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This essay analyzes the immunity of power supply terminal conducted disturbance. First of all, I will discuss the types of the power supply and make the illustration for the test methods and structure of IEC 61000-4-6. Furthermore, I testify multiple suppression components to conclude the effective components for the test of radio frequency field‘s conducted disturbance and take this essay as the reference for the practical use.
General Information technology equipment adapters bring the disturbance of the power cable to the product such as the magnetic interference from radio frequency fields conducted disturbance (IEC 61000-4-6) which causes the abnormal function of the devices including the ripples in the monitor, internet disconnection, the disconnection while swiping the touch panel’s screen and so on. This essay discusses those issues via the suppression components and examines the capacitors, inductances, Ferrite Beads and common mode chokes with the power supply’s output source. After the examinations, I obtain the applied range for the ferrite bead and common choke to reduce the development and debug time. With the examination process, I also go through the test methods and the structure of IEC61000-4-6 to remind the industry all the issues they need to be aware of.
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