• Title/Summary/Keyword: Offline Switching

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A Study on EMI Filters' construction of Electrodeless fluorescent lamp's Ballasts (무전극 형광등 전원의 EMI 필터 연구)

  • Park, S.;Han, S.;Jeong, H.;Jung, B.;Yu, S.;Song, Y.
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.05a
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    • pp.174-177
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    • 2005
  • Offline switching power supplies have high voltage and high current switching waveforms that generate Electromagnetic Interference(EMI) in the form of both conducted and radiated emissions. Consequently, all off-line power supplies must be designed to attenuate or suppress EMI emissions below commonly acceptable limits. Electrodeless fluorescent lamp's ballasts have AC/DC flyback converter, so we must control the EMI emissions.

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A Study on EMI Filters' construction of 150W Electrodeless fluorescent lamp UTLRA's Ballasts (무전극형광램프 ULTRA 150W용 EMI 필터에 대한 연구)

  • Park, S.;Han, S.;Yu, S.;Song, Y.;Jeong, H.;Jung, B.
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2006.05a
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    • pp.217-221
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    • 2006
  • Offline switching Power supplies have high voltage and high current switching waveforms that generate Electromagnetic Interference(EMI) in the form of both conducted and radiated emissions. Consequently, all off-line power supplies must be designed to attenuate or suppress EMI emissions below commonly acceptable limits. Electrodeless fluorescent lamp's ballasts have AC/DC flyback converter, so we must control the EMI emissions.

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Convergence approach to weight control behavior and online clothing product shopping (체중조절행동과 온라인의류쇼핑에 대한 융합적 접근)

  • Kim, Wha-Sun;Lee, Kyu-Hye
    • Journal of Digital Convergence
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    • v.13 no.7
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    • pp.79-88
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    • 2015
  • This study focused on the idea that consumers who are dissatisfied with their body form tend to be more interested in weight control behavior. This research connects this relationship with consumers' risk perception on the internet and consequent decision hesitation behavior. Empirical results extracted three factors of weight control behavior: diet, physical treatment, and medication and exercise. Weight control behavior was different by gender but not by age. Consumers who were dissatisfied with their body form were likely to do exercise, but other types of dissatisfaction (weight dissatisfaction and height dissatisfaction) were not significantly related to weight control behavior. Weight dissatisfaction influenced perceived size risk significantly when shopping online. Diet, physical treatment, and medication had significant influence on perceived size risk when shopping online. Perceived size risk had significant influence on decision delay and offline switch behavior. This study took a convergence approach, which connects consumer characteristics with online shopping behavior.