EEVblog 1617 - Architectural LED Lighting Build + Test

[EEVblog]

Building and testing an architectural wall wash LED Lighting solution.



Part 2:

Counting LED photons:

Datasheets:
https://havit.com.au/products/hv9693-6080-deep-square-up-down-aluminium-profile
https://cdn.shopify.com/s/files/1/1760/2029/files/HV9723-IP20-240-XK-2_Spec_Sheet_JUN23.pdf
https://cdn.shopify.com/s/files/1/1760/2029/files/HV9783-IP20-168-XK_Spec_Sheet_JUN23.pdf

00:00 - Custom architectural LED wall wash lights
01:27 - Dual sided aluminimum profile
03:45 - 19W/m LED strip
06:08 - 32W/m LED strip
08:20 - Thermal adhesive backing
08:53 - EcoLamp LED Drivers
10:36 - Cable manage the design for replacement
12:30 - Testing
13:10 - LED strip analysis under the microscope
15:04 - Bench testing and verifiying the 19W/m spec
17:28 - Finding the SMD LED constant current driver chip
21:56 - Found it, the Crosschip DS-INK1101
24:47 - Bench testing and verifiying the 32W/m spec
26:52 - Bench testing the dimming
30:09 - Testing the driver adjustable dimming with external input

[nctnico]

For EMC purposes, I'm not a fan of driving LED lamps with PWM. Pulsing sharp edges into long wires isn't a good idea. I always use a constant current switch mode converter which has filtering.

[EEVblog]

For EMC purposes, I'm not a fan of driving LED lamps with PWM. Pulsing sharp edges into long wires isn't a good idea. I always use a constant current switch mode converter which has filtering.

In this case the controller takes the triac input or the 0-10V input and changes the DC output voltage.