Understanding and Eliminating EMI in Microcontroller Applications
Understanding and Eliminating EMI in Microcontroller Applications
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2011
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In today’s world(cid:44) with increasing numbers of both fixed and mobile electronic devices(cid:44) electromagnetic compatibility (EMC) is becoming a critical issue(cid:46) Disastrous(cid:44) if not annoy-ing(cid:44) results occur if a system(cid:44) subsystem or component interferes with another through electromagnetic means(cid:46) The EMC problem is first explained(cid:44) and then the basic theory is presented with an explanation on how to use it to control an EMC problem during the initial design phase(cid:46) The methods that some silicon manufacturers are using to control EMC and how these changes affect our systems will be exam-ined(cid:46) A total system (automobile radio) will be examined in detail to prove the effectiveness of a EMC reduced COP8 TM (8-bit microcontroller)(cid:46) Overall design guidelines will also be given so that the designer can minimize EMI beforeitbe-comesaproblem(cid:46)