psm

• You can transform the psms into emf ecore models , which can be created from uml models or xml schemas using emf - provided tooling
  可以将psm转化成emf ecore模型，后者可使用emf提供的工具从uml模型或者xml schemas创建而来。
• However , psm also have some disadvantages , for example , the output voltage ripple is large at light load and the system maybe produce radio frequency noise
  但psm也具有不可避免的缺点:轻载时输出电压纹波较大,且易引入音频噪声。
• The paper is for verification and design of manufacturability of opc and psm as these two ways have become the most important correction ways
  由于光学邻近校正和交替移相掩模已经成为最主要的掩模校正方法，因此本文主要针对这两种方法进行可制造性的验证和设计。
• 2 . clarifies psm , version control and configuration management concepts in detail and summatrizes the key technologies used in psm system realization . 3
  2 、对产品结构管理以及它的版本控制、配置管理的基本概念进行了详细的阐述，并对psm系统实现的关键技术进行了总结。
• Based on the project of fpga , a system of switching power supply is designed in section 3 of this paper , which includs the modulation of psm , the arithmetic of fpga
  3 .设计基于fpga方案的开关电源系统,包括psm调制、基于状态机的psm调制、 fpsm调制的算法,以此对fpsm的ip核进行验证。
• A model - driven approach is an efficient way to create functional pims of specific namespaces that can be used to create psms of combinations of namespaces to represent profiles
  模型驱动方法是创建特定名称空间的功能pim的有效方式，这些pim可用于创建名称空间组合的psm来表示配置文件。
• Furthermore , we design model transform ruses according to pim and j2ee platform character , which describe how to transform a pim to a platform specific model ( psm )
  然后根据平台无关模型及j2ee平台特征设计模型转换规则,描述如何把平台无关模型转换为加入了j2ee平台信息的平台相关模型。
• Designed the dual - loop control circuit based on optimized psm , which realize to select the suitable duty ratio to make output stable by utilizing voltage and current feedback loops
  3 )设计基于优化psm调制模式的双环控制电路。采用电压、电流双环路控制,根据负载情况选择合适占空比来实现稳压。