AN EFFICIENCY IMRPOVEMENT AND REALIZATION FOR NOTEBOOK COMPUTER

• Main Authors: So-Yu Weng, 翁碩輿
• Other Authors: Ming-Chieh Tsai
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/72537959939637964234

碩士 === 大同大學 === 電機工程學系(所) === 97 === Energy efficiency has become a battle cry among notebook makers, using less energy helps to reduce CO2 emissions. This thesis presents a new efficiency improved methodology for both adaptor and notebook systems. The benefits include saving power costs for an end user, and giving designers some relief in order to meet E-Star’s requirements. Using a new adaptor, which supports adjustable output voltages, lowers its output voltages while the system is under light load, and can reduce the power consumption of the laptop. Lower DC-DC input voltage can result in higher efficiency but we will explore this further According to our measurement results, the proposed solution can save 2.1 watts of power, equal to a saving of 8.2% of system loading.