• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.24 no.8
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• pp.753-762
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• 2013

This paper forecast that, if the EMC test market for broadcasting and communication materials and equipment reaches a saturated state, such will give rise to adverse effects such as capture phenomenon, rent seeking phenomenon, and stiff test price competition; this in turn will eventually wield a negative impact on our society. Thus, to determine the saturation level of EMC test markets, the size of test markets and test capabilities of the designated laboratories were surveyed. As a result, the operation rate of equipment in the EMC test markets was revealed to be 78 %, suggesting market saturation. Moreover, the wireless, wire, and SAR equipment operation rates reached 65 %, 3 %, and 10 %, respectively, suggesting market saturation. Thus, maintaining the strictness of testing requires limiting the designation of new test laboratories; in light of practices and implementation of laws, however, the relevant administrative agency has difficulty rejecting applications for the designation of laboratories.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.48 no.6
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• pp.39-44
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• 2011

This purpose of this study is to propose the characteristics analysis of the PCB pattern designed two modes for the output voltage value on the PMIC through converting the limited voltage value inputted from a battery. The PCB design technology has been undergoing difficulty in getting the related technology in a domestic market because of increasing EMI/EMC, Cross-talk, Impedance. And it requires to have the appropriate clearance between the patterns and the technology of PCB pattern width with a amperage according to various uses. The study carried out the characteristics analysis of the PCB pattern designed from a direct output method without a capacitor[mode1], to an output method through a capacitor[mode2] for PMIC output voltage value. Besides, we calculated the pattern width with a amperage using the equation suggested by IPC-2221, presenting the right way of the layout design to analyze the trouble with the test. Therefore, this study is expected to contribute not only to applying the PMIC design for the mobile panel power supply, but also helping the design and application technology in various areas such as car control, camera, note-book, computer, PDA, etc.