I bought this cheap 3 USB Adapter on Amazon. Many folks online have reviewed the item and found the Transformer to be dodgy.
After a while i smelled the transformer burning and it soon was outputting 15V on the 3 usb ports!
I bought these one usb black adapters that are UL Listed and safe. Only thing is it can only take up 0.5A which the dodgy one took a bit more than that.
I looked at the circuit boards and found similar layouts between the two transformers. The outputs are the same too between the two. The corresponding output pin on one is negative like the other transformer.
With the pictures of both circuit boards A & B are the outputs of the transformer. A is negative, B is positive. So both are the same. They both have the same two input pins. The only thing different i see are the two middle pins on the input of both of the transformers.
Would swapping the transformer work or should i find a different transformer? I understand if i use the transformer from the non-dodgy one in the dodgy one it won't be able to handle a lot of Amps.
After a while i smelled the transformer burning and it soon was outputting 15V on the 3 usb ports!
I bought these one usb black adapters that are UL Listed and safe. Only thing is it can only take up 0.5A which the dodgy one took a bit more than that.
I looked at the circuit boards and found similar layouts between the two transformers. The outputs are the same too between the two. The corresponding output pin on one is negative like the other transformer.
With the pictures of both circuit boards A & B are the outputs of the transformer. A is negative, B is positive. So both are the same. They both have the same two input pins. The only thing different i see are the two middle pins on the input of both of the transformers.
Would swapping the transformer work or should i find a different transformer? I understand if i use the transformer from the non-dodgy one in the dodgy one it won't be able to handle a lot of Amps.
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