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AN2711 bảng dữ liệu(PDF) 32 Page - STMicroelectronics

tên linh kiện AN2711
Giải thích chi tiết về linh kiện  The cost of power LEDs is rapidly decreasing
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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AN2711 bảng dữ liệu(HTML) 32 Page - STMicroelectronics

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PC layout
AN2711
32/36
Doc ID 14425 Rev 3
8
PC layout
Further work
The design has been extended to a 30 W output, on the same printed circuit layout, with
very good success. 30 W transformers have been designed to fit the dual footprint for T1.
Similar designs have been produced with a 60 W output.
The input filter has always given problems. It is important to minimize the capacitive current
to maintain power factor and dimmability, which means that higher value inductors are
required, which increases their DC resistance, which impacts efficiency. It is expected that
the user designs their own input filter in most cases. Sufficient space and component pads
are available for experimentation.
Figure 30.
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Figure 31.
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