Author Topic: EEVblog 1617 - Architectural LED Lighting Build + Test  (Read 1296 times)

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Offline EEVblogTopic starter

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EEVblog 1617 - Architectural LED Lighting Build + Test
« on: May 19, 2024, 10:25:57 pm »
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
 

Offline nctnico

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Re: EEVblog 1617 - Architectural LED Lighting Build + Test
« Reply #1 on: May 19, 2024, 11:13:40 pm »
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.
« Last Edit: May 19, 2024, 11:17:39 pm by nctnico »
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline EEVblogTopic starter

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Re: EEVblog 1617 - Architectural LED Lighting Build + Test
« Reply #2 on: May 20, 2024, 04:05:16 am »
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.
 


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