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    • 10. 发明申请
    • SYSTEM AND METHOD TO DETERMINE PEAK POWER DEMAND IN AN INTEGRATED CIRCUIT
    • 确定集成电路中峰值功率需求的系统和方法
    • WO2006063248A1
    • 2006-06-15
    • PCT/US2005/044655
    • 2005-12-08
    • QUALCOMM INCORPORATEDTOMS, Thomas R.
    • TOMS, Thomas R.
    • G06F17/50
    • G06F17/5022
    • A method comprises receiving a description of a power distribution network of a circuit, defining at least one DC supernode in the power distribution network, receiving a logical description of the circuit, and determining at least one logic path in the circuit. The method further comprises traversing the at least one logic path in reverse and determining at least one input vector of the at least one logic path. The input vector describes a plurality of nodes in the logic path and a logic transition at an output node occurring in response to a combination of logic transitions at at least one input node in the at least one logic path. The method further comprises assigning a weighting value to each logic transition of each node in the at least one input vector, identifying at least one input vector with maximum contribution to drawing power from the power distribution network as indicated by the assigned weighting, and simulating an AC response of the identified at least one input vector with maximum contribution and identifying at least one logic path generating a peak load to the power distribution network.
    • 一种方法包括接收电路的配电网络的描述,在配电网络中定义至少一个DC超级节点,接收电路的逻辑描述,以及确定电路中的至少一个逻辑路径。 该方法还包括相反地遍历至少一个逻辑路径并确定至少一个逻辑路径的至少一个输入向量。 输入向量描述了逻辑路径中的多个节点和响应于至少一个逻辑路径中的至少一个输入节点处的逻辑转换的组合而发生的输出节点处的逻辑转换。 所述方法还包括为所述至少一个输入向量中的每个节点的每个逻辑转换分配加权值,识别至少一个输入向量,所述至少一个输入向量对所分配的权重所指示的来自所述配电网络的绘图功率具有最大贡献,并且模拟 所识别的至少一个输入向量的AC响应具有最大贡献,并且识别生成到配电网络的峰值负载的至少一个逻辑路径。