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    • 8. 发明授权
    • System using body-biased sleep transistors to reduce leakage power while minimizing performance penalties and noise
    • 系统使用身体偏置的睡眠晶体管来减少泄漏功率,同时最大限度地降低性能损失和噪音
    • US06744301B1
    • 2004-06-01
    • US09707528
    • 2000-11-07
    • James W. TschanzYibin YeSiva G. NarendraVivek K. De
    • James W. TschanzYibin YeSiva G. NarendraVivek K. De
    • G05F302
    • G05F3/205
    • A system and method to reduce leakage power while minimizing performance penalties and noise is disclosed. In accordance with one embodiment of the invention, the system includes at least one sleep transistor operatively coupleable between a system power supply and at least one circuit powered by the system power supply to control the application of power to the circuit. The sleep transistor is also operatively coupleable to receive a sleep control signal to turn the sleep transistor on and off. A body bias voltage generator is operatively coupleable to a body of the at least one sleep transistor to substantially reduce leakage current when the sleep transistor is non-operational or idle and to improve the operational characteristics of the sleep transistor when the transistor is operational by reducing the performance penalty of the sleep transistor and by reducing impact of noise on the circuit and other devices.
    • 公开了一种降低泄漏功率同时最小化性能损失和噪声的系统和方法。 根据本发明的一个实施例,该系统包括至少一个休眠晶体管,其可操作地耦合在系统电源和由系统电源供电的至少一个电路之间,以控制对电路的功率的施加。 休眠晶体管也可操作地耦合以接收睡眠控制信号以打开和关闭睡眠晶体管。 身体偏置电压发生器可操作地耦合到至少一个睡眠晶体管的主体,以在休眠晶体管不可操作或空闲时基本上减少泄漏电流,并且当晶体管通过降低工作时改善睡眠晶体管的操作特性 休眠晶体管的性能损失,并减少噪声对电路和其他器件的影响。
    • 10. 发明授权
    • Temperature dependent regulation of threshold voltage
    • 温度依赖调节阈值电压
    • US06917237B1
    • 2005-07-12
    • US10792262
    • 2004-03-02
    • James W. TschanzMircea R. StanSiva G. NarendraVivek K. De
    • James W. TschanzMircea R. StanSiva G. NarendraVivek K. De
    • G05F3/20G05F3/26H03K3/01
    • G05F3/262G05F3/205
    • Embodiments circuits provide a transistor body bias voltage so that the ratio of ION to IOFF is constant over a range of temperature, where ION is a transistor current when ON and IOFF is a (leakage) transistor current when OFF. In one embodiment, a nFET is biased to provide ION to a current mirror that sources a current AION to a node, a nFET is biased to provide IOFF to a current mirror that sinks a current BIOFF from the node, and an amplifier provides feedback from the node to the body terminals of the nFETs so that at steady state AION=BIOFF, where A and B are constants independent over a range of temperature. In this way, the ratio ION/IOFF is maintained at B/A for some range of temperatures. Other embodiments are described and claimed.
    • 实施例电路提供晶体管体偏置电压,使得I ON / OFF与I OFF之间的比率在温度范围内是恒定的,其中I < 是ON时的晶体管电流,当OFF时,I 是晶体管电流(泄漏)。 在一个实施例中,nFET被偏置以将电流镜提供给电流反射镜,该电流镜将节点的当前AI导通,nFET被偏置以提供I < OFF 到从节点吸收当前BI OFF的电流镜,并且放大器从节点向nFET的体式终端提供反馈,使得在稳态AI ​​< ON = BI ,其中A和B在温度范围内是常数独立的。 以这种方式,在一些温度范围内,比率I ON / OFF / OFF保持在B / A。 描述和要求保护其他实施例。