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    Chinese no brand ultrasonic cleaner

    I bought an ultrasonic cleaner from ebay and after a couple of years it blew one of the driver boards fuse and a couple of diodes. I replaced the parts and it worked for a while then died again. Since then I have thrown out the board and just use one. The unit had 2 drivers and the good one drives 1 transducer only. The fried board was driving 2 transducers. The unit works on 1 transducer but is weak in power. I am tempted to connect the 2 transducers that were driven by the dead board. And leave the single disconnected. Not sure if it there is a fault in them and will just kill the driver. As it is I don't use it as it is just too weak. Ohmmeter test showed high resistance on transducers. Any ideas?

    #2
    Re: Chinese no brand ultrasonic cleaner

    I would check resistance across the electrodes and between each to the metal chassis, to ensure the transducers have not shorted or have a ground fault. You can also measure their capacitance for comparison.
    There may be nothing wrong with them and it's the cheap chinese power supply failing.

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      #3
      Re: Chinese no brand ultrasonic cleaner

      A bit more research this morning. Looks like the driver that ran 1 transducer is 50 watt. The other driver I think I tossed out was 100 watt. Might just try and find a new 100 watt driver. But I can't remember the frequency. The inductor stickers are long gone.

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        #4
        Re: Chinese no brand ultrasonic cleaner

        The 100 watt https://www.alibaba.com/pla/Easy-Ins...yABEgInsvD_BwE
        Drive board transducer $25.00

        Here is a picture of it

        https://sc04.alicdn.com/kf/Hfb8b5065...3bbe564f5L.jpg

        I hope this helps you
        Last edited by sam_sam_sam; 07-03-2022, 05:54 AM.
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        All of these had CAPs POOF
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          #5
          Re: Chinese no brand ultrasonic cleaner

          Can you post a pic of the whole unit? Sorry, I am just curious as I have one too. However mine only blew the fuse inside the socket once. Got mine now for like 4 years and still going strong.

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