Actually that equation works only upto the point where LED current is very very low. Once the voltage reaches the diode knee, this is no longer valid.
Secondly, I know of no LED whose knee is as low as 0.7v. LED's are typically 1.6v .. 3.2v depending on the colour.
Actually that equation works only upto the point where LED current is very very low. Once the voltage reaches the diode knee, this is no longer valid.
Secondly, I know of no LED whose knee is as low as 0.7v. LED's are typically 1.6v .. 3.2v depending on the colour.
Actually that equation works only upto the point where LED current is very very low. Once the voltage reaches the diode knee, this is no longer valid.
Secondly, I know of no LED whose knee is as low as 0.7v. LED's are typically 1.6v .. 3.2v depending on the colour.