笔记本适配器要求及趋势
Notebook Adapter Requirements and Trends
• 常见额定功率包括75 W、90 W和120 W。其中90 W平台的批量最大。
Power rating of 75 W, 90 W and 120 W. Highest volume seen in 90 W platform.
• 输入功率大于75 W的应用需要功率因数校正(PFC) Power factor correction needed
for input power greater than 75 W.
• 最低能效要求在升高。一项明显实例就是“能源之星”外部电源(EPS)2.0
版规范。这规范要求在线缆末端所测的最低平均能效达到87%。这规范
将在2008年11月生效。Minimum efficiency requirement is increasing. Example is ENERGY
STAR® 2.0 for EPS (External Power Supplies). It requires a minimum average efficiency of 87 %
measured at the end of the cable. It becomes effective in November, 2008.
• 更高的能效要求使得适配器尺寸可以进一步减小。Higher efficiency requirements
enable a reduction in adapter dimensions.