公开(公告)号：US20110032733A1

公开(公告)日：2011-02-10

申请号：US12851144

申请日：2010-08-05

申请人： Yasuto WATANABE ,  Mitsuaki HIRAKAWA

发明人： Yasuto WATANABE ,  Mitsuaki HIRAKAWA

IPC分类号： H02M3/335

CPC分类号： H02M3/1584 ,  H02J1/10 ,  H02J2001/004 ,  Y10T307/50 ,  Y10T307/658

摘要： A DC-DC converter has a first-voltage-side port, a second-voltage-side port, and a third-voltage-side port, and performs, at different timings, an operation of boosting a first voltage to a third voltage and an operation of bucking a second voltage to the third voltage. A power supplying system includes a fuel cell, a secondary battery, an accessory system, the DC-DC converter, and another DC-DC converter connected between the fuel cell and a motor, and boosting the first voltage of the fuel cell to a fourth voltage to supply power to the motor through an inverter. The former DC-DC converter has the first-voltage-side port connected to the fuel cell, has the second-voltage-side port connected to the secondary battery, and has the third-voltage-side port connected to the accessory system.

摘要翻译： DC-DC转换器具有第一电压侧端口，第二电压侧端口和第三电压侧端口，并且在不同的定时执行将第一电压升压到第三电压的操作，以及 将第二电压抵消到第三电压的操作。 供电系统包括燃料电池，二次电池，附件系统，DC-DC转换器和连接在燃料电池和电动机之间的另一个DC-DC转换器，并将燃料电池的第一电压升压到第四 电压通过变频​​器向电机供电。 前一个DC-DC转换器具有连接到燃料电池的第一电压侧端口，具有连接到二次电池的第二电压侧端口，并且具有连接到附件系统的第三电压侧端口。

公开(公告)号：US20100244798A1

公开(公告)日：2010-09-30

申请号：US12750785

申请日：2010-03-31

申请人： Somei NAKATOMI ,  Yasuto WATANABE ,  Keigo ANDOH ,  Mitsuaki HIRAKAWA

发明人： Somei NAKATOMI ,  Yasuto WATANABE ,  Keigo ANDOH ,  Mitsuaki HIRAKAWA

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M3/158

摘要： A DC-DC converter includes first and second capacitors connected in series, a switching part, and a control circuit part which includes a voltage difference calculating part for calculating a difference between voltages of the first and second capacitors, a duty ratio controller for controlling duty ratio of on- and OFF-durations to decrease the voltage difference of the first and second capacitors on the basis of the calculated difference. A power supplying system including the DC-DC converter controls balance between first and second capacitors in voltage on the basis of the powering/regenerating discriminating signal.

摘要翻译： DC-DC转换器包括串联连接的第一和第二电容器，开关部分和控制电路部分，其包括用于计算第一和第二电容器的电压之间的差的电压差计算部分，用于控制工作的占空比控制器 基于所计算的差，开和关持续时间的比率以减小第一和第二电容器的电压差。 包括DC-DC转换器的供电系统基于供电/再生鉴别信号来控制第一和第二电容器之间的电压平衡。

公开(公告)号：US20100066341A1

公开(公告)日：2010-03-18

申请号：US12537440

申请日：2009-08-07

申请人： Yasuto WATANABE ,  Satoshi Hashino ,  Mitsuaki Hirakawa

发明人： Yasuto WATANABE ,  Satoshi Hashino ,  Mitsuaki Hirakawa

IPC分类号： G05F3/08

CPC分类号： H02M3/158

摘要： A power converter includes an input unit, an output unit, first and second capacitors connected in series, a first electric conduction control device, a second electric conduction control device, a third electric conduction control device, and a fourth electric conduction control device, and a control circuit for performing on/off control on those electric conduction control devices. The first electric conduction control device and the fourth electric conduction control device have a first path through which a current flowing between the input unit and the output unit is allowed to flow in one direction, and a second path which has a switch function of allowing the current flowing between the input unit and the output unit to flow through or shutting off such a current.

摘要翻译： 电力转换器包括输入单元，输出单元，串联连接的第一和第二电容器，第一导电控制装置，第二导电控制装置，第三导电控制装置和第四导电控制装置，以及 用于对这些导电控制装置进行开/关控制的控制电路。 第一导电控制装置和第四导电控制装置具有第一路径，允许在一个方向上流过在输入单元和输出单元之间流动的电流，第二路径具有允许 在输入单元和输出单元之间流动的电流流过或关闭这样的电流。