公开(公告)号：US20140001861A1

公开(公告)日：2014-01-02

申请号：US13536573

申请日：2012-06-28

申请人： Allen Mann ,  Kevin Mahooti

发明人： Allen Mann ,  Kevin Mahooti

IPC分类号： H02J9/00

CPC分类号： G06F1/30 ,  G06F11/00 ,  H02J1/00 ,  H03K17/62 ,  Y10T307/615 ,  Y10T307/625

摘要： A Complementary Metal Oxide Semiconductor (CMOS) power switching circuit and a method for operating a CMOS power switching circuit are described. In one embodiment, a CMOS power switching circuit includes a voltage selection circuit configured to output the highest output voltage between an output voltage of a primary power supply and an output voltage of a backup power supply and a control circuit configured to connect a load circuit to either the primary power supply or the backup power supply by comparing the output voltage of the primary power supply with a power supply switchover level that is set as a function of the highest output voltage. The backup power supply serves as a voltage reference to set the power supply switchover level only when the output voltage of the primary power supply is lower than the output voltage of the backup power supply. Other embodiments are also described.

摘要翻译： 描述了互补金属氧化物半导体（CMOS）功率开关电路和用于操作CMOS功率开关电路的方法。 在一个实施例中，CMOS功率开关电路包括：电压选择电路，被配置为输出主电源的输出电压与备用电源的输出电压之间的最高输出电压;以及控制电路，被配置为将负载电路连接到 通过将主电源的输出电压与设定为最高输出电压的函数的电源切换电平进行比较，可以选择主电源或备用电源。 只有当主电源的输出电压低于备用电源的输出电压时，备用电源才能作为电源参考设定电源切换电平。 还描述了其它实施例。

公开(公告)号：US09298238B2

公开(公告)日：2016-03-29

申请号：US13536573

申请日：2012-06-28

申请人： Allen Mann ,  Kevin Mahooti

发明人： Allen Mann ,  Kevin Mahooti

IPC分类号： H02J7/00 ,  H02J9/00 ,  G06F1/30 ,  H03K17/62 ,  H02J1/00 ,  G06F11/00

CPC分类号： G06F1/30 ,  G06F11/00 ,  H02J1/00 ,  H03K17/62 ,  Y10T307/615 ,  Y10T307/625

摘要： A Complementary Metal Oxide Semiconductor (CMOS) power switching circuit and a method for operating a CMOS power switching circuit are described. In one embodiment, a CMOS power switching circuit includes a voltage selection circuit configured to output the highest output voltage between an output voltage of a primary power supply and an output voltage of a backup power supply and a control circuit configured to connect a load circuit to either the primary power supply or the backup power supply by comparing the output voltage of the primary power supply with a power supply switchover level that is set as a function of the highest output voltage. The backup power supply serves as a voltage reference to set the power supply switchover level only when the output voltage of the primary power supply is lower than the output voltage of the backup power supply. Other embodiments are also described.

摘要翻译： 描述了互补金属氧化物半导体（CMOS）功率开关电路和用于操作CMOS功率开关电路的方法。 在一个实施例中，CMOS功率开关电路包括：电压选择电路，被配置为输出主电源的输出电压与备用电源的输出电压之间的最高输出电压;以及控制电路，被配置为将负载电路连接到 通过将主电源的输出电压与设定为最高输出电压的函数的电源切换电平进行比较，可以选择主电源或备用电源。 只有当主电源的输出电压低于备用电源的输出电压时，备用电源才能作为电源参考设定电源切换电平。 还描述了其它实施例。

公开(公告)号：US08954778B2

公开(公告)日：2015-02-10

申请号：US13174401

申请日：2011-06-30

申请人： Peter Robertson ,  Allen Mann

发明人： Peter Robertson ,  Allen Mann

IPC分类号： G06F1/12 ,  G06F1/30 ,  G04G19/12

CPC分类号： G06F1/30 ,  G04G19/12

摘要： An electronic timekeeping circuit and a method for operating an electronic timekeeping circuit are described. In one embodiment, an electronic timekeeping circuit includes power supplies and timekeeping circuit components that are grouped into power supply domains. Power is supplied to each of the power supply domains by a corresponding one of the power supplies. Timekeeping registers are duplicated for each of the power supply domains. The timekeeping registers are synchronized between the power supply domains if one of the timekeeping registers is modified or if one of the power supplies is turned off and subsequently turned back on. Other embodiments are also described.

摘要翻译： 描述电子计时电路和操作电子计时电路的方法。 在一个实施例中，电子计时电路包括分组成电源域的电源和计时电路组件。 通过相应的一个电源向每个电源域供电。 每个电源域都会复制计时寄存器。 如果其中一个计时寄存器被修改或者其中一个电源被关闭并随后重新打开，计时寄存器将在电源域之间同步。 还描述了其它实施例。