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    • 1. 发明授权
    • Backup power supply
    • 备用电源
    • US07157810B2
    • 2007-01-02
    • US10754692
    • 2004-01-12
    • Akihiko KanoudaSatoru MasuyamaMasato IsogaiRyouhei SagaKenichi OndaNorikazu Tokunaga
    • Akihiko KanoudaSatoru MasuyamaMasato IsogaiRyouhei SagaKenichi OndaNorikazu Tokunaga
    • H02J7/00
    • H02J9/061Y10T307/549Y10T307/587Y10T307/615Y10T307/625
    • The present invention reduces the capacity of the AC-DC converter for the peak load and realizes low price and reduction in the volume of the power unit. The apparatus built-in backup power supply has the peak cut function for sharing a part of the load current at the time of peak load from the secondary battery. The two-way DC-DC converter 5 and the secondary battery 4 are installed on the DC output side of the AC-DC converter 3 and a current larger than a predetermined peak cut level is discharged from the secondary battery 4 at the time of peak load. Further, when the load is less than the predetermined cut level, the secondary battery 4 is charged from the AC-DC converter 3 via the two-way DC-DC converter 5. Furthermore, a most suitable peak cut level according to the SOC of the secondary battery and load pattern is automatically set and dynamically changed.
    • 本发明降低了AC-DC转换器对峰值负载的容量,实现了低价格和功率单元体积的减小。 内置备用电源的设备具有峰值功能,用于在二次电池峰值负载时共享部分负载电流。 双向DC-DC转换器5和二次电池4安装在AC-DC转换器3的DC输出侧,并且在峰值时从二次电池4放出大于预定的峰值切断电平的电流 加载。 此外,当负载小于预定切断电平时,二次电池4经由双向DC-DC转换器5从AC-DC转换器3充电。 此外,根据二次电池的SOC和负载图案的最合适的峰值切割电平被自动设定并动态地改变。
    • 5. 发明授权
    • Direct-current power-supply apparatus, control circuit thereof and semiconductor integrated circuit device for power supply
    • 直流供电装置,其控制电路和用于电源的半导体集成电路装置
    • US06496395B2
    • 2002-12-17
    • US09809997
    • 2001-03-14
    • Norikazu TokunagaKenichi OndaTadashi TakahashiTakeshi OnakaRyohei SagaKatsunori Hayashi
    • Norikazu TokunagaKenichi OndaTadashi TakahashiTakeshi OnakaRyohei SagaKatsunori Hayashi
    • H02M324
    • H02M3/33592Y02B70/1475
    • A direct-current power-supply apparatus provided by the present invention comprises a switching converter for converting an input direct-current power into another direct-current power, a control circuit and an isolation means. The switching converter has a main switch device for generating a pulse voltage from the direct-current input, a synchronous-rectification circuit on the output side of the switching converter and a reverse-current-blocking switch. On the other hand, the control circuit includes a PWM formation unit for driving the main switch device, a synchronous-rectification control unit for controlling an operation to drive the synchronous-rectification circuit and a driving control unit for controlling an operation to drive the reverse-current-blocking switch. The control circuit operates by using a common electric potential appearing on the output side of the switching converter as a reference electric potential. A driving signal is applied to the main switch device through the isolation means. Thus, the direct-current power-supply apparatus is controlled without need for exchanges of the signal for driving the main switch device and a signal isolated between control devices including a switch for synchronous rectification.
    • 本发明所提供的直流电源装置包括一个用于将输入直流电转换为另一直流电源的开关转换器,一控制电路和一隔离装置。 开关转换器具有用于从直流输入产生脉冲电压的主开关装置,开关转换器的输出侧的同步整流电路和反向阻断开关。 另一方面,控制电路包括用于驱动主开关装置的PWM形成单元,用于控制驱动同步整流电路的操作的同步整流控制单元和用于控制驱动逆变器的操作的驱动控制单元 电流阻断开关。 控制电路通过使用出现在开关转换器的输出侧的公共电位作为参考电位来工作。 通过隔离装置将驱动信号施加到主开关装置。 因此,不需要交换用于驱动主开关装置的信号和在包括用于同步整流的开关的控制装置之间隔离的信号,可以控制直流电源装置。
    • 7. 发明授权
    • Inverter control apparatus
    • 变频器控制装置
    • US4122516A
    • 1978-10-24
    • US811259
    • 1977-06-29
    • Norikazu Tokunaga
    • Norikazu Tokunaga
    • G05F5/00H02J9/06H02M7/515H02M7/517H02M7/00
    • H02J9/062H02M7/517Y10T307/615
    • An apparatus for controlling the operation of an inverter which converts DC power obtained by rectification of a received AC power or DC power received from a battery which is alternatively actuated in case of an AC power supply failure or the like, into AC power. The inverter control apparatus includes a first control means which detects the output voltage of the inverter to thereby control the operation of the inverter in accordance with the detected value of the inverter output voltage. The inverter control apparatus further includes a detector for detecting variations in the input voltage of the inverter and second control means for controlling the width of the firing angle which is controlled by the first control means, in accordance with the detected value of the inverter input voltage variations, so that variations in the output voltage of the inverter may be suppressed even in the case of occurrence of variations in the input voltage of the inverter.
    • 一种用于控制逆变器的操作的装置,其将从AC电源故障等的交替供电故障时交替地致动的电池接收到的接收的AC电力或DC电力获得的DC功率转换为AC电力。 逆变器控制装置包括第一控制装置,其检测逆变器的输出电压,从而根据反相器输出电压的检测值来控制逆变器的运行。 逆变器控制装置还包括检测器,用于检测逆变器的输入电压的变化和第二控制装置,用于根据反相器输入电压的检测值来控制由第一控制装置控制的触发角的宽度 因此即使在逆变器的输入电压发生变化的情况下也能够抑制逆变器的输出电压的变动。
    • 8. 发明授权
    • Parallel power source system
    • 并联电源系统
    • US06738270B2
    • 2004-05-18
    • US10003233
    • 2001-12-06
    • Ryohei SagaNorikazu TokunagaMasahiro Hamaogi
    • Ryohei SagaNorikazu TokunagaMasahiro Hamaogi
    • H02H710
    • H02M3/285H02J1/102Y10T307/50Y10T307/544
    • Disclosed is a parallel power source system which has a plurality of power supply units connected in parallel to one another and is designed in such a way that a voltage loss in an inverse-current preventing circuit provided in each power supply unit is reduced, the flexibility of the system design including lengths of power source wirings is maintained and when a short circuit failure occurs in some power supply unit, power supply from the other power supply units continues stably without significantly changing a voltage supplied to a load. The inverse-current preventing circuit comprises an MOS transistor that is intervened in series in an output path in each power supply unit and forms a switch circuit which is normally on, and a potential difference response circuit which operates to turn off the MOS transistor when a potential on the current-output side of the MOS transistor becomes greater than a potential on the current-input side thereof by at least a given amount.
    • 公开了一种并联电源系统,其具有彼此并联连接的多个电源单元,并且被设计成使得设置在每个电源单元中的逆流防止电路中的电压损耗减小,灵活性 的系统设计,包括电源布线的长度,并且当在一些电源单元中发生短路故障时,来自其它电源单元的电源继续稳定而不显着改变提供给负载的电压。 反向电流防止电路包括串联在每个电源单元中的输出路径中的MOS晶体管,并且形成通常导通的开关电路,以及电位差响应电路,其在a MOS晶体管的电流输出侧的电位变得比电流输入侧的电位大至少一定量。