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    • 9. 发明申请
    • Mother/daughter switch design with self power-up control
    • 母/子开关设计具有自上电控制功能
    • US20080270813A1
    • 2008-10-30
    • US11789721
    • 2007-04-24
    • Shih-Hsien YangChung-Hsing WangLee-Chung LuChun-Hui TaiCliff Hou
    • Shih-Hsien YangChung-Hsing WangLee-Chung LuChun-Hui TaiCliff Hou
    • G06F1/32
    • G06F1/3203
    • System and method for providing power to integrated circuitry with good power-on responsive time and reduced power-on transient glitches. A preferred embodiment comprises a daughter switch coupled to a circuit block, a first control circuit coupled to the daughter circuit, a second control circuit coupled to the first control circuit, and a mother circuit coupled to the circuit block and to the second control circuit. After the daughter switch is turned on by a control signal, the mother switch is not turned on until the daughter switch has discharged (charged) the voltage potential across power rails of the mother circuit to a point where glitches are minimized. The second control circuit turns on the mother circuit when the reduced voltage potential is reached, with a signal produced by the first control circuit reflects the voltage potential. Furthermore, a bypass circuit can be used to reduce leakage current.
    • 为集成电路提供电源的系统和方法具有良好的上电响应时间和减少的上电瞬态毛刺。 优选实施例包括耦合到电路块的子开关,耦合到子电路的第一控制电路,耦合到第一控制电路的第二控制电路以及耦合到电路块和第二控制电路的母电路。 在通过控制信号接通子开关之后,母开关直到子开关已经将母电路的电源轨上的电压放电(充电)到毛刺最小化的位置为止。 当达到降低的电压电位时,第二控制电路接通母电路,由第一控制电路产生的信号反映电压电位。 此外,可以使用旁路电路来减少泄漏电流。
    • 10. 发明授权
    • Mother/daughter switch design with self power-up control
    • 母/子开关设计具有自上电控制功能
    • US07793130B2
    • 2010-09-07
    • US11789721
    • 2007-04-24
    • Shih-Hsien YangChung-Hsing WangLee-Chung LuChun-Hui TaiCliff Hou
    • Shih-Hsien YangChung-Hsing WangLee-Chung LuChun-Hui TaiCliff Hou
    • G06F1/26
    • G06F1/3203
    • System and method for providing power to integrated circuitry with good power-on responsive time and reduced power-on transient glitches. A preferred embodiment comprises a daughter switch coupled to a circuit block, a first control circuit coupled to the daughter circuit, a second control circuit coupled to the first control circuit, and a mother circuit coupled to the circuit block and to the second control circuit. After the daughter switch is turned on by a control signal, the mother switch is not turned on until the daughter switch has discharged (charged) the voltage potential across power rails of the mother circuit to a point where glitches are minimized. The second control circuit turns on the mother circuit when the reduced voltage potential is reached, with a signal produced by the first control circuit reflects the voltage potential. Furthermore, a bypass circuit can be used to reduce leakage current.
    • 为集成电路提供电源的系统和方法具有良好的上电响应时间和减少的上电瞬态毛刺。 优选实施例包括耦合到电路块的子开关,耦合到子电路的第一控制电路,耦合到第一控制电路的第二控制电路和耦合到电路块和第二控制电路的母电路。 在通过控制信号接通子开关之后,母开关直到子开关已经将母电路的电源轨上的电压放电(充电)到毛刺最小化的位置为止。 当达到降低的电压电位时,第二控制电路接通母电路,由第一控制电路产生的信号反映电压电位。 此外,可以使用旁路电路来减少泄漏电流。