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适应外部电源供应到新的水平VI规格
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适应外部电源供应到新的水平VI规格
符合能源之星标准一样，由美国环境保护署（EPA）的产生和能源部（DOE），外部电源（EPS）或适配器制造商继续改善待机或空载功耗，其开关电源（SMPS）整体转换效率超过二十年。现在，新标准有望进一步提高对新一代外部电源的酒吧。美国能源部已经建立了新的水平VI规范，预计将于二月在美国生效。
在这个日期之后，原始设备制造商必须确保外部电源适配器伴随他们的产品在美国销售必须符合新的水平VI法规。国际效率标记协议要求符合标准的EPS供应二月后必须在其产品标签上显示VI级标记。
Currently， however， the U.S. and Canada require external-power adapters to meet Level IV requirements while the European Union （EU） demands such units to carry Level V markings. But experts believe that the EU and Canada will quickly follow the U.S. lead， requiring OEMs to ensure that all external power supplies are compliant with Level VI regulations.
The new standard is designed to conserve power primarily in consumer and industrial products， while medical power supplies are exempt from the new DoE regulations. According to power supply manufacturer CUI， any products approved by the U.S. Food and Drug Administration are not part of this new regulation. CUI in fact， is one of the few suppliers that is already offering Level VI-compliant EPSs.
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