Hello, I found a great sensor switch/dimmer for leds on the internet. The circuit runs on 12V 2A. From the information I've been able to get, 2A is the output value that cannot be exceeded. What about the input? Can I connect a 12V 4A power supply? With a 4A power supply, I could install two...

As much as you can. A larger power supply than the output of such a sensor doesn't interfere with anything. So using several switches connected in parallel, to a suitably large power supply, will work

And what can happen when the maximum output current is exceeded? Does the circuit shut down? Or does it immediately smoke and is only suitable for rubbish?

The switch circuit is probably based on some ready-made microelement, it is possible that it has a protection (even if it is polymeric), but I would not advise overloading it. Unless you don't care about its long operation So it is a matter of either respecting or checking

Can I use a 12V 4A power supply for a 12V 2A LED dimmer switch?

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#1 13105714 27 Dec 2013 23:58

mm17 mm17

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13105714 27 Dec 2013 23:58

Hello,
I found a great sensor switch/dimmer for leds on the internet.
The circuit runs on 12V 2A. From the information I've been able to get, 2A is the output value that cannot be exceeded. What about the input? Can I connect a 12V 4A power supply? With a 4A power supply, I could install two such switches in parallel and control two light bars. Can I connect a larger power supply to such a circuit? You can find the switch at:
http://www.designlight.pl/wylacznik-sciemniacz-dotykowy-do-led-o_l_553.html
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#2 13105731 28 Dec 2013 00:04

KoziołekMatołek KoziołekMatołek

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13105731 28 Dec 2013 00:04

As much as you can. A larger power supply than the output of such a sensor doesn't interfere with anything.
So using several switches connected in parallel, to a suitably large power supply, will work
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#3 13106006 28 Dec 2013 02:49

mm17 mm17

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13106006 28 Dec 2013 02:49

And what can happen when the maximum output current is exceeded? Does the circuit shut down? Or does it immediately smoke and is only suitable for rubbish?
#4 13106313 28 Dec 2013 10:07

KoziołekMatołek KoziołekMatołek

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13106313 28 Dec 2013 10:07

The switch circuit is probably based on "some" ready-made microelement, it is possible that it has a protection (even if it is polymeric), but I would not advise overloading it. Unless you don't care about its long operation

So it is a matter of either respecting or checking
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Can I use a 12V 4A power supply for a 12V 2A LED dimmer switch?

Can I use a 12V 4A power supply for a 12V 2A LED dimmer switch?

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