Current Limit Modes

The following plots illustrate the LED intensity and light coverage of the Aquorea at various beam angles ranging from 0°-80°. 

• The intensity plot on the left shows the LED intensity as a percentage of the maximum intensity measured for the Aquorea.

• The plot on the right shows the percentage of the total light output of the Aquorea that is contained within each beam angle. For example, the 60° circular beam contains 82.7% of the total light output of the LED, this is the sum of the total light output contained between 0-60°.

The LED’s output light intensity can be doubled if the input current limit is removed. This current was limited to 2A by default, but it can be removed using "~device set current limit:5.0" API command. When limit is removed, LED’s current consumption can reach up to 5A depending on brightness setting. For brightness setting if a number more than 100% is chosen, then the microcontroller calculates the maximum brightness available and apply that. For example, when using “~device set lamp:120“, it returns “WARNING: Argument out of range. Value will be clamped.” ”@devicelamp:117“, and maximum brightness 117% will be set. It should be noted that 2A limit can be set back using "~device set current limit:2.0" API command. The blow graph shows the LED’s brightness in both 2A and 5A modes.

Below graphs shows the LED driver’s Current control (Ictrl) voltage, and Die-LED’s voltage vs. intensity in different modes.

2A mode:

5A mode:

Strobe: