bigclivedotcom | Revisiting an OLD project from 20 years ago - with schematic. @bigclivedotcom | Uploaded 4 months ago | Updated 2 hours ago
When I made these panels 20 years ago, I never envisaged that it was similar to how some future LED bulbs would work, but using multi-chip LEDs and a linear regulator.
The weird choppy sinewave is definitely screwing with the test readings. I think the energy meter got the most accurate result. It suggests I may have been running the LEDs quite hard. In hindsight, that 1K resistor is probably getting quite hot too.
The LEDs sold on eBay in packs of 100 by BestHongKong and ChiWing were cheap compared to the high cost of individual LEDs locally, but had reliability issues, as many of the first gallium nitride LEDs did at the time. Having been accustomed to the indestructibility of traditional red LEDs it was a surprise to discover that the new technology was not as robust.
I learned about the unreliability the hard way when I built some of their blue and white LEDs into TV props. Fortunately the failures kinda matched the scene, so it wasn't so visible.
The 3D printed ioniser case is for the universal 100-240V modules, so it will work anywhere in the world. It should also fit the 12V modules too. Once I get back from this trip I'll play about with the design and see how it evolves. I like the conical design, since it elevates the ion emitter above the table and creates a slight upward airflow.
This ioniser is for a friend who sells paranormal research tools, and wants to see how the electrostatic charge in the air affects the charge sensing ghost detectors.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators
When I made these panels 20 years ago, I never envisaged that it was similar to how some future LED bulbs would work, but using multi-chip LEDs and a linear regulator.
The weird choppy sinewave is definitely screwing with the test readings. I think the energy meter got the most accurate result. It suggests I may have been running the LEDs quite hard. In hindsight, that 1K resistor is probably getting quite hot too.
The LEDs sold on eBay in packs of 100 by BestHongKong and ChiWing were cheap compared to the high cost of individual LEDs locally, but had reliability issues, as many of the first gallium nitride LEDs did at the time. Having been accustomed to the indestructibility of traditional red LEDs it was a surprise to discover that the new technology was not as robust.
I learned about the unreliability the hard way when I built some of their blue and white LEDs into TV props. Fortunately the failures kinda matched the scene, so it wasn't so visible.
The 3D printed ioniser case is for the universal 100-240V modules, so it will work anywhere in the world. It should also fit the 12V modules too. Once I get back from this trip I'll play about with the design and see how it evolves. I like the conical design, since it elevates the ion emitter above the table and creates a slight upward airflow.
This ioniser is for a friend who sells paranormal research tools, and wants to see how the electrostatic charge in the air affects the charge sensing ghost detectors.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators
