Chinese no brand ultrasonic cleaner

tricky74 · 07-01-2022, 06:20 PM

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?

**redwire** · 07-02-2022, 12:30 PM

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.

tricky74 · 07-02-2022, 08:24 PM

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.

**sam_sam_sam** · 07-03-2022, 05:51 AM

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

**CapLeaker** · 07-03-2022, 09:09 AM

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.

07-01-2022, 06:20 PM	#1
tricky74 New Member Join Date: Jun 2022 City & State: Queensland My Country: Australia Line Voltage: 230VAC 50Hz I'm a: Knowledge Seeker Posts: 12	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?

07-02-2022, 12:30 PM	#2
redwire Badcaps Veteran Join Date: Dec 2010 City & State: Alberta My Country: Canada Posts: 2,637	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.

07-02-2022, 08:24 PM	#3
tricky74 New Member Join Date: Jun 2022 City & State: Queensland My Country: Australia Line Voltage: 230VAC 50Hz I'm a: Knowledge Seeker Posts: 12	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.

07-03-2022, 05:51 AM	#4
sam_sam_sam Badcaps Veteran Join Date: Jul 2011 City & State: Some times Sunny Jacksonville FL My Country: USA Line Voltage: 120 Volts 60 HZ I'm a: Knowledge Seeker Posts: 3,659	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 __________________ 9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50F then at 90F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later ) 2 Hem Saw Computer Stack Board All of these had CAPs POOF All of the mosfet that are taken out by bad caps Last edited by sam_sam_sam; 07-03-2022 at 05:54 AM..

07-03-2022, 09:09 AM	#5
CapLeaker Leaking Member Join Date: Dec 2014 City & State: Atlantic Canada My Country: Canada Line Voltage: Ground, 0Hz I'm a: Hobbyist Tech Posts: 5,221	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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