Back to Forums
1 post / 0 new
#1 Feb 3, 2021
Last seen: 3 weeks 6 days ago
Joined: 2021-02-03 16:05

Modifying voltage drop LED

Good Afternoon everyone, 

I am trying to simulate a set of LED's with a total voltage drop of ~43V. I tried setting forward voltage to 43V in the modeling application for LED and it didnt work, the diode conducts 4.8V. 

I then tried edditing VJ in the PSPICE model editor to 43, but now when I run bias point simulations for voltage I am getting this error "MODEL1201 is undefined" (model1201 being the diode)


any help on this? Im trying to simulate a constant current LED driver + LED pcb load. I tried simulating a constant wattage load (most useful for my application) but this seems to be impossible on my version of orcad PSPICE


any help is appreciated, thank you

Download PSpice and try it for free! Download Free Trial