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    MAGNETIC STRUCTURES FOR LOW LEAKAGE INDUCTANCE AND VERY HIGH EFFICIENCY
    21.
    发明申请
    MAGNETIC STRUCTURES FOR LOW LEAKAGE INDUCTANCE AND VERY HIGH EFFICIENCY 审中-公开
    低泄漏电感的磁结构和非常高的效率

    公开(公告)号：US20160307695A1

    公开(公告)日：2016-10-20

    申请号：US14660901

    申请日：2015-03-17

    Applicant: Ionel Jitaru

    Inventor： Ionel Jitaru

    IPC: H01F27/40 ,  H01F27/29 ,  H01F27/28

    CPC classification number: H01F27/40 ,  G11C11/06 ,  H01F19/04 ,  H01F27/2804 ,  H01F27/29 ,  H01F2027/408

    Abstract: A magentic configuration using a plurality of posts and spiting the primary winding on each of the posts and placing the secondary windings together with the rectifiers menas around each posts to minimise the stray and leakage inductance. In this magentic configurations there is a significant reduction of the core material and a reduction of the footprint by a better utilization of the copper. The magentic field is weaving from through a post to the other minimizing the vertical components and forcing the magentic field to be paralel with the winding reducing the ac copper losses. These properties allows this magentic strcuture to be suitable in very high frequency applications and even in application with air core. These magentic structures can be used for transformer inplementation and also for the inductive applications.

    Abstract translation: 使用多个柱并且在每个柱上施加初级绕组并将次级绕组与整流器放置在每个柱附近的磁性构造以最小化杂散和漏电感。 在这种磁性配置中，通过更好地利用铜，可显着降低芯材料并减少占地面积。 磁场通过柱子编织成另一个，从而最小化垂直分量，并强制磁场与绕组减小交流铜损耗。 这些特性允许这种磁性结构适用于非常高频率的应用，甚至适用于空气芯。 这些磁性结构可用于变压器实现和电感应用。

    Input Current Distortion for Minimization of Bulk Capacitor
    23.
    发明申请
    Input Current Distortion for Minimization of Bulk Capacitor 审中-公开
    大容量电容器最小化的输入电流失真

    公开(公告)号：US20150288275A1

    公开(公告)日：2015-10-08

    申请号：US14680778

    申请日：2015-04-07

    Applicant: Ionel Jitaru ,  Marco Antonio Davila

    Inventor： Ionel Jitaru ,  Marco Antonio Davila

    IPC: H02M1/42 ,  H02M7/06

    CPC classification number: H02M1/4208 ,  Y02B70/126

    Abstract: Controlled input current distortion that reduces voltage ripple on a power factor corrected output is shown. Several methods are presented to reduce this voltage ripple so that the typical capacitor used in off line converters can be reduced in size or stress without affecting power factor significantly.

    Abstract translation: 显示了降低功率因数校正输出时的电压纹波的受控输入电流失真。 提出了几种方法来降低这种电压纹波，使得在离线转换器中使用的典型电容器可以在尺寸或应力方面减小而不会明显影响功率因数。

    PORTABLE POWER SUPPLY APPARATUS CAPABLE OF RECEIVING AC OR DC INPUT POWER
    24.
    发明申请
    PORTABLE POWER SUPPLY APPARATUS CAPABLE OF RECEIVING AC OR DC INPUT POWER 审中-公开
    便携式电源可接收交流或直流输入电源

    公开(公告)号：US20080211310A1

    公开(公告)日：2008-09-04

    申请号：US11970872

    申请日：2008-01-08

    Applicant: Ionel Jitaru ,  Phichej Cheevanantachai ,  Didier Chaumet ,  Heng Hsien Hsieh ,  Tang Peng Seng

    Inventor： Ionel Jitaru ,  Phichej Cheevanantachai ,  Didier Chaumet ,  Heng Hsien Hsieh ,  Tang Peng Seng

    IPC: H02J1/00

    CPC classification number: H02M1/10 ,  H01R13/6675 ,  H01R31/065 ,  Y10T307/658 ,  Y10T307/696

    Abstract: A portable power supply apparatus is provided. The portable power supply apparatus includes an AC-to-DC power adapter, a DC power connector, a DC-to-DC power adapter and an extension power cable. The AC-to-DC power adapter is employed for receiving AC power. The DC power connector is employed for receiving DC power. The DC-to-DC power adapter includes a first DC power input portion, a DC-to-DC power converting circuit and a first DC power output portion. The first DC power input portion is selectively connected to the AC-to-DC power adapter or the DC power connector for receiving a first input DC voltage from the AC-to-DC power adapter or a second input DC voltage from the DC power connector. The DC-to-DC power converting circuit is electrically connected to the first DC power input portion for converting the first input DC voltage or the second input DC voltage into a first DC output voltage. The first DC power output portion is electrically connected to the DC-to-DC power converting circuit for receiving and outputting the first DC output voltage. The extension power cable is connected between the AC-to-DC power adapter and the DC-to-DC power adapter and/or connected to the AC-to-DC power adapter.

    Abstract translation: 提供便携式电源装置。 便携式电源装置包括AC-DC电源适配器，DC电源连接器，DC-DC电源适配器和扩展电源线。 AC-DC电源适配器用于接收交流电源。 直流电源连接器用于接收直流电源。 DC-DC电源适配器包括第一DC电力输入部分，DC-DC电力转换电路和第一DC电力输出部分。 第一直流电力输入部分选择性地连接到AC-DC电源适配器或DC电源连接器，用于从AC-DC电源适配器接收第一输入DC电压或从DC电源连接器接收第二输入DC电压 。 DC-DC电力转换电路电连接到第一DC电力输入部分，用于将第一输入DC电压或第二输入DC电压转换为第一DC输出电压。 第一DC电力输出部分电连接到DC-DC电力转换电路，用于接收和输出第一DC输出电压。 扩展电源线连接在AC到DC电源适配器和DC-DC电源适配器之间和/或连接到AC到DC电源适配器。

    Dc dc switching converter device
    25.
    发明申请
    Dc dc switching converter device 有权
    Dc直流开关转换器

    公开(公告)号：US20060197384A1

    公开(公告)日：2006-09-07

    申请号：US10548393

    申请日：2004-03-10

    Applicant: Ionel Jitaru ,  Bogdan Bucheru ,  Lucian Hriscu ,  Marco Davila

    Inventor： Ionel Jitaru ,  Bogdan Bucheru ,  Lucian Hriscu ,  Marco Davila

    IPC: H02J1/02

    CPC classification number: H02M1/12 ,  H02J1/102 ,  Y10T307/406

    Abstract: A DC-DC switching converter device (101), in particular a quarter-brick or eighth-brick device having an industry standard pin out, comprises a pulse-width modulation circuit (132) for driving a power converting switch, a trim connector (109) for adjusting an output voltage of the device, where the device (101) is designed such that the pulse-width modulation circuit (132) is synchronizable to an external oscillator by an external synchronization signal applied to the trim connector. A DC-DC converting circuit comprises a plurality of DC-DC switching converters (101) featuring trim connectors (109) for adjusting output voltages of the converters (101), whereby the converters (101) are connected such that they share a common input bus. It further features a system EMI (electromagnetic interference) filter common to all the DC-DC switching converters (101) and an external oscillator delivering an external synchronization signal to the plurality of DC-DC switching converters (101). The external oscillator is designed such that a frequency of the external synchronization signal is higher than a free running frequency of each of the plurality of DC-DC switching converters (101). The external oscillator is connected to the trim connectors (109) of the DC-DC switching converters (101).

    Abstract translation: 具有工业标准引脚输出的DC-DC开关转换器（101）特别是四分之一砖或八瓦器件包括用于驱动电源转换开关的脉宽调制电路（132），修整连接器 109），用于调整所述装置的输出电压，其中所述装置（101）被设计成使得所述脉宽调制电路（132）可通过施加到所述装饰连接器的外部同步信号与外部振荡器同步。 DC-DC转换电路包括多个DC-DC开关转换器（101），其具有用于调节转换器（101）的输出电压的调整连接器（109），由此转换器（101）连接成使得它们共享公共输入 总线。 它还具有所有DC-DC开关转换器（101）共同的系统EMI（电磁干扰）滤波器和向多个DC-DC开关转换器（101）提供外部同步信号的外部振荡器。 外部振荡器被设计成使得外部同步信号的频率高于多个DC-DC开关转换器（101）中的每一个的自由运行频率。 外部振荡器连接到DC-DC开关转换器（101）的调整连接器（109）。

    Method and apparatus for forming a magnetic component on a printed circuit board
    26.
    发明授权
    Method and apparatus for forming a magnetic component on a printed circuit board 有权
    在印刷电路板上形成磁性部件的方法和装置

    公开(公告)号：US06489876B1

    公开(公告)日：2002-12-03

    申请号：US09668620

    申请日：2000-09-22

    Applicant: Ionel Jitaru

    Inventor： Ionel Jitaru

    IPC: H01F500

    CPC classification number: H01F27/2804 ,  H01F27/2866 ,  H05K1/165 ,  Y10T29/4902 ,  Y10T29/49071

    Abstract: A method and apparatus for forming a magnetic component on a printed circuit board. The printed circuit board has at least one inner layer including a trace that forms a winding of the magnetic component. Another winding of the magnetic component is formed by a length of wire that is disposed externally to the printed circuit board.

    Abstract translation: 一种用于在印刷电路板上形成磁性部件的方法和装置。 印刷电路板具有至少一个包含形成磁性部件的绕组的迹线的内层。 磁性部件的另一个绕组由设置在印刷电路板外部的一段电线形成。

    High power planar transformer
    27.
    发明授权
    High power planar transformer 有权
    大功率平面变压器

    公开(公告)号：US06211767B1

    公开(公告)日：2001-04-03

    申请号：US09316924

    申请日：1999-05-21

    Applicant: Ionel Jitaru

    Inventor： Ionel Jitaru

    IPC: H01F500

    CPC classification number: H01F27/2804 ,  H01F27/2847

    Abstract: A Low-to-High-Power, high reliability, high efficiency, small size transformer for power supply/DC—DC converter applications, using an inner layer winding constructed in a multilayers PCB and perfectly insulated with respect to the secondary, each layer having one ore more loops, interconnected to other layer by vias and contacted with simple pads, or any other contact type, including special connectors inserted in the PCB. The secondary is a special cooper strip designed as one or more one-turn strip, with pins designed for mechanical attachment and electrical contact. All the secondary strips on one side of the PCB, are perfectly symmetrical to the ones on the other side, so that they are interchangeable, and can be mounted on either side of the PCB. The secondary may be contacted directly to the strips, or with any other type of power connector inserted in the PCB. The magnetics are either E+I type, or I type, and the PCB has dedicated rectangular slots to accommodate the magnetics, and also special metalized holes to receive the secondary pins.

    Abstract translation: 一种用于电源/ DC-DC转换器应用的低功率，高可靠性，高效率，小尺寸的变压器，其使用在多层PCB中构造的内层绕组并且相对于次级完全绝缘，每层具有 一个更多的环，通过通孔互连到其他层，并与简单的焊盘或任何其他接触类型（包括插入PCB中的特殊连接器）接触。 次级是一个特殊的铜条，设计为一个或多个单转条，引脚设计用于机械附接和电接触。 PCB一侧的所有次级条都与另一侧完全对称，因此它们是可互换的，可以安装在PCB的两侧。 次级可以直接接触条带，或者与插入PCB中的任何其他类型的电源连接器接触。 磁体是E + I型或I型，PCB具有专用的矩形槽以容纳磁性材料，还有特殊的金属化孔来接收辅助引脚。

    Method and apparatus for obtaining soft switching in all the switching elements through current shaping and intelligent control
    29.
    发明授权
    Method and apparatus for obtaining soft switching in all the switching elements through current shaping and intelligent control 有权

    公开(公告)号：US09985546B2

    公开(公告)日：2018-05-29

    申请号：US15068598

    申请日：2016-03-13

    Applicant: Ionel Jitaru

    Inventor： Ionel Jitaru

    IPC: H02M3/335 ,  H02J3/00

    CPC classification number: H02M3/33592 ,  H02J3/00 ,  H02M3/3353 ,  H02M3/33576

    Abstract: A method is shown to create soft transition in selected topologies by preserving the leakage inductance energy during the dead time and using several techniques to supplement the energy require to discharge the parasitic capacitance of the primary switchers and obtain zero voltage switching. One technique consists in a current pulse injection across the synchronous rectifiers during the dead time and prior the turn off of the synchronous rectifiers. A second technique consist in tailoring the magnetizing current through frequency modulation to increase the energy in the leakage inductance and use that energy to discharge the parasitic capacitance of the primary switchers and at lighter load to have a magnetizing current which exceeds the current through the output inductor at the end of the dead time. The third technique is interleaving two converters and sharing a couple inductance in a way to lower the current through each output inductor under the level of the magnetizing current at its lowest amplitude. The fourth technique is controlling the turn off timing of the primary switchers and turn on timing for the secondary synchronous rectifier and in this way to control the energy in the leakage inductance during the dead time in order to build enough energy in the leakage inductance to discharge the parasitic capacitances of the primary switchers to zero. In a given application we may use one or several of these technique function of the operating conditions.

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