Performance Evaluation of 70-W Two-Stage Adapters for Notebook Computers
نویسندگان
چکیده
The paper presents design and performance evaluation of two-stage ac adapters for notebook computers which deliver 70 W from the universal line. Three versions of the flyback converter, as well as the PWM and resonant half-bridge converter were evaluated and compared with respect to their efficiency, component stress, output filter size, and complexity.
منابع مشابه
The Effect of Positive Thinking Skills (Optimism) Based on Thanksgiving notebook on the Spiritual Health of Adolescent Girls
Introduction: Due to the fact that all human events in human societies origin from their behaviors and the source of each person's behavior is directly his style of thought, the positive attitude (optimism) based on gratitude can be achieved by promoting the spiritual well-being of man especially In adolescents, they improve their performance in relation to themselves, God and the community. Th...
متن کاملA visual ergonomic evaluation of different screen types and screen technologies with respect to discrimination performance.
An increasing demand to work with electronic displays and to use mobile computers emphasises the need to compare visual performance while working with different screen types. In the present study, a cathode ray tube (CRT) was compared to an external liquid crystal display (LCD) and a Notebook-LCD. The influence of screen type and viewing angle on discrimination performance was studied. Physical...
متن کاملAnalysis of Online Word-of-Mouth in Online Forums Regarding Notebook Computers
This study aims to analyze online word-of-mouth regarding notebook computers, based on two large notebook computer forums in Taiwan. Online reviews are extracted between January 1, 2008 and April 1, 2010, with a total of 318 effective samples collected. Empirical study found that the market of the notebook computer can be divided into four groups, namely, game and entertainment, fashion and qua...
متن کاملLCN-A loosely coupled network system by LOWELL
The Control Data Loosely Coupled Network (LCN) system is a set of hardware and software that interconnects computers and peripheral devices and provides them a means to communicate with each other over shared high-speed data trunks. The term Loosely Coupled is used to denote that there is no master/slave relationship in the LCN system. To effect communications between two units connected to LCN...
متن کاملTechnical performance evaluation of ERP packages with two-stage DEA approach
Enterprise resources planning (ERP) systems attract many attentions from industry sector because of their ability to facilitate and integrate the enterprise operations. However, many expenses accompany the implementation of these systems and consecutive changes which doing a precise and comprehensive performance evaluation a necessary part of this process. These evaluations should consider oper...
متن کامل