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Member's Forum MP710086 change input voltage from 110V to 240V
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MP710086 change input voltage from 110V to 240V

rsjawale24
rsjawale24 14 days ago

As the title suggests, I need to change the input AC voltage of Multicomp Pro MP710086 bench top power supply from 110V to 240V AC.

I received this power supply as one of the prizes in the Hackster holidays giveaway but they sent me a model with 110V AC operating supply. 

I tried taking a look at the back panel and there doesn't seem to be a voltage change switch. Is there any switch inside the supply? Or any other way to change the input voltage?

I cannot use it as the supply in my country is 240V AC.

Pictures for reference below. 

imageimage

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  • inavitech
    inavitech 14 days ago +3
    Probably one of the quickest ways is to order one of those travel converters that allows you to convert 220 to 110. They sell on Amazon form $30 USD and up. Probably on-line elsewhere as well.Otherwise…
  • kmikemoo
    kmikemoo 14 days ago +2
    rsjawale24 It looks to be an Owon SP Series DC Power Supply. https://www.owon.com.hk/products_owon_sp_series_1_ch_dc_power_supply As you have already determined, the power supply doesn't look like it…
  • rsjawale24
    rsjawale24 14 days ago in reply to kmikemoo +2
    Yes, it is OWON rebranded power supply. Yup, that seems to be best and cost effective solution.
Parents
  • electronicbiker
    0 electronicbiker 14 days ago

    You could use an external 2:1 step-down auto-transformer to provide 110V AC to the PSU from your 240V AC mains supply. They have a tendency to hum slightly and the regulation isn't too good on the smaller ones. On the up side you don't need to make any changes to the PSU, so it won't affect any guarantees or warranties. The main problem with supplying an answer to this particular problem is that the photograph of the back panel is slightly blurred which makes all the legends and labels difficult to read to say the least. I don't know what the 9-way 'D' connector is for, nor do I know what the rectangular connector underneath the ratings table is for, the one that looks like an old-fashioned printer input socket. A close-up clear photo of the ratings table would be very useful, as would one of all the wording above and to the right of the yellow 'danger' label.

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  • rsjawale24
    0 rsjawale24 14 days ago in reply to electronicbiker

    The image is quite clear for me. Maybe some issue with quality when uploaded here. 

    The D panel is for RS232 communication programming/control through SCPI commands I guess. It also communicates via USB. I checked the website as well, they clearly have two different models of the project one for 110V AC and another for 230 V AC

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  • rsjawale24
    0 rsjawale24 14 days ago in reply to electronicbiker

    The image is quite clear for me. Maybe some issue with quality when uploaded here. 

    The D panel is for RS232 communication programming/control through SCPI commands I guess. It also communicates via USB. I checked the website as well, they clearly have two different models of the project one for 110V AC and another for 230 V AC

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