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6 条记录 (耗时 0.014 秒)

    Circuit and method for increasing the stability of switch-mode power supplies
    1.
    发明申请
    Circuit and method for increasing the stability of switch-mode power supplies 有权
    提高开关电源稳定性的电路和方法

    公开(公告)号：US20060238180A1

    公开(公告)日：2006-10-26

    申请号：US11111139

    申请日：2005-04-21

    申请人： Michael Carter ,  Randall Powers

    发明人： Michael Carter ,  Randall Powers

    IPC分类号： G05F1/00

    CPC分类号： H02M1/08 ,  H02M2001/0025

    摘要： An improved circuit and method for increasing the stability of switch-mode power supplies via frequency fold-back is disclosed. For example, a circuit for increasing the stability of a switch-mode power supply using the compensation signal to control the frequency of the oscillator is disclosed, which includes an operational amplifier that functions to scale the compensation signal. Thus, the switching frequency of the power supply involved is decreased as the load is reduced. This novel use of the compensation signal to control the switching frequency of a switch-mode power supply significantly increases the stability of the power supply as compared to prior switch-mode power supplies. Therefore, the switch-mode power supply may be used for those applications where relatively high stability is desired.

    摘要翻译： 公开了一种用于通过频率折回来提高开关模式电源的稳定性的改进的电路和方法。 例如，公开了一种用于增加使用补偿信号来控制振荡器的频率的开关模式电源的稳定性的电路，其包括用于缩放补偿信号的运算放大器。 因此，随着负载的减小，所涉及的电源的开关频率降低。 与先前的开关模式电源相比，这种新颖的使用补偿信号来控制开关模式电源的开关频率显着增加了电源的稳定性。 因此，开关模式电源可以用于需要较高稳定性的那些应用。

    Power supply having a flyback topology and current sense transformer
    2.
    发明申请
    Power supply having a flyback topology and current sense transformer 有权
    具有回扫拓扑和电流检测变压器的电源

    公开(公告)号：US20060062028A1

    公开(公告)日：2006-03-23

    申请号：US10945055

    申请日：2004-09-20

    申请人： Randall Powers ,  Christopher Ammann

    发明人： Randall Powers ,  Christopher Ammann

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33507 ,  H02M2001/0009

    摘要： A power supply having a flyback topology includes a flyback transformer and a current sense circuit that outputs a current signal indicative of a current output by the power supply. The current sense circuit includes a current sense transformer coupled to the flyback transformer.

    摘要翻译： 具有回扫拓扑的电源包括回扫变压器和电流检测电路，其输出表示电源的电流输出的电流信号。 电流检测电路包括耦合到回扫变压器的电流检测变压器。

    Local access port communications using near field induction
    3.
    发明申请
    Local access port communications using near field induction 有权
    使用近场感应的本地接入端口通信

    公开(公告)号：US20070188317A1

    公开(公告)日：2007-08-16

    申请号：US11354500

    申请日：2006-02-15

    申请人： Randall Powers

    发明人： Randall Powers

    IPC分类号： G08B1/08

    CPC分类号： G01R31/315 ,  G01R31/3025 ,  H01F2019/085

    摘要： A method for accessing an electronic circuit in an enclosure using near field induction is disclosed. The method involves attaching at least one local access port connector with an external transformer core partition to a near field induction port on an external non-conductive surface of a panel of the enclosure and generating at least one inductive field between the external transformer core partition and an internal transformer core partition. Without a direct electrical connection, the method provides for communicating with the electronic circuit through the at least one local access port connector of the panel using the at least one inductive field.

    摘要翻译： 公开了一种使用近场感应来访问外壳中的电子电路的方法。 该方法包括将至少一个本地进入端口连接器与外部变压器铁芯分隔件附接到外壳的面板的外部非导电表面上的近场感应端口，并且在外部变压器铁芯隔板和 内部变压器铁芯分隔。 在没有直接电连接的情况下，该方法提供使用至少一个感应场通过面板的至少一个本地存取端口连接器与电子电路进行通信。

    Auto-adaptation to packet size on a physical medium
    4.
    发明申请
    Auto-adaptation to packet size on a physical medium 有权
    自动适应物理介质上的数据包大小

    公开(公告)号：US20050152356A1

    公开(公告)日：2005-07-14

    申请号：US10756899

    申请日：2004-01-14

    申请人： Randall Powers

    发明人： Randall Powers

    IPC分类号： H04L12/56

    CPC分类号： H04L12/5601 ,  H04L47/36 ,  H04L2012/5646

    摘要： A method for automatically adapting to statically varying packet size is provided. The method includes receiving a stream of bytes over a physical medium. A packet size is determined from the bytes in the stream of bytes. Further, the determined packet size is used to process packets from the received byte stream.

    摘要翻译： 提供了一种自动适应静态变化的数据包大小的方法。 该方法包括在物理介质上接收字节流。 数据包大小由字节流中的字节确定。 此外，确定的分组大小用于处理来自接收的字节流的分组。

    Secondary regulation in a multiple output flyback topology
    5.
    发明申请
    Secondary regulation in a multiple output flyback topology 有权
    多输出回扫拓扑中的二次调节

    公开(公告)号：US20070041226A1

    公开(公告)日：2007-02-22

    申请号：US11205725

    申请日：2005-08-17

    申请人： Randall Powers

    发明人： Randall Powers

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33561

    摘要： In one embodiment, a power supply comprises a flyback transformer comprising a primary winding and at least two secondary windings. An output voltage is developed across a first one of the secondary windings. The power supply comprises a transistor coupled to the first one of the secondary windings. The output voltage is regulated about a nominal output voltage by operating the transistor in a linear mode when current is flowing through the first one of the secondary windings and by operating the transistor in an off mode when current is not flowing through the first one of the secondary windings.

    摘要翻译： 在一个实施例中，电源包括回扫变压器，其包括初级绕组和至少两个次级绕组。 跨越第一个次级绕组产生输出电压。 电源包括耦合到第一个次级绕组的晶体管。 当电流流过次级绕组中的第一个绕组时，通过在线性模式中操作晶体管，并且当电流不流过第一个次级绕组时将晶体管操作为截止模式，输出电压被调节在额定输出电压上 二次绕组。