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Topic: 5v DC from 220v AC circuit (Read 19803 times) previous topic - next topic

leoncorleone

Does somebody have any circuit for a switching converter like that?I want to make one of this.
tnx

OldSteve

Does somebody have any circuit for a switching converter like that?I want to make one of this.
tnx
You clearly do not have the knowledge to safely design or build a circuit that connects to the mains.

It will be easier, cheaper and safer to do as CrossRoads suggested.
Please do not PM me for help. I am not a personal consultant.
And others will benefit as well if you post your question publicly on the forums.

leoncorleone

You clearly do not have the knowledge to safely design or build a circuit that connects to the mains.
You're right.But I want to know more about it.

Southpark

You're right.But I want to know more about it.
Look up switch mode power supply, or switching regulator power supply, buck converter.

But be really careful. Even with that particular module you showed before, one side is potentially dangerous level of voltage (and power). So that's potentially dangerous in itself. But then, if the module isn't designed properly, or bad quality....then even the low voltage side can turn dangerous.

Noobian

I think that module can run at 5V, 0.6 Amp continuously. The OP reckons they need 1 Amp.


its a 1amp module

INTP

Another vote for phone/device charger. Why risk killing yourself in making a $1-2 item.

ElCaron

I also, highly recommend you to not kill yourself with that and just gut a phone charger (or even better, do NOT gut it und keep it in the casing). Your questions suggest that you lack basic electro technical knowledge. Get that with 5V first.

For completeness there is already a thread about that HLK transformer module:
https://forum.arduino.cc/index.php?topic=399990.0  though I am not particularly happy with the safety discussion there. I suggest reading this (really long) thread at the mysensors forum:
https://forum.mysensors.org/topic/1607/safe-in-wall-ac-to-dc-transformers

be80be

Phone charger is by far the easy way to go and there cheap even at 2 amps the iPad ones supper small and can be found for $1,00 at the dollar tree

Jiggy-Ninja

#23
Aug 01, 2016, 10:21 pm Last Edit: Aug 01, 2016, 10:21 pm by Jiggy-Ninja
Ahhh, yes. It should be isolated with a step down transformer. Forgive me for the mistake, you are right, sir.
NO.

For the love of all that is decent and good, DO. NOT. EVER. BUILD. THAT. CIRCUIT.

Do not pass Go, do not collect $200, put your hands in the air where I can see them, and back away from the breadboard slowly. Don't make any sudden movements.
Hackaday: https://hackaday.io/MarkRD
Advanced C++ Techniques: https://forum.arduino.cc/index.php?topic=493075.0

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