各位
大家好 電路如上,請問我得TPS5410應該只有500kHZ的方波 但出現1.8mHZ的震盪請問原因?
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这应该是测量引入了开关噪声。你可以用之前我们同事介绍的视频的测试方式来进行,可以减少这部分的噪声。
以下部分文档,你也可以参考。
Reducing Ringing Through PCB Layout Techniques (slpa005.pdf)
http://www.ti.com/litv/pdf/slpa005