...
Next steps would include testing the lights in an enclosure.
Voltage Boost
Since a boost converter is used in the driver board, a boost in output voltage is expected.
Voltage boost changes depending on PWM duty cycle (which can be adjusted with the potentiometer).
Here are the results for voltage boost and supply current as a function of duty cycle. The power supply was set to 12 V.
Duty Cycle (%) | Voltage Boost (V) | Supply Current (mA) |
|---|---|---|
<1 | -0.503 | 170 |
15.14 | -0.494 | 170 |
44.05 | -0.429 | 175 |
72.24 | 0.077 | 295 |
88.17 | 0.273 | 360 (recommended current is 350 mA) |
Very high (>99) | 0.398 | 410 |
...
Brightness
-To do