The SPICE models released by vendors are often really bad, producing results that do not anywhere near match the behaviour described in the datasheet. A recent example I ran into was for the CREE XLamp XP-E2 series LEDs, where the provided models underestimated the forward diode current by a factor of 6 compared to the datasheet and real-world measurements. Some vendors also don’t bother to release SPICE models at all, making it difficult to simulate the parts in LTspice.
Luckily, it is possible to turn...
This blog post is a companion piece to my LED PWM Calculator web tool.
Your eyes are part of an evolutionary pathway that started more than half a billion years ago. Vision capable of accurately identifying objects and movements in the dark has proven to be a key asset when it comes to the chances of surviving the night in an environment filled with predators. This blog post is about LEDs, which are not generally considered to be predators. However, this millennia-long evolutionary process of biological...