利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

64 条记录 (耗时 0.027 秒)

    Switching power supply device, semiconductor device, and control method
    2.
    发明授权
    Switching power supply device, semiconductor device, and control method 有权
    开关电源装置，半导体装置和控制方法

    公开(公告)号：US07782638B2

    公开(公告)日：2010-08-24

    申请号：US11525716

    申请日：2006-09-22

    申请人： Kazuhiro Murata ,  Tetsuji Yamashita ,  Yoshihiro Mori

    发明人： Kazuhiro Murata ,  Tetsuji Yamashita ,  Yoshihiro Mori

    IPC分类号： H02H7/12

    CPC分类号： H02M3/33507 ,  H02M1/32

    摘要： A plurality of arrangements for detecting an overload of energy supplied to an output part enables selecting latch-off or auto-recovery overload protection by the operation of a switching device. When the drain current peak of the switching device exceeds a predetermined level denoting an overload, the FB pin voltage also rises to latch off, and when the drain current peak then reaches a maximum level, the CC pin voltage drops to a predetermined level and limits the oscillation period of the switching device because output power cannot be increased even if the load increases further. Latch-off overload protection can be applied when the drain current peak exceeding a predetermined level is detected, and auto-recovery overload protection can be applied when the CC pin voltage is detected to drop to a predetermined level.

    摘要翻译： 用于检测提供给输出部件的能量过载的多个布置使得能够通过开关装置的操作来选择闭锁或自动恢复过载保护。 当开关器件的漏极电流峰值超过表示过载的预定电平时，FB引脚电压也上升到锁存状态，当漏极电流峰值达到最大值时，CC引脚电压下降到预定值 即使负载进一步增加，开关器件的振荡周期也不能增加。 当检测到超过预定电平的漏极电流峰值时，可以应用锁存过载保护，并且当检测到CC引脚电压下降到预定电平时，可以应用自动恢复过载保护。

    Switching power supply device, semiconductor device, and control method
    3.
    发明申请
    Switching power supply device, semiconductor device, and control method 有权
    开关电源装置，半导体装置和控制方法

    公开(公告)号：US20070064358A1

    公开(公告)日：2007-03-22

    申请号：US11525716

    申请日：2006-09-22

    申请人： Kazuhiro Murata ,  Tetsuji Yamashita ,  Yoshihiro Mori

    发明人： Kazuhiro Murata ,  Tetsuji Yamashita ,  Yoshihiro Mori

    IPC分类号： H02H7/00

    CPC分类号： H02M3/33507 ,  H02M1/32

    摘要： A plurality of arrangements for detecting an overload of energy supplied to an output part enables selecting latch-off or auto-recovery overload protection by the operation of a switching device. When the drain current peak of the switching device exceeds a predetermined level denoting an overload, the FB pin voltage also rises to latch off, and when the drain current peak then reaches a maximum level, the CC pin voltage drops to a predetermined level and limits the oscillation period of the switching device because output power cannot be increased even if the load increases further. Latch-off overload protection can be applied when the drain current peak exceeding a predetermined level is detected, and auto-recovery overload protection can be applied when the CC pin voltage is detected to drop to a predetermined level.

    摘要翻译： 用于检测提供给输出部件的能量过载的多个布置使得能够通过开关装置的操作来选择闭锁或自动恢复过载保护。 当开关器件的漏极电流峰值超过表示过载的预定电平时，FB引脚电压也上升到锁存状态，当漏极电流峰值达到最大值时，CC引脚电压下降到预定值 即使负载进一步增加，开关器件的振荡周期也不能增加。 当检测到超过预定电平的漏极电流峰值时，可以应用锁存过载保护，并且当检测到CC引脚电压降低到预定电平时，可以应用自动恢复过载保护。

    Power supply regulator circuit and semiconductor device
    4.
    发明授权
    Power supply regulator circuit and semiconductor device 有权
    电源调节器电路和半导体器件

    公开(公告)号：US07265999B2

    公开(公告)日：2007-09-04

    申请号：US11393880

    申请日：2006-03-31

    申请人： Kazuhiro Murata ,  Yoshihiro Mori

    发明人： Kazuhiro Murata ,  Yoshihiro Mori

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33523

    摘要： A power supply regulation circuit is provided which can achieve a preferable constant current drooping characteristic without the need for a constant current control circuit on the secondary side. During a constant current operation, a switching element (1) is turned on so as to keep constant the on duty of secondary current passing through a secondary winding (110B) of a transformer (110), so that a constant current drooping characteristic is achieved. Further, at this moment, a current limit dictating the maximum value of drain current (ID) passing through the switching element (1) is changed between first and second levels during the on time of the switching element such that the drain current (ID) has a constant peak value.

    摘要翻译： 提供一种电源调节电路，其可以实现优选的恒定电流下降特性，而不需要次级侧上的恒定电流控制电路。 在恒流操作期间，开关元件（1）导通，以保持通过变压器（110）的次级绕组（110B）的二次电流的导通占空比，使得恒定电流下降特性为 实现了 此外，此时，在开关元件的导通时间，规定通过开关元件（1）的漏极电流（ID）的最大值的电流限制在第一和第二电平之间变化，使得漏极电流（ID） 具有恒定的峰值。

    Switching control circuit, semiconductor device and switching power source apparatus
    5.
    发明授权
    Switching control circuit, semiconductor device and switching power source apparatus 有权
    开关控制电路，半导体装置和开关电源装置

    公开(公告)号：US08159846B2

    公开(公告)日：2012-04-17

    申请号：US12499308

    申请日：2009-07-08

    申请人： Keita Kawabe ,  Kazuhiro Murata ,  Yoshihiro Mori ,  Naohiko Morota

    发明人： Keita Kawabe ,  Kazuhiro Murata ,  Yoshihiro Mori ,  Naohiko Morota

    IPC分类号： H02M7/539

    CPC分类号： H02M3/33507 ,  H02M2001/0038

    摘要： At the starting time and an overload time in which the output voltage of the switching power source apparatus is low, if an overcurrent state, in which the ON period of the switching device becomes short and a current not less than the current limit value of the switching device flows through the switching device, occurs, this overcurrent state is detected. The blanking period of a blanking pulse signal is made shorter than the blanking period that is obtained during steady operation, and the ON period of the switching device is made shorter. Hence, the device current flowing through the switching device can be made small in each pulse for the switching operation, and, at the same time, the device current is suppressed from increasing each time a pulse for the switching operation is generated.

    摘要翻译： 在开始时刻以及开关电源装置的输出电压低的过载时间，如果开关装置的导通期间变短的电流状态和不小于开关电源装置的电流限制值的电流 开关器件流过开关器件，发生该过电流状态。 消隐脉冲信号的消隐周期短于在稳定运行期间获得的消隐周期，并且切换装置的导通周期变短。 因此，在开关动作的每个脉冲中，流过开关装置的器件电流可以变小，并且同时，每当产生用于切换操作的脉冲时，抑制器件电流增加。

    SWITCHING CONTROL CIRCUIT, SEMICONDUCTOR DEVICE AND SWITCHING POWER SOURCE APPARATUS
    6.
    发明申请
    SWITCHING CONTROL CIRCUIT, SEMICONDUCTOR DEVICE AND SWITCHING POWER SOURCE APPARATUS 有权
    切换控制电路，半导体器件和开关电源设备

    公开(公告)号：US20100008106A1

    公开(公告)日：2010-01-14

    申请号：US12499308

    申请日：2009-07-08

    申请人： Keita Kawabe ,  Kazuhiro Murata ,  Yoshihiro Mori ,  Naohiko Morota

    发明人： Keita Kawabe ,  Kazuhiro Murata ,  Yoshihiro Mori ,  Naohiko Morota

    IPC分类号： H02M3/335 ,  H02H7/122 ,  H02M7/44

    CPC分类号： H02M3/33507 ,  H02M2001/0038

    摘要： At the starting time and an overload time in which the output voltage of the switching power source apparatus is low, if an overcurrent state, in which the ON period of the switching device becomes short and a current not less than the current limit value of the switching device flows through the switching device, occurs, this overcurrent state is detected. The blanking period of a blanking pulse signal is made shorter than the blanking period that is obtained during steady operation, and the ON period of the switching device is made shorter. Hence, the device current flowing through the switching device can be made small in each pulse for the switching operation, and, at the same time, the device current is suppressed from increasing each time a pulse for the switching operation is generated.

    摘要翻译： 在开始时刻以及开关电源装置的输出电压低的过载时间，如果开关装置的导通期间变短的电流状态和不小于开关电源装置的电流限制值的电流 开关器件流过开关器件，发生该过电流状态。 消隐脉冲信号的消隐周期短于在稳定运行期间获得的消隐周期，并且切换装置的导通周期变短。 因此，在开关动作的每个脉冲中，流过开关装置的器件电流可以变小，并且同时，每当产生用于切换操作的脉冲时，抑制器件电流增加。

    SWITCHING POWER SUPPLY CIRCUIT
    8.
    发明申请
    SWITCHING POWER SUPPLY CIRCUIT 审中-公开
    切换电源电路

    公开(公告)号：US20090108818A1

    公开(公告)日：2009-04-30

    申请号：US12255760

    申请日：2008-10-22

    申请人： Hiroko Murayama ,  Kazuhiro Murata ,  Yoshihiro Mori

    发明人： Hiroko Murayama ,  Kazuhiro Murata ,  Yoshihiro Mori

    IPC分类号： G05F1/10

    CPC分类号： H02M3/156

    摘要： According to the present invention, an auxiliary power supply 10 which supplies a power supply voltage to a photocoupler 9 for feeding back fluctuations in the voltage of an output part 2 is only made up of a diode for passing a current only through the collector of a phototransistor 92 from a positive voltage terminal 21 of the output part 2, and a capacitor 105 inserted between the joint of a source terminal 34 of a three-terminal switching regulator 3 and a coil 5 and the joint of the diode 104 and the collector of the phototransistor 92.

    摘要翻译： 根据本发明，向光电耦合器9提供电源电压以辅助输出部分2的电压的波动的辅助电源10仅由用于使电流仅通过集电极的二极管构成 来自输出部分2的正电压端子21的光电晶体管92和插入在三端开关调节器3的源极端子34的接头和线圈5之间的电容器105以及二极管104和集电极 光电晶体管92。

    Power supply regulator circuit and semiconductor device
    9.
    发明申请
    Power supply regulator circuit and semiconductor device 有权
    电源调节器电路和半导体器件

    公开(公告)号：US20060250823A1

    公开(公告)日：2006-11-09

    申请号：US11393880

    申请日：2006-03-31

    申请人： Kazuhiro Murata ,  Yoshihiro Mori

    发明人： Kazuhiro Murata ,  Yoshihiro Mori

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33523

    摘要： A power supply regulation circuit is provided which can achieve a preferable constant current drooping characteristic without the need for a constant current control circuit on the secondary side. During a constant current operation, a switching element (1) is turned on so as to keep constant the on duty of secondary current passing through a secondary winding (110B) of a transformer (110), so that a constant current drooping characteristic is achieved. Further, at this moment, a current limit dictating the maximum value of drain current (ID) passing through the switching element (1) is changed between first and second levels during the on time of the switching element such that the drain current (ID) has a constant peak value.

    摘要翻译： 提供一种电源调节电路，其可以实现优选的恒定电流下降特性，而不需要次级侧上的恒定电流控制电路。 在恒流操作期间，开关元件（1）导通，以保持通过变压器（110）的次级绕组（110B）的二次电流的导通占空比，使得恒定电流下降特性为 实现了 此外，此时，在开关元件的导通时间，规定通过开关元件（1）的漏极电流（ID）的最大值的电流限制在第一和第二电平之间变化，使得漏极电流（ID） 具有恒定的峰值。