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    • 35. 发明授权
    • Parallelized power supply system providing uninterrupted operation
    • 并联电源系统不间断运行
    • US5638264A
    • 1997-06-10
    • US544240
    • 1995-10-17
    • Katsunori HayashiAkihiko KanoudaTadashi TakahashiHideaki HorieKenichi OndaYasuo AbeMasayoshi Sato
    • Katsunori HayashiAkihiko KanoudaTadashi TakahashiHideaki HorieKenichi OndaYasuo AbeMasayoshi Sato
    • G05F1/577H02J1/10H02M7/155
    • G05F1/577H02J1/102H02J1/108Y10T307/707
    • A parallelized power supply system including a plurality of switching power supplies each having a circuit for limiting rush current generated when a main switch is turned on. This system can be installed in an apparatus which requires the functions such as power uninterrupted operation and live wire insertion/dismount. Each switching power supply has another power supply for driving the rush current limiter circuit and a relay circuit for supplying relay driving current and making a connection of relay contacts after a predetermined time lapse after the operation start of the switching power supply. An a.c. power is supplied via the relay contacts to each switching power supply. The relay driving time set in the rush current limiter circuit is different for each switching power supply. Accordingly, concentration and excess of rush current when the relay is driven can be suppressed, and sparks at contact pins of a connector to be otherwise generated when the switching power supply is mounted on the connector, can be eliminated so that radiation noises and connector breakage can be avoided. Each of the switching power supplies connected in parallel has a current detecting resistor connected between the low voltage side of a load and the low voltage side of a voltage regulator d.c. output, and at least one operational amplifier for detecting a change in the d.c. output, the negative power supply terminal of the operational amplifier being connected to the current detecting resistor at its one end on the load side.
    • 一种并联电源系统,包括多个开关电源,每个开关电源具有用于限制当主开关导通时产生的冲击电流的电路。 该系统可以安装在需要诸如电源不间断操作和带电线插入/卸载等功能的设备中。 每个开关电源具有用于驱动冲击电流限制器电路的另一个电源和用于在开关电源的操作开始之后的预定时间经过之后提供继电器驱动电流和继电器触点的连接的继电器电路。 一个 电源通过继电器触点提供给每个开关电源。 在冲击电流限制电路中设置的继电器驱动时间对于每个开关电源是不同的。 因此,可以抑制继电器驱动时的集中和超过冲击电流,并且可以消除当开关电源安装在连接器上否则产生的连接器的接触引脚上的火花,使得辐射噪声和连接器断裂 可以避免。 每个并联的开关电源具有连接在负载的低电压侧和电压调节器d.c.的低压侧之间的电流检测电阻器。 输出,以及用于检测直流电的变化的至少一个运算放大器。 运算放大器的负电源端在负载侧的一端连接到电流检测电阻。
    • 38. 发明授权
    • Power converter, control method of power converter, and hard disk drive
    • 电源转换器,电源转换器的控制方法和硬盘驱动器
    • US08605464B2
    • 2013-12-10
    • US13591264
    • 2012-08-22
    • Takashi SaseAkihiko KanoudaYosuke TsuyukiHiroyuki Shoji
    • Takashi SaseAkihiko KanoudaYosuke TsuyukiHiroyuki Shoji
    • H02M3/335
    • H02M1/4258H02M2001/0064Y02B70/126
    • A power converter includes a first inductor, a rectifier arm, a first switch arm including a first and second switch circuits, a second switch arm including a third switch circuit and a first capacitor, a LC serial circuit, a Transformer, a rectification and smoothing circuit connected to secondary winding of the transformer, and a control circuit to perform on-off control of the three switch circuits. The rectifier arm, the first and second switch arms and the LC serial circuit are connected in parallel with each other. The LC serial circuit and primary winding of the transformer are connected. AC power supply is connected to the rectifier arm via the first inductor. The control circuit includes an output voltage control circuit to control output voltage at specific setting value, an intermediate voltage control circuit to control intermediate voltage at specific setting value, and a power factor correction control circuit.
    • 电力转换器包括第一电感器,整流器臂,包括第一和第二开关电路的第一开关臂,包括第三开关电路和第一电容器的第二开关臂,LC串联电路,变压器,整流和平滑 连接到变压器的次级绕组的电路,以及用于执行三个开关电路的开关控制的控制电路。 整流臂,第一和第二开关臂和LC串联电路彼此并联连接。 变压器的LC串联电路和初级绕组连接。 交流电源通过第一电感连接到整流臂。 控制电路包括用于以特定设定值控制输出电压的输出电压控制电路,以特定设定值控制中间电压的中间电压控制电路和功率因数校正控制电路。