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    • 1. 发明授权
    • Gate driving circuit
    • 门驱动电路
    • US08427225B2
    • 2013-04-23
    • US12681515
    • 2008-09-03
    • Hiroshi NakatakeMasaru FukuTatsuya OkudaYoshikazu Tsunoda
    • Hiroshi NakatakeMasaru FukuTatsuya OkudaYoshikazu Tsunoda
    • H03K17/687
    • H02M1/08H03K17/0406H03K17/0412H03K17/162H03K2217/0036
    • To obtain a gate driving circuit in which rising of a constant current of a constant current circuit is fast and power saving is achieved, the gate driving circuit includes: a constant current driving circuit (28) for supplying a constant current; a gate terminal of a power semiconductor element (1), which is connected to an output terminal of the constant current driving circuit; a comparator (22) for comparing a voltage at the gate terminal with a predetermined voltage value and outputting a signal indicating that the voltage is higher than the predetermined voltage value; and a driving control section (20) for increasing a current from the constant current driving circuit in response to a signal for turning on the power semiconductor element, and reducing the current from the constant current driving circuit in response to the signal from the comparator.
    • 为了获得恒定电流电路的恒定电流的上升快速并且实现功率节省的栅极驱动电路,栅极驱动电路包括:用于提供恒定电流的恒定电流驱动电路(28); 功率半导体元件(1)的栅极端子,连接到恒流驱动电路的输出端子; 比较器(22),用于将栅极端子处的电压与预定电压值进行比较,并输出表示电压高于预定电压值的信号; 以及用于响应于用于接通功率半导体元件的信号而增加来自恒定电流驱动电路的电流并且响应于来自比较器的信号而减小来自恒定电流驱动电路的电流的驱动控制部分(20)。
    • 2. 发明授权
    • Gate drive apparatus
    • 闸门驱动装置
    • US08138818B2
    • 2012-03-20
    • US12144871
    • 2008-06-24
    • Yoshikazu TsunodaTatsuya OkudaMasaru Fuku
    • Yoshikazu TsunodaTatsuya OkudaMasaru Fuku
    • H03K17/04
    • H03K17/168H03K17/0406H03K17/063H03K17/08128
    • A gate drive apparatus including a constant-current-pulse gate drive circuit which creates a gate signal for a switching device as a constant-current output, a constant-voltage-pulse gate drive circuit which creates the gate signal as a constant-voltage output, and a decision/switch circuit which switches the operation of the constant-current-pulse gate drive circuit and the operation of the constant-voltage-pulse gate drive circuit. The variance of switching speeds attributed to the variances of threshold voltages and mirror voltages in a plurality of switching devices which are driven by the gate drive apparatus can be suppressed, and the variance of losses can be minimized.
    • 一种栅极驱动装置,包括:恒定电流脉冲栅极驱动电路,其将作为恒流输出的开关装置的栅极信号产生;恒压脉冲栅极驱动电路,其将栅极信号作为恒定电压输出 以及切换恒流脉冲栅极驱动电路的动作和恒压脉冲栅极驱动电路的动作的决定/切换电路。 可以抑制归因于由栅极驱动装置驱动的多个开关装置中的阈值电压和镜像电压的方差的开关速度的变化,并且可以使损失的方差最小化。
    • 3. 发明申请
    • GATE DRIVE APPARATUS
    • 门驱动装置
    • US20090002054A1
    • 2009-01-01
    • US12144871
    • 2008-06-24
    • Yoshikazu TSUNODATatsuya OkudaMasaru Fuku
    • Yoshikazu TSUNODATatsuya OkudaMasaru Fuku
    • H03K17/04
    • H03K17/168H03K17/0406H03K17/063H03K17/08128
    • A gate drive apparatus including a constant-current-pulse gate drive circuit which creates a gate signal for a switching device as a constant-current output, a constant-voltage-pulse gate drive circuit which creates the gate signal as a constant-voltage output, and a decision/switch circuit which switches the operation of the constant-current-pulse gate drive circuit and the operation of the constant-voltage-pulse gate drive circuit. The variance of switching speeds attributed to the variances of threshold voltages and mirror voltages in a plurality of switching devices which are driven by the gate drive apparatus can be suppressed, and the variance of losses can be minimized.
    • 一种栅极驱动装置,包括:恒定电流脉冲栅极驱动电路,其将作为恒流输出的开关装置的栅极信号产生;恒压脉冲栅极驱动电路,其将栅极信号作为恒定电压输出 以及切换恒流脉冲栅极驱动电路的动作和恒压脉冲栅极驱动电路的动作的决定/切换电路。 可以抑制归因于由栅极驱动装置驱动的多个开关装置中的阈值电压和镜像电压的方差的开关速度的变化,并且可以使损失的方差最小化。
    • 4. 发明授权
    • Power unit for automobile
    • 汽车动力单元
    • US07407025B2
    • 2008-08-05
    • US10538653
    • 2003-09-18
    • Takahiro UrakabeTatsuya OkudaYoshikazu Tsunoda
    • Takahiro UrakabeTatsuya OkudaYoshikazu Tsunoda
    • B60L8/00
    • F02N11/04F02N11/0866F02N11/10F02N2011/0888H02J7/345
    • This invention provides a power unit for an automobile including a motor 6 for starting an engine by transmitting a power thereto and generating a power by receiving a power from the engine during rotation thereof, a power converting circuit 5 for transmitting a power to the motor 6, a battery 1, an energy storing source 20 for storing energy, and a DC/DC converter including at least two switching elements 10, 11, charging the energy storing source 20, and recovering energy in the energy storing source 20 to the battery 1. Since the switch provided in the DC/DC converter is normally turned on when the motor 6 generates power by receiving a power from the engine and charges the battery 1 through the power converting circuit 5 and the DC/DC converter, generation of heat from the DC/DC converter circuit part can be suppressed greatly.
    • 本发明提供了一种用于汽车的动力单元,其包括:马达6,用于通过向其发送动力来起动发动机,并通过在其旋转期间从发动机接收动力产生动力;功率转换电路5,用于向马达6发送动力 电池1,用于存储能量的能量存储源20以及包括至少两个开关元件10,11的DC / DC转换器,对能量存储源20充电,并且将能量存储源20中的能量回收到电池1 。 由于当电动机6通过从发动机接收电力并且通过电力转换电路5和DC / DC转换器对电池1充电来产生电力时,DC / DC转换器中提供的开关通常被接通,所以从 DC / DC转换器电路部分可以大大抑制。
    • 5. 发明授权
    • Method of driving plasma display panel, plasma display device and driving device for plasma display panel
    • 驱动等离子体显示面板的方法,等离子体显示装置和等离子体显示面板的驱动装置
    • US06836262B2
    • 2004-12-28
    • US09782292
    • 2001-02-14
    • Takashi HashimotoTakahiro UrakabeAkihiko IwataYoshikazu TsunodaTakayoshi Nagai
    • Takashi HashimotoTakahiro UrakabeAkihiko IwataYoshikazu TsunodaTakayoshi Nagai
    • G09G328
    • G09G3/2927G09G3/296G09G2310/066G09G2320/0228
    • In a reset period, through applying a rectangular pulse (Pya) of positive polarity to an electrode (Y) and applying a CR pulse (Pxa) of negative polarity to an electrode X, a full lighting pulse is applied between the electrodes (X and Y). The application of the voltage is stopped before a CR pulse (Pxc) reaches a final potential, to generate the pulse (Pxa). A full erase pulse (Pxb) made of a CR pulse having a polarity reverse to that of the pulse (Pxa) is applied to the electrode (X). An erase operation reverses the polarity of wall charges accumulated by a full lighting to effectively perform a potential control operation. The potential control pulse (Pxc) is applied to the electrode (X) to generate a discharge, and the state of the wall charges in a discharge cell is controlled by the discharge to generate an optimal amount of wall charges for a subsequent addressing discharge. The final voltage of the pulse (Pxc) is set equal to a voltage (−Vxg) of an address pulse (Pa). Thus, it is possible to generate a plurality of pulses and stabilize an operation of a PDP with a simple constitution.
    • 在复位期间,通过向电极(Y)施加正极性的矩形脉冲(Pya),向电极X施加负极性的CR脉冲(Pxa),在电极(X, Y)。 在CR脉冲(Pxc)达到最终电位之前停止施加电压,以产生脉冲(Pxa)。 将由具有与脉冲(Pxa)相反极性的CR脉冲构成的完全擦除脉冲(Pxb)施加到电极(X)。 擦除操作反转由完全照明积累的壁电荷的极性,以有效地执行电位控制操作。 将电位控制脉冲(Pxc)施加到电极(X)以产生放电,并且通过放电来控制放电单元中的壁电荷的状态,以产生用于随后的寻址放电的最佳量的壁电荷。 将脉冲的最终电压(Pxc)设定为等于寻址脉冲(Pa)的电压(-Vxg)。 因此,可以以简单的结构产生多个脉冲并稳定PDP的操作。
    • 8. 发明授权
    • Semiconductor device
    • 半导体器件
    • US08754462B2
    • 2014-06-17
    • US13733723
    • 2013-01-03
    • Noboru MiyamotoYoshikazu Tsunoda
    • Noboru MiyamotoYoshikazu Tsunoda
    • H01L29/92
    • H01L29/92H01G4/232H01G4/30H01G4/33H01G4/40H01L23/49562H01L23/49589H01L23/642H01L24/32H01L25/16H01L28/82H01L28/86H01L28/90H01L2924/13055H01L2924/00
    • A semiconductor device includes a first electrode electrically connected to an upper surface of a semiconductor element, a first internal electrode electrically connected to a lower surface of the semiconductor element and having a plurality of first comb finger portions and a first connection portion connecting the plurality of first comb finger portions together, a second electrode electrically connected to the first internal electrode, a second internal electrode electrically connected to a lower surface of the first electrode and having a plurality of second comb finger portions and a second connection portion connecting the plurality of second comb finger portions together, the plurality of second comb finger portions being interdigitated with but not in contact with the plurality of first comb finger portions, and a lower dielectric filling the space between the plurality of first comb finger portions and the plurality of second comb finger portions.
    • 半导体器件包括电连接到半导体元件的上表面的第一电极,与半导体元件的下表面电连接并具有多个第一梳状指部的第一内部电极和连接多个 电连接到第一内部电极的第二电极,与第一电极的下表面电连接并具有多个第二梳形指状部分的第二内部电极和连接多个第二梳状部分的第二连接部分, 梳状指部分在一起,多个第二梳状指部分与多个第一梳状指部分相互交错但不接触;以及下部电介质,其填充多个第一梳状指部分与多个第二梳状指状部分之间的空间 部分。
    • 10. 发明授权
    • Method of driving plasma display panel, plasma display device and driving device for plasma display panel
    • 驱动等离子体显示面板的方法,等离子体显示装置和等离子体显示面板的驱动装置
    • US06483250B1
    • 2002-11-19
    • US09715124
    • 2000-11-20
    • Takashi HashimotoTakahiro UrakabeAkihiko IwataYoshikazu TsunodaTakayoshi Nagai
    • Takashi HashimotoTakahiro UrakabeAkihiko IwataYoshikazu TsunodaTakayoshi Nagai
    • G09G310
    • G09G3/2927G09G3/296G09G2310/066
    • A synthetic round pulse generation circuit can output constant currents (i1, i2). By charging a capacitance element (CP) with the constant currents (i1, i2), a ramp pulse (10a) having a rate of voltage change of i1/CP and a ramp pulse (10b) having a rate of voltage change of i2/CP are applied to the capacitance element (CP). A synthetic round pulse (11) consists of the ramp pulse (10a) and the ramp pulse (10b). In the synthetic round pulse (11), the lengths of application time periods (T10a, T10b) are set so that a discharge is started with the ramp pulse (10a). Further, the rate of voltage change (i1/CP) of the ramp pulse (10a) is set to a small value so that the intensity of the discharge at a discharge starting time (t11f) in the application time period (T10a) may be sufficiently weak. When a PDP is driven with the synthetic round pulse, it is thereby possible to reduce an application time of the round waveform.
    • 综合回合脉冲发生电路可以输出恒定电流(i1,i2)。 通过用恒定电流(i1,i2)对电容元件(CP)充电,具有i1 / CP的电压变化率的斜坡脉冲(10a)和具有i2 / CP的电压变化率的斜坡脉冲(10b) CP被施加到电容元件(CP)。 合成回合脉冲(11)由斜坡脉冲(10a)和斜坡脉冲(10b)组成。 在合成回合脉冲(11)中,施加时间段(T10a,T10b)的长度被设定为以斜坡脉冲(10a)开始放电。 此外,斜坡脉冲(10a)的电压变化率(i1 / CP)被设定为较小的值,使得在施加时间段(T10a)中的放电开始时间(t11f)的放电强度可以是 足够弱 当利用合成圆形脉冲驱动PDP时,由此可以减少圆形波形的施加时间。