Spencerleehorton
Well-known member
having trouble with blowing a few leds and to my mind ive got the values right but want to check with you guys.
Im feeding in 48v to DPDT lug, center two lugs are connected and i take a 3.9k off to the + of hte led and off the center lugs i put a 470R resistor which then has a 220uf/63v cap then feeds the two 6.8k resistors to pins 2 and 3.
Why do I keep blowing leds? I've got about 2.9v going to blue led, if i remove the 470R i still keep blowing the resistors?
any diagrams for this? ive taken my arranement form the api-312 48v but just used a 3.9k resistor.
Im feeding in 48v to DPDT lug, center two lugs are connected and i take a 3.9k off to the + of hte led and off the center lugs i put a 470R resistor which then has a 220uf/63v cap then feeds the two 6.8k resistors to pins 2 and 3.
Why do I keep blowing leds? I've got about 2.9v going to blue led, if i remove the 470R i still keep blowing the resistors?
any diagrams for this? ive taken my arranement form the api-312 48v but just used a 3.9k resistor.