Files 10:50 PM Fri 5 Jan Documents dddddddddddddddlight 8. Determine the input power to the red LED, Pi (red), by solving the equation: Pi(red) If (red) x Vf (red) Pi(red) = 20 mlu R40- Vdc LIGHT EMITTING DIODES 9. Now, measure the forward voltage of the green LED, Vf(green), at R40 as shown. Vf (green) = 2.15vdc R41 DS16 DS17 DS18 RED GRN IR R485 LIGHT EMITTING DIODES 10. Determine the input power to the green LED, Pi(green). Pi(green) If (green) x Vf (green) Pi(green) -25.6 mu R39 R41 DS16 DS17 DS18 000- RED GRN _IR R40 LIGHT EMITTING DIODES 11. Measure the forward voltage of the infrared LED, Vf (infrared), from the "bottom" of R41 to ground. Vf (infrared) -1.194 Light Source R41 DS16 DS17 DS18 RED GRN R40 LIGHT EMITTING DIODES 12. Determine the input power to the infrared LED, Pi(infrared): Pi(infrared) If (infrared) x Vf (infrared) P(infrared) 7.94mw Pi(red) = mul P(green) = mW Pi(infrared) mw 3-13 13% ... EDIT