X-raying the tiny AC LED lamp filaments
I wondered how these LED filaments were configured inside, so I decided to explore one - using the splendid lamp X-ray device that AvE sent me.
The internal construction of the filament is odd and not quite what I expected.
The circuit is effectively 42 LEDs in series with a resistor in the base of the lamp. The filament can operate on either polarity due to the unusual rectifying system used.
Note that I inadvertently got the LED rectifier diodes wrong at one end. It was very late when I made the video. Originally I wanted to draw out the schematic, but ran out of time.
Here's a link to the video where AvE made the copper X-ray unit:-
https://www.youtube.com/watch?v=ivrxXEUWHL8
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
Видео X-raying the tiny AC LED lamp filaments канала bigclivedotcom
The internal construction of the filament is odd and not quite what I expected.
The circuit is effectively 42 LEDs in series with a resistor in the base of the lamp. The filament can operate on either polarity due to the unusual rectifying system used.
Note that I inadvertently got the LED rectifier diodes wrong at one end. It was very late when I made the video. Originally I wanted to draw out the schematic, but ran out of time.
Here's a link to the video where AvE made the copper X-ray unit:-
https://www.youtube.com/watch?v=ivrxXEUWHL8
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
Видео X-raying the tiny AC LED lamp filaments канала bigclivedotcom
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