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    • 1. 发明授权
    • Series resonant converter
    • 串联谐振转换器
    • US08107263B2
    • 2012-01-31
    • US12954700
    • 2010-11-26
    • Shingo UenoShinichi OmakiAtsushi SaitoKiyomi Watanabe
    • Shingo UenoShinichi OmakiAtsushi SaitoKiyomi Watanabe
    • H02M3/335
    • H02M3/335Y02B70/1433
    • A series resonant converter circuit that reduces power loss is provided that includes an inverter circuit having at least a pair of first and second switching elements that is connected between DC input terminals, a transformer connected to this inverter circuit, a resonant inductance means that are connected in series to a primary winding wire or a secondary winding wire of the transformer, a primary-side resonant capacitor that is connected in series to the resonant inductance means through the first or second switching element, first and second secondary-side resonant capacitors that are connected to each other in series between the DC input terminals, first and second unidirectional elements that are connected to each other in series between the DC output terminals, and a resonant inductance means that cooperates with resonant capacitance from the primary-side resonant capacitor and the first and second secondary-side resonant capacitors to resonate in series.
    • 提供了一种降低功率损耗的串联谐振变换器电路,其包括具有至少一对第一和第二开关元件的逆变器电路,所述第一和第二开关元件连接在DC输入端子之间,连接到该逆变器电路的变压器,连接的谐振电感装置 与变压器的初级绕组线或次级绕组串联连接的初级侧谐振电容器,其通过第一或第二开关元件与谐振电感装置串联连接,第一和第二次级侧谐振电容器是 串联连接在直流输入端子之间,串联连接在直流输出端子之间的第一和第二单向元件以及谐振电感装置,其与来自初级侧谐振电容器的谐振电容和 第一和第二次级侧谐振电容器串联谐振。
    • 5. 发明授权
    • Capacitor charging method and charging apparatus
    • US06384579B1
    • 2002-05-07
    • US09891924
    • 2001-06-26
    • Kiyomi Watanabe
    • Kiyomi Watanabe
    • H02J700
    • The charging apparatus charges a load capacitor to a predetermined voltage, and comprises an inverter which is connected to a dc power, a transformer which is connected to the ac side of the inverter, and an inductance which is connected in series to the primary and secondary windings of the transformer and comprises leakage inductance of the transformer, a rectifier which is connected to the secondary side of the transformer, and a switch element which is provided on the secondary side of the transformer. The inverter comprises a switching semiconductor element, connected to the dc power, and a feedback diode, connected in reverse parallel to the switching semiconductor element. The switching element short-circuits the output of the inductance when the charge voltage of the load capacitor has reached a predetermined value, preventing an inertial current, generated by energy which has accumulated in the inductance, from flowing to the load capacitor.
    • 6. 发明授权
    • Reversed-polarity pulse generating circuit for direct current plasma and direct current plasma power supply unit
    • 直流等离子体和直流等离子体电源单元的反转极性脉冲发生电路
    • US08471484B2
    • 2013-06-25
    • US13193862
    • 2011-07-29
    • Kiyomi WatanabeKazuo SakaiKenichi Nakamura
    • Kiyomi WatanabeKazuo SakaiKenichi Nakamura
    • H05B37/02
    • H05H1/46H01J37/32027H01J37/32045H05H2001/4682
    • A capacitor is connected between direct current voltage terminals, and inductance means is connected between one end of the capacitor and one of load terminals. In a case in which the direct current voltage exceeds a set value, voltage at both ends of the capacitor is shared by the first and second switching elements that are not electrically conductive; in a case in which the direct current voltage is below the set value, the first and second switching elements are electrically conductive on a periodic basis or as needed to output reversed-polarity voltage between load terminals; and in a case in which the first and second switching elements are turned off, voltage at both ends of the capacitor restricts voltage applied to both ends of the first and second switching elements, during a period in which the first and second feedback rectifier elements are electrically conductive.
    • 电容器连接在直流电压端子之间,电感装置连接在电容器的一端和负载端子之间。 在直流电压超过设定值的情况下,电容器两端的电压由不导电的第一和第二开关元件共用, 在直流电压低于设定值的情况下,第一和第二开关元件周期性地导电,或者根据需要在负载端子之间输出反极性电压; 并且在第一和第二开关元件截止的情况下,在第一和第二反馈整流元件是第一和第二反馈整流元件的时段期间,电容器两端的电压限制施加到第一和第二开关元件的两端的电压 导电。
    • 7. 发明申请
    • SINGLE-PHASE VOLTAGE TYPE AC/DC CONVERTER, THREE-PHASE VOLTAGE TYPE AC/DC CONVERTER, AND STABILIZATION CONTROL METHOD
    • 单相电压型AC / DC转换器,三相电压型AC / DC转换器和稳定控制方法
    • US20120051104A1
    • 2012-03-01
    • US13189752
    • 2011-07-25
    • Masaaki OhshimaShuichi UshikiYasuhiro GenjimaKiyomi Watanabe
    • Masaaki OhshimaShuichi UshikiYasuhiro GenjimaKiyomi Watanabe
    • H02M7/04
    • H02M7/219H02J3/14H02J3/16H02M2007/53876Y02B70/3225Y02E40/34Y04S20/222
    • An object is to provide a single-phase voltage type AC/DC converting device and a three-phase voltage type AC/DC converting device arranged between a load and a distribution network and is capable of contributing to stabilize a system frequency and a system voltage, and a stabilization controlling method of the system frequency and the system voltage.By applying an autonomous parallel operation control technique of an AC/DC converter to a load, which receives power from a distribution network, drooping characteristics (governor-free characteristics) for a frequency of active power and voltage-maintaining characteristics (V-Q characteristics) may be obtained. The governor-free characteristics are the characteristics to automatically decrease received power when the system frequency decreases and automatically increase the received power when this increases, so that even the load may contribute to stabilize the system frequency. Further, the V-Q characteristics generates/absorbs reactive power so as to maintain a voltage at receiving end constant regardless of load power, so that this may also contribute to stabilize the system voltage.
    • 本发明的目的是提供一种单相电压型AC / DC转换装置和布置在负载和分配网络之间的三相电压型AC / DC转换装置,并且能够有助于稳定系统频率和系统电压 ,以及系统频率和系统电压的稳定控制方法。 通过将AC / DC转换器的自主并行操作控制技术应用于从分配网络接收功率的负载,对于有功功率和维持电压特性(VQ特性)的下降特性(无调节特性)可以 得到。 无调速特性是当系统频率降低时自动降低接收功率的特性,当增加时自动增加接收功率,从而即使负载也可能有助于稳定系统频率。 此外,V-Q特性产生/吸收无功功率,以便在接收端保持恒定的电压,而与负载功率无关,因此这也有助于稳定系统电压。
    • 8. 发明授权
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US06906902B2
    • 2005-06-14
    • US10263700
    • 2002-10-04
    • Kiyomi Watanabe
    • Kiyomi Watanabe
    • H01L27/04G05F1/56H01L21/822H03K17/08H03K17/082H02H5/04
    • H03K17/0826H03K2017/0806Y10S323/907
    • A semiconductor integrated circuit comprises a transistor which has a first electrode, a second electrode and a third electrode, said transistor conducting a current of a first power source from the second electrode to the third electrode by a power supplied to the first electrode; a driver to supply said first electrode with power for driving said transistor; a reference voltage circuit to generate a reference voltage which is variable in response to temperature of said transistor, said reference voltage being used as the reference for comparison; a comparative voltage circuit to generate a comparative voltage which is variable in response to a current flowing from said second electrode to said third electrode, said comparative voltage being compared with said reference voltage; and a controller which receives said reference voltage and said comparative voltage and which supplies a control signal to said driver, said control signal being based on a result of the comparison between the comparative voltage and the reference voltage to control the power supplied to said first electrode.
    • 半导体集成电路包括具有第一电极,第二电极和第三电极的晶体管,所述晶体管通过供应到第一电极的功率将第一电源的电流从第二电极传导到第三电极; 用于向所述第一电极提供用于驱动所述晶体管的电源的驱动器; 参考电压电路,用于产生响应于所述晶体管的温度而变化的参考电压,所述参考电压用作比较参考; 比较电压电路,用于产生响应于从所述第二电极流向所述第三电极的电流而变化的比较电压,将所述比较电压与所述参考电压进行比较; 以及控制器,其接收所述参考电压和所述比较电压,并且向所述驱动器提供控制信号,所述控制信号基于比较电压和参考电压之间的比较结果,以控制提供给所述第一电极的功率 。
    • 9. 发明授权
    • Power supply device for X-ray tube
    • X射线管供电装置
    • US5187737A
    • 1993-02-16
    • US737746
    • 1991-07-30
    • Kiyomi Watanabe
    • Kiyomi Watanabe
    • H05G1/08H05G1/10H05G1/20H05G1/34
    • H05G1/08H05G1/10H05G1/20H05G1/34
    • A power supply device for an X-ray tube includes first and second capacitors connected in series at one ends thereof which are connected with a secondary winding of a high-tension transformer. Connectedly arranged between a positive output terminal and the ground are first and second diodes which are connected in series to assume the same polarity, each having a cathode as a positive output side, a connecting point of the first and second diodes being connected with the other end of the first capacitor. Also connectedly arranged between a negative output terminal and the ground are third and fourth diodes which are connected in series to assume the same polarity, each having an anode as a negative output side, a connecting point of said third and fourth diodes being connected with the other end of the second capacitor. First and second high-tension cables include a covering conductor connected with the ground, respectively. The first high-tension cable is connectedly arranged between the positive output terminal and an anode of the X-ray tube, whereas the second high-tension cable is connectedly arranged between the negative output terminal and a cathode of the X-ray tube.
    • 用于X射线管的电源装置包括与其一端串联连接的高压变压器的次级绕组的第一和第二电容器。 连接布置在正极输出端子和地之间的第一和第二二极管串联连接以呈现相同的极性,每个具有阴极作为正输出侧,第一和第二二极管的连接点与另一个二极管连接 第一个电容器的端部。 还连接布置在负输出端子和地之间的第三和第四二极管串联连接以呈现相同的极性,每个具有阳极作为负输出侧,所述第三和第四二极管的连接点与 第二电容器的另一端。 第一和第二高压电缆分别包括与地面连接的覆盖导体。 第一高压电缆连接在X射线管的正极端子和阳极之间,第二高压电缆连接在负极输出端子与X射线管的阴极之间。
    • 10. 发明申请
    • SERIES RESONANT CONVERTER
    • 系列共振转换器
    • US20110128758A1
    • 2011-06-02
    • US12954700
    • 2010-11-26
    • Shingo UenoShinichi OmakiAtsushi SaitoKiyomi Watanabe
    • Shingo UenoShinichi OmakiAtsushi SaitoKiyomi Watanabe
    • H02M3/335
    • H02M3/335Y02B70/1433
    • A series resonant converter circuit that reduces power loss is provided that includes an inverter circuit having at least a pair of first and second switching elements that is connected between DC input terminals, a transformer connected to this inverter circuit, a resonant inductance means that are connected in series to a primary winding wire or a secondary winding wire of the transformer, a primary-side resonant capacitor that is connected in series to the resonant inductance means through the first or second switching element, first and second secondary-side resonant capacitors that are connected to each other in series between the DC input terminals, first and second unidirectional elements that are connected to each other in series between the DC output terminals, and a resonant inductance means that cooperates with resonant capacitance from the primary-side resonant capacitor and the first and second secondary-side resonant capacitors to resonate in series.
    • 提供了一种降低功率损耗的串联谐振变换器电路,其包括具有至少一对第一和第二开关元件的逆变器电路,所述第一和第二开关元件连接在DC输入端子之间,连接到该逆变器电路的变压器,连接的谐振电感装置 与变压器的初级绕组线或次级绕组串联连接的初级侧谐振电容器,其通过第一或第二开关元件与谐振电感装置串联连接,第一和第二次级侧谐振电容器是 串联连接在直流输入端子之间,串联连接在直流输出端子之间的第一和第二单向元件以及谐振电感装置,其与来自初级侧谐振电容器的谐振电容和 第一和第二次级侧谐振电容器串联谐振。