公开(公告)号：US20040174240A1

公开(公告)日：2004-09-09

申请号：US10729945

申请日：2003-12-09

申请人： CANON KABUSHIKI KAISHA

发明人： Masaki Suzui

IPC分类号： H01F021/12

CPC分类号： H01F27/2847 ,  H01F17/045 ,  H01F19/04 ,  H01F21/12 ,  H01F27/2852 ,  H01F41/063

摘要： To form a center tap (CT), at least two coils must be formed. This increases the number of steps in the winding process and decreases the workability. To prevent this, a conductor having a plurality of plate portions that are connected to each other at one vertex of a rectangular shape is formed. The conductor is wound on a winding shaft, thus forming two coils.

摘要翻译： 为了形成中心抽头（CT），必须形成至少两个线圈。 这增加了卷绕过程中的步骤数量并降低了可加工性。 为了防止这种情况，形成具有在矩形的一个顶点处彼此连接的多个板部的导体。 导体缠绕在卷绕轴上，从而形成两个线圈。

公开(公告)号：US20040183642A1

公开(公告)日：2004-09-23

申请号：US10737780

申请日：2003-12-18

申请人： CANON KABUSHIKI KAISHA

发明人： Masaki Suzui

IPC分类号： H01F027/29

CPC分类号： H01F27/292 ,  H01F41/076 ,  H01F41/10 ,  H01F2005/043

摘要： An adhering process of adhering a winding, after the winding is wound on the bobbin, to a bobbin entirely or partly with an adhesive tape, for the purpose of reliably fixing the winding to the bobbin, increases the manufacturing cost of a transformer. To solve this problem, a primary winding (13) is wound on a winding core (111). Extracting portions of the primary winding (13) are caused to intersect, and their terminal ends are connected to terminals (14) which oppose each other through the winding core (111) and which are arranged within a region having end portions of a winding space of the winding core (111) as boundaries.

摘要翻译： 将绕组缠绕在绕线管上的绕组的粘合过程完全或部分地用胶带缠绕在一起，为了将绕组可靠地固定在线轴上，增加了变压器的制造成本。 为了解决这个问题，将初级绕组（13）缠绕在绕组芯（111）上。 引导初级绕组（13）的部分相交，其端部通过绕组芯（111）连接到彼此相对的端子（14），并且布置在具有绕组空间的端部的区域 的绕组芯（111）作为边界。

公开(公告)号：US20040223281A1

公开(公告)日：2004-11-11

申请号：US10834931

申请日：2004-04-30

申请人： CANON KABUSHIKI KAISHA

发明人： Masaki Suzui ,  Nobuyoshi Takehara

IPC分类号： H02H009/06

CPC分类号： H02M3/337 ,  H02M3/33592 ,  Y02B70/1475

摘要： A power converter includes a transformer, a full-bridge rectifying circuit which is located on the secondary side of the transformer and has at least a pair of self-arc-suppressing elements which are driven while being inverted, connection means which connects the negative-pole-side connection line on the primary side of the transformer to that on the secondary side of the transformer, and a control circuit which is commonly used to drive circuits on the primary and secondary sides of the transformer. The self-arc-suppressing elements are driven by the control circuit.

摘要翻译： 电力转换器包括变压器，全桥整流电路，其位于变压器的次级侧，并且具有至少一对被反相驱动的自电弧抑制元件，连接装置将负极 - 变压器的初级侧的极侧连接线与变压器的次级侧的极侧连接线，以及通常用于驱动变压器的一次侧和次侧的电路的控制电路。 自动电弧抑制元件由控制电路驱动。

公开(公告)号：US20040222874A1

公开(公告)日：2004-11-11

申请号：US10834890

申请日：2004-04-30

申请人： Canon Kabushiki Kaisha

发明人： Masaki Suzui

IPC分类号： H01F017/06

CPC分类号： H01F27/325 ,  H01F27/292 ,  H01F29/02 ,  H01F30/06 ,  H01F41/064 ,  H01F2005/043

摘要： In a push-pull switching circuit for a low-voltage, large current application, a decrease in resistance of a transformer and of its peripheral circuit is sought for. In view of this, a coil (2) is fixed at its terminal (T1) side, and is wound around a columnar winding core (1) counterclockwise in the order of a lower surface (H), side surface (I), upper surface (J), side surface (K), and the lower surface (H). A coil (3) is fixed at its terminal (T4) side, and is wound clockwise in the order of the upper surface (J), side surface (I), lower surface (H), side surface (K), and upper surface (J).

摘要翻译： 在用于低电压，大电流应用的推挽开关电路中，寻求变压器及其外围电路的电阻降低。 鉴于此，线圈（2）在其端子（T1）侧被固定，并且以下表面（H），侧面（I），上部 表面（J），侧面（K）和下表面（H）。 线圈（3）固定在其端子（T4）侧，按照上表面（J），侧面（I），下表面（H），侧面（K）和上部 表面（J）。

公开(公告)号：US20030210562A1

公开(公告)日：2003-11-13

申请号：US10431452

申请日：2003-05-08

申请人： CANON KABUSHIKI KAISHA

发明人： Nobuyoshi Takehara ,  Fumitaka Toyomura ,  Masaki Suzui

IPC分类号： H02M003/335

CPC分类号： H02J7/35 ,  H02M3/3376

摘要： Although increasing the switching frequency is effective to downsize a power supplying apparatus, the switching loss of a switching element increases if the switching frequency is increased. In a power supplying apparatus including a transformer having a very high boosting ratio, and a plurality of switching elements for supplying AC power to the primary side of the transformer, the frequency of the AC power is set to 0.25 to 2 times the self-resonance frequency of the transformer.

摘要翻译： 虽然提高开关频率对于小型化供电装置是有效的，但是如果开关频率增加则开关元件的开关损耗增加。 在包括具有非常高的升压比的变压器的供电装置和用于向变压器的初级侧提供AC电力的多个开关元件中，AC功率的频率被设定为自谐振的0.25-2倍 变压器的频率。

公开(公告)号：US20040246087A1

公开(公告)日：2004-12-09

申请号：US10834889

申请日：2004-04-30

申请人： Canon Kabushiki Kaisha

发明人： Masaki Suzui

IPC分类号： H02K009/00

CPC分类号： H01F27/292 ,  H01F27/325 ,  H01F30/06 ,  H01F41/064 ,  H01F2005/043 ,  H02M3/3372

摘要： In a push-pull switching circuit for a low-voltage, large-current application, it is desired to decrease the resistance of a transformer and of its peripheral circuit. For this purpose, a first coil (35) is wound around a first winding core (31) with respect to as a winding start position a side surface of the first winding core (31) which does not oppose a second winding core (31). A second coil (35) is wound around the second winding core (31), with respect to as a winding start position a side surface of the second winding core (31) which opposes the first winding core (31), in the same winding direction as that of the first coil (35) and in a feeding direction different from that of the first coil (35). The first and second coils are electrically connected in series with each other.

摘要翻译： 在用于低电压，大电流应用的推挽开关电路中，期望降低变压器及其外围电路的电阻。 为此，第一线圈（35）相对于第一绕线芯（31）的不与第二绕线芯（31）相对的侧表面作为绕组起始位置缠绕在第一绕线芯（31）上， 。 第二线圈（35）围绕第二绕线芯（31）缠绕在相同的绕组中，作为绕组开始位置，第二绕组芯（31）的与第一绕组芯（31）相对的侧表面 方向与第一线圈（35）的方向和馈送方向不同于第一线圈（35）的方向。 第一和第二线圈彼此串联电连接。

公开(公告)号：US20030218888A1

公开(公告)日：2003-11-27

申请号：US10443959

申请日：2003-05-23

申请人： CANON KABUSHIKI KAISHA, Tokyo, Japan

发明人： Masaki Suzui ,  Nobuyoshi Takehara

IPC分类号： H02J003/00

CPC分类号： H02M7/493 ,  H02J1/102 ,  H02J3/1835 ,  H02J3/383 ,  H02J3/386 ,  H02J2003/388 ,  H02M1/12 ,  H02M7/53873 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/30 ,  Y10T307/398

摘要： When islanding operation is to be detected in a power conversion apparatus for converting a DC power into an AC power and outputting the AC power to a system power supply, a plurality of variation generation means for executing, in accordance with different schemes, detection of islanding operation in which power supply from the system power supply is stopped are arranged, and at least one variation generation means is selected by selection means from the plurality of variation generation means and operated.

摘要翻译： 在用于将DC电力转换为AC电力并将AC电力输出到系统电源的电力转换装置中检测到孤岛作业时，根据不同的方案执行岛状检测 布置来自系统电源的电力供应停止的操作，并且通过选择装置从多个变化生成装置中选择至少一个变化生成装置并进行操作。

公开(公告)号：US20030067723A1

公开(公告)日：2003-04-10

申请号：US10252569

申请日：2002-09-24

申请人： Canon Kabushiki Kaisha

发明人： Masaki Suzui ,  Nobuyoshi Takehara ,  Seiji Kurokami

IPC分类号： H02H003/00

CPC分类号： H02H3/337 ,  H02H7/1222

摘要： In a power conversion system having a DC power supply which has an almost fixed DC voltage to ground and a predetermined stray capacitance to ground and outputs a DC power, and a power converter which converts the DC power output from the DC power supply into an AC power by switching, the phase of an AC voltage to ground generated in the DC power supply by switching is detected, the phase of an AC ground fault current that flows through the stray capacitance to ground and the ground fault resistance of the DC power supply is detected, and the difference between the two detected phases is compared with a predetermined threshold value, thereby determining a DC ground fault in the DC power supply. With this arrangement, the ground fault state of the DC power supply can more accurately be detected. In addition, the operation efficiency of the power conversion system can be increased.

摘要翻译： 在具有直流电源的直流电源具有几乎固定的对地电压和对地的预定寄生电容并输出直流电力的电力转换系统中，以及将从直流电源输出的直流电力转换成交流电的电力转换器 通过开关切换，检测直流电源中通过开关产生的交流电压与地相的相位，流过接地电容的交流接地故障电流的相位和直流电源的接地故障电阻是 并且将两个检测到的相位之间的差与预定阈值进行比较，由此确定直流电源中的直流接地故障。 通过这种布置，可以更精确地检测直流电源的接地故障状态。 此外，可以提高电力转换系统的运行效率。