• Title/Summary/Keyword: Cross regulation

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A Cross Regulation Analysis for Single-Inductor Dual-Output CCM Buck Converters

  • Wang, Yao;Xu, Jianping;Zhou, Guohua
    • Journal of Power Electronics
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    • v.16 no.5
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    • pp.1802-1812
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    • 2016
  • Cross regulation is a key technical issue of single-inductor multiple-output (SIMO) DC-DC converters. This paper investigates the cross regulation in single-inductor dual-output (SIDO) Buck converters with continuous conduction mode (CCM) operation. The expressions of the DC voltage gain, control to the output transfer function, cross regulation transfer function, cross coupled transfer function and impedance transfer function of the converter are presented by the time averaging equivalent circuit approach. A small signal model of a SIDO CCM Buck converter is built to analyze this cross regulation. The laws of cross regulation with respect to various load conditions are investigated. Simulation and experiment results verify the theoretical analysis. This study will be helpful for converter design to reduce the cross regulation. In addition, a control strategy to reduce cross regulation is performed.

Improving the Ownership Regulation in the Broadcasting Industry (방송사업의 소유겸영규제 개선)

  • LEE, Suil
    • KDI Journal of Economic Policy
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    • v.33 no.4
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    • pp.85-118
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    • 2011
  • This paper uses the horizontal regulation system as the base analysis framework. The study clearly defines the regulatory goals of the followings: the horizontal cross-ownership regulations on program provider (PP) and platform provider, the vertical regulation on cross-ownership between PP and platform operator, the regulation on cross-ownership of program provider by terrestrial broadcasting company, and the regulation on cross-ownership between terrestrial broadcasting company and platform provider. Then, by analyzing the conformity between goals and criteria of regulations and the adequacy of the regulation level according to regulatory purposes, this paper examines the justifiability of each regulation and extracts improvement measures that suite regulatory purposes. This analysis finds following appropriate measures: replacing the horizontal cross-ownership regulation on PP with conduct regulations, such as designating major broadcasting programs or replacing the current criterion of cross-ownership regulation from sales to the audience market share; reshaping the horizontal cross-ownership regulation on platform provider so that system operator (SO), satellite broadcaster and Internet protocol television (IPTV) operator would be applied by the same regulation based on the number of subscribers of pay television services; and discontinuing other cross-ownership regulation. In this way, the study shows that with appropriate regulations on cross-ownership of PP, there would be no need for additional regulation on vertical integration between PP and platform operator. On the other hand, given that the regulation on terrestrial broadcasting cross-ownership of PP could be justified only by regulatory purpose of the protection of the diversity of public opinions, it would be desirable to replace the current criteria of the number of PPs with the criteria of the audience market share. Lastly, the study shows that when platform operator is targeted by the cross-ownership regulation based on the number of subscribers of pay television services, the regulation on cross-ownership between terrestrial broadcasting company and platform provider should be replaced with conduct regulations, such as designating must-offer channels and major broadcasting programs.

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A Study on Cross-Border Supply Regulation Policy of Telecommunications Service - Focused on Korea, USA, Japan - (통신서비스의 국경간 공급 규제정책 연구 - 한국, 미국, 일본을 중심으로 -)

  • Kang, Shin-Won;Bae, Hong-Kyun
    • International Area Studies Review
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    • v.13 no.1
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    • pp.445-464
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    • 2009
  • Many countries in the world have regulated cross-border supply in basic telecommunications services based on GATS exception rule for telecommunications because of anti-competition behavior control, domestic consumer protection, tax levy, national security, etc. Korea partially regulates cross-border supply in telecommunications service through the WTO and the domestic law and regulation. However, WTO and FTA negotiations, cross-border supply regulation are strongly demanded to deregulation. Therefore, it is required to review the effectiveness of cross-border supply regulation to prepare the counter plan for that regulation. Thus, the major countries of the telecommunication services regulation regarding the cross-border supply are reviewed. In addition, it is retrieved some implications for Korean regulation policy by reviewing the actual regulation of many countries cases.

Cross-border Flow of Workers and Regulation of Border Labor Markets: Focus on EU's Grande R$\acute{e}$gion (월경취업 노동이동과 접경지역 노동시장 조절 -유럽연합 Grande R$\acute{e}$gion을 사례로-)

  • Moon, Nam-Cheol
    • Journal of the Economic Geographical Society of Korea
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    • v.16 no.2
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    • pp.167-181
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    • 2013
  • The cross-border flow of workers in EU having the freedom of labor mobility and residence plays a role in the border labor markets as a structural factor of regulation. The regulation role of the cross-border flow of workers on the Grand R$\acute{e}$gion, which is the border among the France-Belgium-Luxemburg-Germany, is as follows. First, the cross-border flow of workers regulates the regional surplus and lack of labor in quantity and quality. Second, the border labor markets are regulated by the regionally segmented supply and demand of labor and are modulated by the flexible employment like a part-time and temporary employment. Third, the residence of the cross-border workers concentrates on the adjacent regions to the border. And the atypical cross-border workers, who have their residence in the neighboring country but works in the existing country, are rising rapidly.

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Charge Copy Method for Reduction of Cross Regulation in SIDO Boost Converter (SIDO boost converter에서 크로스 레귤레이션을 줄이기 위한 전하 복사방법)

  • Hwang, Wonjune;Kim, Ju Eon;Baek, Kwang-Hyun
    • Journal of IKEEE
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    • v.20 no.4
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    • pp.432-434
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    • 2016
  • In conventional SIDO(Single Inductor Dual Output) boost converter, charging time is changed by load power consumption. In this case, if the power consumption of one load is changed to such a degree that switching frequency of the boost converter must be changed, another load charge time is also changed, which this causes cross regulation. In this paper, the charge copy technique is proposed to reduce cross regulation. When the switching frequency is changed to an integer ratio, another load charge time is also changed to integer ratio. Simulation result shows that proposed method reduces the 10.24mV cross regulation and 39.118us recover-time compared with conventional method.

Analysis of Cross-Regulation Characteristics for Multi-Output LLC Resonant Converter (다중출력 LLC 공진 컨버터의 Cross-regulation 특성 분석)

  • Jeong, Jin-Woo;Lim, Jeong-Gyu;Chung, Se-Kyo;Kim, Jong-Hae;Oh, Dong-Sung
    • Proceedings of the KIPE Conference
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    • 2011.07a
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    • pp.151-152
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    • 2011
  • This paper describes a cross-regulation characteristics of a multi-output LLC resonant converter widely used in consumer electronics. The output characteristics of the multi-output LLC converter is derived from the assumption that the current and voltage to flow through the resonant network is sinusoidal and the duty loss is investigated. The simulation results are provided to verify the theoretic results.

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Analysis of Cross-Regulation Characteristics for LLC Resonant Converter of Secondary Multi-winding Structure (2차측 Multiple-Winding 구조의 변압기를 갖는 LLC 공진형 컨버터의 Cross-regulation 특성 분석)

  • Kim, Sung-Jae;Kim, Yeong-Sam;Kim, Jong-Soo
    • Proceedings of the KIPE Conference
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    • 2019.07a
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    • pp.289-290
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    • 2019
  • 2차측 Multi-winding구조의 LLC공진형 컨버터는 교차조절(Cross-regulation) 특성에 의해 각 출력의 부하의 변화에 따라 출력전압의 불균형 문제가 있다. 본 논문에서는 2차측 Multi-winding 구조의 LLC공진형 컨버터에서 나타나는 교차조절 특성을 이론적으로 분석하고 240W급 LLC공진형 컨버터를 이용하여 실험을 진행한다. 실험 결과를 통해 출력 채널 수의 증가에 따른 교차조절 특성에 대해 고찰한다.

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The Effects of Maternal and Paternal Parenting Time on Preschool Children's Self-Regulation Through Parenting Stress and the Regularity of Daily Routines (부·모의 양육참여시간이 양육스트레스와 일과 규칙성을 통해 유아의 자기조절력에 미치는 영향)

  • Kim, Jaehee;Kim, Ji Yeon;Kim, Hyoun K.
    • Korean Journal of Childcare and Education
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    • v.18 no.2
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    • pp.105-124
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    • 2022
  • Objective: This study investigated the double mediating effects of maternal and paternal parenting stress and the regularity of children's daily routines in the association between maternal and paternal parenting time and children's self-regulation. Methods: A total of 235 preschool children aged 4-5 years and their mothers and fathers participated in the study. Parenting time, parenting stress, and children's self-regulation were assessed using both mothers' and fathers' reports, but the regularity of daily routines was assessed using mothers' reports only. The data was analyzed using SEM in Mplus 8.2. Results: Mothers' and fathers' parenting stress appeared to have cross-spousal mediated effects of their parenting time on children's self-regulation. Higher levels of mothers' and fathers' parenting time predicted higher levels of children's self-regulation through only a lower level of mothers' parenting stress and a higher level of the regularity of daily routines. Conclusion/Implications: Findings indicated that parents' parenting time played a significant protective factor in reducing parenting stress and increasing the regularity of daily routines among family members. This cross-spousal influence on parenting process can inform the development of prevention programs and parenting education to promote self-regulation skills among preschool children.

Online Dispute Resolution for Cross-Border Consumer Disputes (국경넘은 소비자 분쟁에 있어서 ODR)

  • Sung, Joon-Ho
    • Journal of Arbitration Studies
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    • v.25 no.1
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    • pp.25-46
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    • 2015
  • Cross-border consumer disputes are on the increase as cross-border trade between consumers and businesses continues to grow. Cross-border consumer disputes are difficult to solve, because there are different languages, laws and institutions between the parties. These consumer disputes can be solved more easily by Online Dispute Resolution (ODR) in comparison with utilizing court processes. ODR is a branch of dispute resolution which uses technology to facilitate the resolution of disputes between parties. It primarily involves negotiation, mediation or arbitration, or a combination of all three. In this respect it is often seen as being the online equivalent of alternative dispute resolution (ADR). On 18 June 2013, the new legislation on Alternative Dispute Resolution and Online Dispute Resolution has been published - the "Directive on Consumer ADR and Regulation on Consumer ODR". The new legislation on ADR and ODR will allow consumers and traders to solve their disputes without going to court, in a quick, low-cost and simple way. The United Nations working group for online dispute resolution of cross-border electronic commerce transactions (UNCITRAL Working Group III) has been underway since 2010 to continue its work on procedural rules for ODR.

Public Interest and Ownership Regulations in the Media Industry in the Era of Convergence Focused on Domestic Daily Newspapers' Ownership of Broadcasting Station (융합시대 미디어산업의 공익성과 소유규제 국내 종합일간지와 방송의 교차소유 문제를 중심으로)

  • Jun, Young-Beom
    • Korean journal of communication and information
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    • v.46
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    • pp.511-555
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    • 2009
  • Media-related regulations can be classified into two categories; regulations of individual media contents and regulations regarding the entry to and withdrawal from a certain field. In this dissertation, ownership regulations are regarded as legal and political measures so as to prevent the monopoly and oligopoly of public opinion, and to secure its diversity. Every country has its own regulation model according to its particular media environment. Korea too is obliged to actively respond to its environmental changes, at the same time vitalizing the media industry and protecting consumers' rights and interests. Strong political intentions to protect the public interest is necessary when it comes to media regulation policies, especially in the circumstances that public interest is an industrial priority. As the convergence of broadcasting and telecommunications is leading to a major shift in the media industry, the regulation of cross-media ownership is an issue involving potential conflicts among media-owners, non-governmental organizations and the authorities concerned, depending on their various viewpoints regarding the media industry. In this paper, an attempt was made to search necessity of redefining 'public interest', which is the logic behind the restriction of cross-media ownership, and to reconceptualize issues on the centralization and diversity of media. First, an examination of the actual conditions of newspaper companies was carried out in order to reinvestigate domestic cross-media ownership issues, which is represented by the cross-ownership issue of newspapers and broadcasting stations. Next, the dilemma of policies stimulated by the fusion of media was discussed based on cross-media ownership restrictions, and the need for efficient conflict control was suggested. Finally, proposals on the independency and public confidence of media-related policy-making authorities, the rationalization of regulation models, an itemized discussion on cross-media ownership regulation issues, the elaboration of measures for a balanced development among media were made. It could be found that a number of foreign countries were still facing challenges to prevent monopoly and oligopoly of the public opinion and the industry. A solution to settle disagreements about the dilemma of the media industry, including the cross-media ownership regulation issues, must be arranged on the grounds of 'mutual respect of public interest and industrial interest', In Korea, an ease on the ownership regulations adapting to the change in the media industry may be considered, however the softening of the cross-media ownership regulations must be approached with the utmost care. Paradoxically Relieving cross-media ownership regulations may be considered the foundation of a richer field of journalism, where there is no need for concern over the monopoly and oligopoly of public opinion.

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