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fecting other circuits. This relationship is known as electromagnetic compatibility or EMC . noise has reached important levels. Figure 1. Electromagnetic Radiation Sources
1 EMI AND EMS
generated either internally or by other devices. Figure 2. EMC Contents: EMI and EMS necting cables are called conducted emissions. tests include electrostatic discharge (ESD), transient burst and voltage surge testing.
2 EMC REGULATIONS
place or even monetary fines. Figure 3. Conducted versus radiated Regulations these actions help insure that the worst-case emissions are found. measurements performed on other devices.
30 MHz9 KHz EN
1 Hz 1 kHz 1 MHz 1 GHz
30 Hz 40 GHz
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