<![CDATA[230V power supply to Arduino]]>Hi,

I have a number of sensors powered via 230V USB chargers and it works fine but I would like to have a similar power supply (great if encapsulated) with screw terminals to be placed in a small box.

Do you have a good option to use? (and if it's easily available in Sweden it's very good :) )

]]>https://forum.mysensors.org/topic/687/230v-power-supply-to-arduinoRSS for NodeTue, 09 Jun 2026 09:20:09 GMTSat, 06 Dec 2014 14:59:30 GMT60<![CDATA[Reply to 230V power supply to Arduino on Sun, 20 Nov 2016 22:59:26 GMT]]>@axillent thanks and what is the smd coil that you use?

]]>https://forum.mysensors.org/post/52969https://forum.mysensors.org/post/52969Sun, 20 Nov 2016 22:59:26 GMT<![CDATA[Reply to 230V power supply to Arduino on Sun, 20 Nov 2016 22:42:32 GMT]]>@croc sorry to be so late in answer
this as an application note 0_1479681329040_an37-linkswitch.pdf
My design is equal to the schematic posted by @Stephan except an input filter. According to an37 I'm using 2uF + 1uH +2uF as input filter.
I'm using a compact X7R 1uF x 450V purchased from aliexpress. Instead of RF1 I'm using PTFE (a resettable fuse) 40mA @ 250V
D3 + D4 are M7
D1 is US1J / ES1J
C2 & C3 are also X7R

]]>https://forum.mysensors.org/post/52966https://forum.mysensors.org/post/52966Sun, 20 Nov 2016 22:42:32 GMT<![CDATA[Reply to 230V power supply to Arduino on Wed, 21 Sep 2016 00:33:00 GMT]]>@axillent can you look at my early question? can you send a BOM list from your design?

]]>https://forum.mysensors.org/post/48140https://forum.mysensors.org/post/48140Wed, 21 Sep 2016 00:33:00 GMT<![CDATA[Reply to 230V power supply to Arduino on Wed, 21 Sep 2016 00:29:58 GMT]]>@themoloch Hello can you please tell me which 1uf you bought? because you have them in parallel and what is the maximum Am you can get out of them. regards from croc.

]]>https://forum.mysensors.org/post/48139https://forum.mysensors.org/post/48139Wed, 21 Sep 2016 00:29:58 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 27 Jun 2016 12:24:43 GMT]]>Hello, I return to this topic which dates a bit.
I am very interested in the version that uses the LNK306.
I found this electronic diagram that uses LNK306
alt text

Could you provide a detailed nomenclature?
Thank you in advance.

Best regards.

]]>https://forum.mysensors.org/post/41773https://forum.mysensors.org/post/41773Mon, 27 Jun 2016 12:24:43 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 22 Feb 2016 12:32:03 GMT]]>@axillent
Hello my friend! Can you share the schematic and BOM of this LNK circuit, please? I tried to follow LNK Datasheet, but is different of your Project...

thx

]]>https://forum.mysensors.org/post/32246https://forum.mysensors.org/post/32246Mon, 22 Feb 2016 12:32:03 GMT<![CDATA[Reply to 230V power supply to Arduino on Tue, 09 Feb 2016 09:10:13 GMT]]>@axillent Hello. It is an old topic but I am really interedting in your designs and want to know how stable are they after 1 year.

I have two question please.

  • I am desiging the LNK pcb layout but I am a bit confused regarding safety. Pad size ? Trace width ? Ground plane for heat sink ? All these stuff. You mind sharing your design please ?
    Also I dont see a fuze or MOV in your design. Aren't they important ?

  • you posted above 4 circuit deaigns. regarding the final chinese cheap design, what are the advantages and disadvantages of that design. I have just saw it in a cheap LED lamp.

Thanks.

]]>https://forum.mysensors.org/post/31117https://forum.mysensors.org/post/31117Tue, 09 Feb 2016 09:10:13 GMT<![CDATA[Reply to 230V power supply to Arduino on Thu, 22 Oct 2015 08:27:54 GMT]]>@themoloch said:

@axillent said:

if you know what you are doing it is also other choice - linkswitch chips LNK302/304/306. The last one can deliver up to 350mA not isolated power directly 5V or 3.3V. It is as efficient as isolated - unloaded it will consume about 0.2W. A bit bigger than SR036. Easy to construct because you do not need custom transformers. For example Duwi zwave wall switches are using this type of the supply. This is my one side SMD version with regulated output:
photo 002.jpg

Hello axillent, I just bought some of those LNK306 and would like to make a test board, could you share your schematic or components you used to make your own?

Thanks a lot.

Can you give me please the schematic and BOM of your LNK Circuit?

]]>https://forum.mysensors.org/post/23246https://forum.mysensors.org/post/23246Thu, 22 Oct 2015 08:27:54 GMT<![CDATA[Reply to 230V power supply to Arduino on Fri, 03 Jul 2015 21:12:09 GMT]]>@themoloch sure
I'm using a standard schematic from the datasheet. It is also a separate application note exists with recommendation on how to optimize input filter for low loads. The board on the picture for example uses 2x1uF + 2x1uF + 1mH as input filter

]]>https://forum.mysensors.org/post/16486https://forum.mysensors.org/post/16486Fri, 03 Jul 2015 21:12:09 GMT<![CDATA[Reply to 230V power supply to Arduino on Fri, 03 Jul 2015 19:22:55 GMT]]>@axillent said:

if you know what you are doing it is also other choice - linkswitch chips LNK302/304/306. The last one can deliver up to 350mA not isolated power directly 5V or 3.3V. It is as efficient as isolated - unloaded it will consume about 0.2W. A bit bigger than SR036. Easy to construct because you do not need custom transformers. For example Duwi zwave wall switches are using this type of the supply. This is my one side SMD version with regulated output:
photo 002.jpg

Hello axillent, I just bought some of those LNK306 and would like to make a test board, could you share your schematic or components you used to make your own?

Thanks a lot.

]]>https://forum.mysensors.org/post/16483https://forum.mysensors.org/post/16483Fri, 03 Jul 2015 19:22:55 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 22 Jun 2015 08:39:52 GMT]]>Sorry for my imprecision. So I agree with @axillent . If it is just for a motion, it should do the trick. But for higher loads, you should add a dc dc step down or use a better thing.

]]>https://forum.mysensors.org/post/15847https://forum.mysensors.org/post/15847Mon, 22 Jun 2015 08:39:52 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 22 Jun 2015 06:34:04 GMT]]>@scalz said:

I have these http://fr.aliexpress.com/item/AC-220V-DC-3V-10V-5V-9V-1w-1x1w-2w-2x1w-3w-3x1w-Constant-Current-Constant/1900256299.html?recommendVersion=1

I'm using similar one, it is also called 3 x1 W Led driver and by my measurements provides 300mA and 17V without load

I use 220uF to filter its output and I use 78L05 to regulate down to 5V. This can give up to 5V@40mA output. The restriction is a heating desipation rating for 78L05.
For higher loads I would recomment to use DC stepdown. With DC stepdown you can get up to 5V@650mA with 80% efficiency

]]>https://forum.mysensors.org/post/15840https://forum.mysensors.org/post/15840Mon, 22 Jun 2015 06:34:04 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 22 Jun 2015 00:31:11 GMT]]>@scalz Oh I see. Thanks!

]]>https://forum.mysensors.org/post/15835https://forum.mysensors.org/post/15835Mon, 22 Jun 2015 00:31:11 GMT<![CDATA[Reply to 230V power supply to Arduino on Sun, 21 Jun 2015 23:30:00 GMT]]>@Moshe Livne: when I tested it, it was with atmel standalone. So I added a voltage regulator. And you can add a little filter if you want..

]]>https://forum.mysensors.org/post/15834https://forum.mysensors.org/post/15834Sun, 21 Jun 2015 23:30:00 GMT<![CDATA[Reply to 230V power supply to Arduino on Sun, 21 Jun 2015 22:33:18 GMT]]>@scalz these are constant current. how come they supply constant voltage?

]]>https://forum.mysensors.org/post/15831https://forum.mysensors.org/post/15831Sun, 21 Jun 2015 22:33:18 GMT<![CDATA[Reply to 230V power supply to Arduino on Sun, 21 Jun 2015 22:11:07 GMT]]>@msebbe : yes it can.

]]>https://forum.mysensors.org/post/15830https://forum.mysensors.org/post/15830Sun, 21 Jun 2015 22:11:07 GMT<![CDATA[Reply to 230V power supply to Arduino on Sun, 21 Jun 2015 16:47:44 GMT]]>@scalz said:

you can disassemble some components like transformer and cap. So you can make your own mysensors design and you get very small and cheap transformer. I can't find cheaper I think. or maybe on alibaba!
I have these http://fr.aliexpress.com/item/AC-220V-DC-3V-10V-5V-9V-1w-1x1w-2w-2x1w-3w-3x1w-Constant-Current-Constant/1900256299.html?recommendVersion=1

Can this convert 230v to 5v and supply enough power for say an pro mini with motion sensor?

]]>https://forum.mysensors.org/post/15808https://forum.mysensors.org/post/15808Sun, 21 Jun 2015 16:47:44 GMT<![CDATA[Reply to 230V power supply to Arduino on Tue, 28 Apr 2015 21:37:49 GMT]]>you can disassemble some components like transformer and cap. So you can make your own mysensors design and you get very small and cheap transformer. I can't find cheaper I think. or maybe on alibaba!
I have these http://fr.aliexpress.com/item/AC-220V-DC-3V-10V-5V-9V-1w-1x1w-2w-2x1w-3w-3x1w-Constant-Current-Constant/1900256299.html?recommendVersion=1

]]>https://forum.mysensors.org/post/13350https://forum.mysensors.org/post/13350Tue, 28 Apr 2015 21:37:49 GMT<![CDATA[Reply to 230V power supply to Arduino on Tue, 28 Apr 2015 05:57:13 GMT]]>I've got a couple of them (3.3 and 5 V models), the wired models. Just received. Still to test...

]]>https://forum.mysensors.org/post/13316https://forum.mysensors.org/post/13316Tue, 28 Apr 2015 05:57:13 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 27 Apr 2015 16:22:07 GMT]]>Yes it does.
Look data sheet http://www.mouser.com/ds/2/468/RAC01_02-SC-16262.pdf

]]>https://forum.mysensors.org/post/13292https://forum.mysensors.org/post/13292Mon, 27 Apr 2015 16:22:07 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 27 Apr 2015 16:17:28 GMT]]>Does it fit on 2.54 mm prototype boards?

]]>https://forum.mysensors.org/post/13291https://forum.mysensors.org/post/13291Mon, 27 Apr 2015 16:17:28 GMT<![CDATA[Reply to 230V power supply to Arduino on Mon, 27 Apr 2015 14:05:49 GMT]]>May be too big or too expansive... but it is for sure a good (and safe...) product with a 33x22 mm footprint..

http://www.mouser.com/ProductDetail/RECOM-Power/RAC01-33SC/?qs=waQl70lBfV2Z5QQrs%2FIAaw%3D%3D

]]>https://forum.mysensors.org/post/13280https://forum.mysensors.org/post/13280Mon, 27 Apr 2015 14:05:49 GMT<![CDATA[Reply to 230V power supply to Arduino on Sun, 26 Apr 2015 19:10:00 GMT]]>@Magiske I am using a power supply similar to the black one. My one has a fake optocoupler. The output voltage is unregulated. Have a close look before using this pcb. ;)

]]>https://forum.mysensors.org/post/13221https://forum.mysensors.org/post/13221Sun, 26 Apr 2015 19:10:00 GMT<![CDATA[Reply to 230V power supply to Arduino on Sat, 25 Apr 2015 19:29:11 GMT]]>I've seen these and also got interested. Any input on these is appreciated.

]]>https://forum.mysensors.org/post/13149https://forum.mysensors.org/post/13149Sat, 25 Apr 2015 19:29:11 GMT