Negative lock loop and control method for a flyback voltage converter
    1.
    发明授权
    Negative lock loop and control method for a flyback voltage converter 有权
    用于反激式电压转换器的负锁定环路和控制方法

    公开(公告)号:US08373404B2

    公开(公告)日:2013-02-12

    申请号:US12591079

    申请日:2009-11-06

    IPC分类号: G05F1/00 H02M3/335

    CPC分类号: H02M3/33507 H02M3/33523

    摘要: A flyback voltage converter includes a transformer having a primary winding and a secondary winding, a switch serially connected to the primary winding for being switched to produce a current in the secondary winding, and a negative lock loop to adjust the peak value of the current in the secondary winding according to a current conduction time during which the current in the secondary winding is higher than a current threshold, such that the peak value of the current in the secondary winding will be in inverse proportion to the time.

    摘要翻译: 回扫电压转换器包括具有初级绕组和次级绕组的变压器,串联连接到初级绕组的开关用于切换以产生次级绕组中的电流,以及负锁定环以调整电流的峰值 次级绕组根据次级绕组中的电流的电流导通时间高于电流阈值,使得次级绕组中的电流的峰值将与时间成反比。

    Negative lock loop and control method for a flyback voltage converter
    2.
    发明申请
    Negative lock loop and control method for a flyback voltage converter 有权
    用于反激式电压转换器的负锁定环路和控制方法

    公开(公告)号:US20100117617A1

    公开(公告)日:2010-05-13

    申请号:US12591079

    申请日:2009-11-06

    IPC分类号: G05F1/618

    CPC分类号: H02M3/33507 H02M3/33523

    摘要: A flyback voltage converter includes a transformer having a primary winding and a secondary winding, a switch serially connected to the primary winding for being switched to produce a current in the secondary winding, and a negative lock loop to adjust the peak value of the current in the secondary winding according to a current conduction time during which the current in the secondary winding is higher than a current threshold, such that the peak value of the current in the secondary winding will be in inverse proportion to the time.

    摘要翻译: 回扫电压转换器包括具有初级绕组和次级绕组的变压器,串联连接到初级绕组的开关用于切换以产生次级绕组中的电流,以及负锁定环以调整电流的峰值 次级绕组根据次级绕组中的电流的电流导通时间高于电流阈值,使得次级绕组中的电流的峰值将与时间成反比。

    Load-Dependent Frequency Jittering Circuit and Load-Dependent Frequency Jittering Method
    5.
    发明申请
    Load-Dependent Frequency Jittering Circuit and Load-Dependent Frequency Jittering Method 有权
    负载相关的频率抖动电路和负载相关的频率抖动方法

    公开(公告)号:US20090115391A1

    公开(公告)日:2009-05-07

    申请号:US11935558

    申请日:2007-11-06

    IPC分类号: G05F1/46 H03K3/017

    CPC分类号: H03K3/72

    摘要: The present invention discloses a load-dependent frequency jittering circuit, comprising: a load condition detection circuit for receiving a switching signal and generating an output according to a load condition; a number generator for receiving the output of the load condition detection circuit and generating a number; a digital to analog converter for converting the output of the number generator to an analog signal; and an oscillator for generating a jittered frequency according to the output of the digital to analog converter.

    摘要翻译: 本发明公开了一种负载相关的频率抖动电路,包括:负载状态检测电路,用于接收开关信号并根据负载条件产生输出; 数字发生器,用于接收负载状态检测电路的输出并产生一个数字; 用于将数字发生器的输出转换为模拟信号的数模转换器; 以及用于根据数模转换器的输出产生抖动频率的振荡器。

    Arrangement and method for an integrated protection for a power system
    8.
    发明申请
    Arrangement and method for an integrated protection for a power system 有权
    电力系统综合保护的安排和方法

    公开(公告)号:US20070058310A1

    公开(公告)日:2007-03-15

    申请号:US11518446

    申请日:2006-09-11

    IPC分类号: H02H3/20

    CPC分类号: H02H5/041 H02H3/087 H02H3/202

    摘要: For protecting a power system, two or three of over current, thermal and under voltage protection circuits are integrated as one protection circuit but operate independently, and one or more protection points thereof are adjusted dynamically in response to detected condition of the power system. Specifically, using voltage and current conditions in the power system to modify the over current protection and the thermal protection maximizes the performance of the power system and covers the process bias in the circuits.

    摘要翻译: 为了保护电力系统,两个或三个过流,过热和欠压保护电路被集成为一个保护电路,但是独立操作,并且响应于电力系统的检测到的状态来动态地调整其一个或多个保护点。 具体来说,使用电力系统中的电压和电流条件修改过电流保护和热保护,最大限度地提高电力系统的性能,并覆盖电路中的过程偏置。

    Constant current source with threshold voltage and channel length modulation compensation
    9.
    发明授权
    Constant current source with threshold voltage and channel length modulation compensation 失效
    具有阈值电压和通道长度调制补偿的恒流源

    公开(公告)号:US06906651B2

    公开(公告)日:2005-06-14

    申请号:US10758841

    申请日:2004-01-16

    IPC分类号: G05F3/26 H03K17/041 H03M1/66

    CPC分类号: G05F3/262 H03K17/04106

    摘要: A constant current source with threshold voltage and channel length modulation includes first, second, third, fourth and fifth MOS transistors. Each of the MOS transistors has gate, first and second terminals. The first terminal of the second MOS transistor is coupled to loading impedance, and its second terminal is coupled with the first terminal of the first MOS transistor. The gate terminal and first terminal of the third MOS transistor are together coupled to the gate terminal of the second MOS transistor, and its second terminal is coupled to the first terminal of the fourth MOS transistor. The gate terminal and first terminal of the fourth MOS transistor are coupled to the gate terminal of the first MOS transistor, and its second terminal is coupled to a first reference voltage. The gate terminal and second terminal of the fifth MOS transistor are respectively coupled to a second reference voltage and a third reference voltage, and its first terminal is coupled to the gate terminal and first terminal of the third MOS transistor.

    摘要翻译: 具有阈值电压和沟道长度调制的恒流源包括第一,第二,第三,第四和第五MOS晶体管。 每个MOS晶体管具有栅极,第一和第二端子。 第二MOS晶体管的第一端子耦合到负载阻抗,并且其第二端子与第一MOS晶体管的第一端子耦合。 第三MOS晶体管的栅极端子和第一端子一起耦合到第二MOS晶体管的栅极端子,并且其第二端子耦合到第四MOS晶体管的第一端子。 第四MOS晶体管的栅极端子和第一端子耦合到第一MOS晶体管的栅极端子,并且其第二端子耦合到第一参考电压。 第五MOS晶体管的栅极端子和第二端子分别耦合到第二参考电压和第三参考电压,并且其第一端子耦合到第三MOS晶体管的栅极端子和第一端子。

    Single ram multiple-delay variable delay circuit
    10.
    发明授权
    Single ram multiple-delay variable delay circuit 失效
    单脉冲多延时可变延迟电路

    公开(公告)号:US5479128A

    公开(公告)日:1995-12-26

    申请号:US213852

    申请日:1994-03-16

    IPC分类号: G11C8/04 G11C7/00

    CPC分类号: G11C8/04

    摘要: A multiple-delay variable delay circuit uses a random access memory (RAM) array to provide adjustable delay of a block of input data, such as previously necessitated use of an extensive shift register configuration. A single RAM array, having a given capacity, is used to economically provide individual delays to a plurality of blocks of input data, with the aggregate of the individual delays not exceeding the capacity of the single RAM array. Time-shared use of a high speed RAM enables simultaneous single-port processing of data blocks, with delay control circuits providing utilization of separate portions of the RAM capacity, to provide individual delays resulting from successive read/write cycles utilizing a desired total of incremental delays. Simplified delay control circuits provide manufacturing and operating economies with single-port or multi-port RAM arrays.

    摘要翻译: 多延迟可变延迟电路使用随机存取存储器(RAM)阵列来提供输入数据块的可调节延迟,诸如先前必须使用的大量移位寄存器配置。 具有给定容量的单个RAM阵列用于经济地向多个输入数据块提供单独的延迟,其中各个延迟的总和不超过单个RAM阵列的容量。 高速RAM的时间共享使用能够同时实现数据块的单端口处理,延迟控制电路提供对RAM容量的分开部分的利用,以提供由连续读/写周期产生的各种延迟,利用所需的总计增量 延误 简化的延迟控制电路为单端口或多端口RAM阵列的制造和运营经济提供了便利。