how to simulate a LED-circuit

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how to simulate a led

In a pump charge circuit,how to simulate the current through the LEDs according to the voltage between the LEDs?
 

led circuitsimulate

you need a LED model, search this board , there is a LED model
 
thank you!
how can i find the LED model in this board?
I found nothing about LED model in this board!
please tell me how to do!
 

the following is a simple simulaiton model for WLED

.SUBCKT LED P N
R1I10 NI P 1G
C1I3 P NI 10P
R1I4 N NI 0.005
G1I5 P NI VALUE=' 1.261E-17*(EXP(V(P,NI)/(0.025*4.15))-1)'
.ENDS
 

HI,Btrend:
maybe the macro model for WLED have something wrong,because the current through it is too large when the voltage accross the LED is about 0-4V.

thank you!
 

u need to add a current limiting resistor ~ 10 ohm.
 

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