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发表于 2011-6-20 15:05:27
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Layout Guidelines for
Switching Power Supplies
ntroduction
When designing a high frequency switching regulated power
supply, layout is very important. Using a good layout can
solve many problems associated with these types of sup-
plies. The problems due to a bad layout are often seen at
high current levels and are usually more obvious at large
input to output voltage differentials. Some of the main prob-
lems are loss of regulation at high output current and/or large
input to output voltage differentials, excessive noise on the
output and switch waveforms, and instability. Using the
simple guidelines that follow will help minimize these prob-
lems. |
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