amp boost driver cost £9.50 part number ofl230.
I soldered diode wires to the driver i then soldered them to the test load and i used a 18650 battery for power if you check the driver out it blew the chip next to the pot.

 

[Cyparagon]

Best guess is you installed the 18650 (or perhaps the test load) backwards. Buy a new driver and observe polarity.

 

[wally445]

It was me soldered the battery wires the wrong way round i cant believe i made this mistake serves me right for rushing late at night.