AzharElectronics
Junior Member level 2
Hi,
I have Aerospace customer released analog circuit as attached with output voltage of 3.5V max and output current max 3.5mA.
Will this drive customer LED placed at 65inch away from this analog circuit unit? My worry is with LED's Forward Voltage and Forward Current. Any things that can be modified in existing design without form fit (PCB layout) changes would be helpful. Earlier design was consider a controller TTL logic and now there is customer requirement change for connecting LED indicator Lamp.
D1 is reference LED used for simulation.
R4 and R5 are wire resistance calculated using reference for 26 AWG as 0.134 Ω/mtr ≈ 0.28 Ω for 2 meters of wire.
I have Aerospace customer released analog circuit as attached with output voltage of 3.5V max and output current max 3.5mA.
Will this drive customer LED placed at 65inch away from this analog circuit unit? My worry is with LED's Forward Voltage and Forward Current. Any things that can be modified in existing design without form fit (PCB layout) changes would be helpful. Earlier design was consider a controller TTL logic and now there is customer requirement change for connecting LED indicator Lamp.
D1 is reference LED used for simulation.
R4 and R5 are wire resistance calculated using reference for 26 AWG as 0.134 Ω/mtr ≈ 0.28 Ω for 2 meters of wire.