Variable frequency clock control for microprocessor-based computer systems
    2.
    发明授权
    Variable frequency clock control for microprocessor-based computer systems 失效
    基于微处理器的计算机系统的变频时钟控制

    公开(公告)号:US06311287B1

    公开(公告)日:2001-10-30

    申请号:US08321334

    申请日:1994-10-11

    IPC分类号: G06F104

    摘要: A computer system including a microprocessor and a circuit to provide a clock signal for the microprocessor is described. The circuit is responsive to a control signal for selecting a minimum clock signal frequency value and a maximum clock signal frequency value, with the maximum clock signal frequency value being adjusted in accordance with operating conditions of the central processor. Also the system includes a circuit which varies a magnitude of a supply voltage fed to the microprocessor in accordance with the temperature of the microprocessor and the operating frequency of the microprocessor. This arrangement provides an advantage to save power in computers. It is particularly advantageous for portable computers such as notebook computers to conserve battery charge, minimize heat dissipation in the microprocessor, and to minimize the size and weight of the battery used in the notebook for a given operating duration requirement.

    摘要翻译: 描述了包括微处理器和为微处理器提供时钟信号的电路的计算机系统。 该电路响应于用于选择最小时钟信号频率值和最大时钟信号频率值的控制信号,其中最大时钟信号频率值根据中央处理器的工作条件进行调整。 而且该系统还包括根据微处理器的温度和微处理器的工作频率改变供给微处理器的电源电压大小的电路。 这种安排提供了节省电力的优点。 对于诸如笔记本电脑的便携式计算机特别有利于节省电池电量,使微处理器中的散热最小化,并且在给定的操作持续时间要求下最小化笔记本电脑中使用的电池的尺寸和重量。