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Power/Alternative Energy  

Power tip: Minimise EMI from offline power supply

Posted: 13 Jan 2014  Print Version  Bookmark and Share

Keywords:electromagnetic interference  EMI  filter  adapter  cell phone chargers 

[Summary of tips] In every product, the trade off between cost and performance should be managed. Cell phone adapters are a prime example. One trade-off is in the design of the electromagnetic interference (EMI) filter where component cost must be minimised while the product has to pass strict EMI emission requirements. Figure 1 shows an example......
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