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    • 32. 发明申请
    • DC-DC CONVERTER SYSTEM
    • DC-DC转换器系统
    • US20080212345A1
    • 2008-09-04
    • US11886062
    • 2006-03-17
    • Tsuyoshi YamashitaMamoru TodaKenji Otsuka
    • Tsuyoshi YamashitaMamoru TodaKenji Otsuka
    • H02H7/10
    • H02J7/047H02M1/32H02M3/33592Y02B40/90Y02B70/1475
    • A DC-DC converter system is provided to improve switching control operation of a battery charging DC-DC converter (3) in an overheat temperature state without necessitating complication of a control unit (4). The control unit (4) performs output voltage limitation as well as output current limitation when the temperature of the DC-DC converter (3) is in an overheat temperature state in the vicinity of its operation stop temperature. With this capability, the output current and the output voltage can be limited, and therefore overheating of a power switching device (32) of the DC-DC converter (3) can be inhibited. In an alternative embodiment the switching frequency of the power switching device (32) is limited.
    • 提供一种DC-DC转换器系统,用于在不需要控制单元(4)的复杂性的情况下改善处于过热温度状态的电池充电DC-DC转换器(3)的开关控制操作。 当DC-DC转换器(3)的温度在其运行停止温度附近处于过热温度状态时,控制单元(4)执行输出电压限制以及输出电流限制。 通过这种能力,可以限制输出电流和输出电压,因此可以抑制DC-DC转换器(3)的电力开关装置(32)的过热。 在替代实施例中,功率开关装置(32)的开关频率受到限制。
    • 33. 发明申请
    • DC-DC CONVERTER WITH INTEGRATED TRANSFORMER ASSEMBLY COMPOSED OF TRANSFORMER PAIR
    • 具有变压器对组成的集成变压器总成的DC-DC转换器
    • US20080101097A1
    • 2008-05-01
    • US11928259
    • 2007-10-30
    • Koji KawasakiTsuyoshi Yamashita
    • Koji KawasakiTsuyoshi Yamashita
    • H02M3/335H01F5/00
    • H01F30/06H01F17/043H01F27/255H01F30/04H01F30/12H02M3/33569H02M7/003
    • In an integrated transformer assembly, a common coil member has a first portion alternately wound, for each one electromagnetic turn, around the first core member and around the second core member. The first portion of the common primary coil member wound around the first core member is magnetically linked to the first magnetic path thereof so as to constitute a first primary coil. The first portion of the common primary coil member wound around the second core member is magnetically linked to the second magnetic path thereof so as to constitute a second primary coil. The first and second primary coils are connected in series. A secondary coil member has first and second secondary coils. The first and second secondary coils are arranged to be magnetically linked to the first and second primary coils of the common primary coil member, respectively.
    • 在集成变压器组件中,公共线圈构件具有围绕第一芯构件并且围绕第二芯构件交替地缠绕的第一部分,用于每一个电磁转向。 卷绕在第一芯部件上的公共初级线圈部件的第一部分与其第一磁路磁性连接以构成第一初级线圈。 卷绕在第二芯体上的公共初级线圈构件的第一部分与其第二磁路磁性连接,构成第二初级线圈。 第一和第二初级线圈串联连接。 次级线圈构件具有第一和第二次级线圈。 第一和第二次级线圈被布置成分别与公共初级线圈构件的第一和第二初级线圈磁连接。
    • 39. 发明授权
    • Optical transmission device
    • 光传输装置
    • US4996683A
    • 1991-02-26
    • US420373
    • 1989-10-12
    • Tsuyoshi YamashitaGoro KobayashiHisanori NakamuraYouichi ShibataToshihiro Mori
    • Tsuyoshi YamashitaGoro KobayashiHisanori NakamuraYouichi ShibataToshihiro Mori
    • H04B10/25
    • H04B10/2503
    • An optical transmission device for interconnecting an optical full duplex transmission line and a half duplex transmission line. When a start bit of a data block of an electrical signal received from the half duplex transmission line is detected, a maintaining signal to maintain the same transmission direction is generated during which the data block can be transmitted. An optical signal is received from the optical full duplex transmission line and converted into an electrical signal. Similarly, a maintaining signal to maintain the same transmission direction is generated. In response to either one of the two maintaining signals, passage or stopping of signals by a driver for sending out an electrical signal to the half duplex transmission line and a receiver for receiving an electrical signal from the half duplex-transmission line are controlled. Possible interference of data is prevented and the transmission direction is changed over in this manner. Further, the level of an optical signal is monitored, and when the optical signal level becomes lower than a reference level, an abnormality warning data is transmitted succeeding to the data block.
    • 一种用于互连光学全双工传输线和半双工传输线的光传输设备。 当检测到从半双工传输线接收到的电信号的数据块的起始位时,产生保持相同​​传输方向的维持信号,在该维持信号期间可以发送数据块。 从光学全双工传输线接收光信号并转换成电信号。 类似地,产生维持相同传输方向的维持信号。 响应于两个保持信号中的任一个,控制由驱动器发送电信号到半双工传输线路的信号的通过或停止以及用于从半双工传输线路接收电信号的接收机。 可以防止数据的干扰,并以这种方式改变传输方向。 此外,监视光信号的电平,并且当光信号电平变得低于参考电平时,在数据块之后发送异常警告数据。