| Electronics > Projects, Designs, and Technical Stuff |
| Photo-coupler & TOPSwitch-II = 110/220 auto selector |
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| Kiriakos-GR:
I have one tale to share ... Recently repaired one Ansmann " Energy 8 " NiMH charger , its a lovely device well made , and it is an very smart one . ;D Still got injured at the 110/220 auto selector mini board , from bad AC supply of the electrical network. The long story short , this board has on it an SHARP Photo-coupler PC817 , plus one mini transformer and few capacitors . Plus the TOPSwitch-II ( smart transistor ) TOP 223Y . In my case the TOP 223Y was blown , and there was no evidence of what it was ... By searching on the net , for info , for the only one (second IC on the board) ( SHARP PC817 ) , found that it was used and in another 110/220 auto selector board, of another power-supply , called as Mastech HY5020E . The TOP 223Y its an 30W one , the next TOP 224Y its an 35W one ... And does the same job . The point of my tale are , that those two parts SHARP PC817 & TOP 223Y , looks like they are always together , in those designs . If you find the SHARP one on it , now you know what is the blown one !! ;D The latest Ansmann chargers , are great devices , about the damaged one , I got it damaged from Germany for just 10 EUR (ebay) .. 6 EUR was the cost for the TOP 224Y ( not Chinese one ) . Got also as new the Ansmann " Energy 4 speed " . And their digital battery tester " Energy Check LCD " ( with load ) . All of them , fine products. Here is , how the PCB of the 110/220 auto selector , looks like ... (Mastech HY5020E) http://origin-images.rcuniverse.com/forum/upfiles/325364/Oj27986.jpg |
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