Comments on: Make A Very Cheap Power Adapter Of Defect Electric Tooth Brush Charger

By: Andrea Del Corso

Andrea Del Corso — Mon, 13 Jun 2022 13:53:10 +0000

Come al solito..un bel lavoro di informazione.Grazie!
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As usual .. a nice job of information. Thanks!

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By: Albert van Bemmelen

Albert van Bemmelen — Sun, 10 Apr 2022 17:41:01 +0000

Many thanks for your appreciative comment Mathew!

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By: Waleed Rishmawi

Waleed Rishmawi — Sat, 09 Apr 2022 23:56:45 +0000

In reply to Albert van Bemmelen.

VA7208. Found it on line but not locally

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By: Mathew Charles Karonga

Mathew Charles Karonga — Sat, 09 Apr 2022 20:33:49 +0000

Greetings Mr AVB

Thank you for the detailed post which is easy to follow and read and you are always there to share educative and yet very informative tricks of the trade and we are getting a lot of help from you article keep sharing your knowlege,

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By: Yogesh Panchal

Yogesh Panchal — Sat, 09 Apr 2022 17:02:29 +0000

Good Fix! Albert,

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By: Albert van Bemmelen

Albert van Bemmelen — Sat, 09 Apr 2022 09:14:05 +0000

In reply to Waleed Rishmawi.

What type of charging chip are looking for Waleed?

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By: Waleed Rishmawi

Waleed Rishmawi — Sat, 09 Apr 2022 07:43:32 +0000

that is an interesting challange. I am going through a repair challange at the moment. I have an ultr violet dental light and it works on 5 volts but somehow someone connected it to a 12 volts not paying attention to the voltage polarity and he messed up the charging ic and I am still looking for one and so far no luck. so hopefully I will be able to repair that and share it with you guys. have a blessed day

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By: Albert van Bemmelen

Albert van Bemmelen — Sat, 09 Apr 2022 05:57:12 +0000

In reply to Parasuraman S.

Afterwards I of course also tried the 3.5 Watt toothbrush charger with a diodebridge and a large 16V capacitor on my LCR tester. This time the LCR tester worked splendidly in the first 8 to 10 seconds it worked. And I even was able to test components as long as the voltage was high enough to keep the 9V tester working! And in my article the given values on the measured current and voltage in my coil were still valued too low. Because the measured current and voltage were even better when the coil was exactly placed giving 60mA and 11.78V. And this 3.5 Watt charger operates at its best on 5V to 6V devices. I also tried some of the other 1 Watt toothbrush chargers and noticed that they also gave a high open voltage but likely were less useful used as power adapter compared to the 3.5 Watt charger in the article.

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By: Parasuraman S

Parasuraman S — Sat, 09 Apr 2022 02:32:27 +0000

Sky is the limit for your wonderful and exciting ventures! Many thanks for writing such a detailed article and sharing it here!

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