FoC question.

[Machinimax]

Do you have to configure how much current you want for a FoC die on a Crystal Focus or does the board feed that die a fixed amount of current? Now I'm going to assume it is configurable and that it is the "focd" configuration but I'm not to sure. That's why I'm asking so please correct me of I'm wrong. Thank you very much.

[pointoforigin]

Crystal Focus only regulates the current on the main LED die, not the FoC die. That's run from the Pex and requires resistors to get the right voltage etc for the FoC die. The way it works is that the CF sends a signal to the Pex, which opens up the main voltage from the battery pack. It's not regulated, and therefore requires resistors.

The CF manual says all of this.

[Machinimax]

Crystal Focus only regulates the current on the main LED die, not the FoC die. That's run from the Pex and requires resistors to get the right voltage etc for the FoC die. The way it works is that the CF sends a signal to the Pex, which opens up the main voltage from the battery pack. It's not regulated, and therefore requires resistors.

The CF manual says all of this.

Ohhhhh right, the resistor takes care of regulating the current for the FoC die. DUH! The dozens of times I've looked at that manual and I still thought there was a configuration setting for that FoC die. I can't believe I asked this question now. Silly me!  ;D