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    • 33. 发明授权
    • Insulation transformer and key input circuit having the same
    • 绝缘变压器和键输入电路具有相同的功能
    • US08228156B2
    • 2012-07-24
    • US12446019
    • 2007-10-17
    • Jun-Young LimSang-Young Kim
    • Jun-Young LimSang-Young Kim
    • H01F5/00G05F1/325
    • H01F3/14H01F19/04H01F27/292H01F41/069H01F2019/085
    • An insulation transformer and a key input circuit having the same are disclosed. The insulation transformer includes: a core having a certain gap; and primary and secondary coils wound on the core. According to the insulation transformer, the operation deficiency of the insulation transformer can be reduced and thus the signal transmission efficiency can be improved. Also, the key input circuit including: an insulation transformer includes a core having a certain gap, and primary and secondary coils wound on the core; a microcomputer connected with the primary coil; and a key input unit connected with the secondary coil and including multiple resistors and switches. According to the key input circuit having the insulation transformer, the reliability of the operation of the key input circuit can be improved and user inconvenience that may be caused by an operation error can be prevented.
    • 公开了一种绝缘变压器和具有该绝缘变压器的键输入电路。 绝缘变压器包括:具有一定间隙的芯; 并且初级和次级线圈缠绕在芯上。 根据绝缘变压器,可以降低绝缘变压器的工作不足,提高信号传输效率。 此外,键输入电路包括:绝缘变压器包括具有一定间隙的芯,以及缠绕在芯上的初级和次级线圈; 与初级线圈连接的微型计算机; 以及与次级线圈连接并包括多个电阻和开关的键输入单元。 根据具有绝缘变压器的键输入电路,可以提高键输入电路的操作的可靠性,并且可以防止可能由操作错误引起的用户不方便。
    • 36. 发明授权
    • Overlapping compact multiple transformers
    • 重叠紧凑型多变压器
    • US08044759B2
    • 2011-10-25
    • US12902940
    • 2010-10-12
    • Ki Seok YangJeonghu HanJaejoon ChangWoonyun KimChang-Ho Lee
    • Ki Seok YangJeonghu HanJaejoon ChangWoonyun KimChang-Ho Lee
    • H01F5/00
    • H01F27/2804H01F19/04H01L2224/48091H01L2224/49175H01L2924/00014
    • Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction.
    • 提供了用于重叠紧凑型多变压器的系统和方法。 系统和方法可以包括第一变压器部分,其包括第一初级绕组部分和第一次级绕组,其中第一初级绕组部分感应耦合到第一次级绕组,其中第一变压器部分与第一转子电流相关联 第一初级绕组段中的流动方向; 以及第二变压器部分,其包括第二初级绕组部分和第二次级绕组,其中所述第二初级绕组部分感应耦合到所述第二次级绕组,其中所述第二变压器部分与所述第二转子部分中的第二转动电流流动方向相关联, 初级绕组部分,其中第一初级绕组部分的第一部分与第二初级绕组部分的第二部分相邻,其中相邻的第一和第二部分包括基本相同的第一线性电流流动方向。
    • 37. 发明申请
    • POWER TRANSFORMER FOR RADIOFREQUENCY SIGNALS
    • 电力变压器用于无线电信号
    • US20110109417A1
    • 2011-05-12
    • US12988957
    • 2009-04-14
    • Pierre BertramCharles Richardeau
    • Pierre BertramCharles Richardeau
    • H01F5/00H01F19/00
    • H01F27/2804H01F17/0013H01F19/04H01F2027/2819
    • The present invention relates to a power transformer for radiofrequency signals. The transformer is made in a low-cost, multilayer printed circuit board comprising at least the following stacked layers in succession: a first conductive layer, a first layer of dielectric substrate, a second conductive layer, a second layer of dielectric substrate, and a third conductive layer, the primary winding being formed by a turn printed in the second conductive layer, the secondary winding being formed by a first turn printed in the first conductive layer, this first turn being connected to a second turn printed in the third conductive layer, the turns of the secondary winding being placed opposite to the turn of the primary winding, the board being tightly held above and below by two plates of ferromagnetic material. Capacitive components connected between winding(s) on the one hand and ground on the other hand can improve the behavior of the proposed transformer. The invention applies notably to the production of HF transmitting radioelectric terminals.
    • 本发明涉及一种用于射频信号的电力变压器。 所述变压器由低成本的多层印刷电路板制成,所述多层印刷电路板至少包括以下堆叠层:第一导电层,第一介电基片层,第二导电层,第二介质基片层,以及第 所述初级绕组由印刷在所述第二导电层中的转弯形成,所述次级绕组由印刷在所述第一导电层中的第一匝形成,所述第一匝连接到印刷在所述第三导电层中的第二匝 ,次级绕组的匝与初级绕组的匝相对放置,板被两块铁磁材料紧紧地保持在上下。 另一方面,一方面连接绕组和地之间的电容元件可以改善所提出的变压器的性能。 本发明特别适用于HF发射放射性电子终端的生产。
    • 39. 发明申请
    • CORELESS PRINTED-CIRCUIT-BOARD (PCB) TRANSFORMERS AND OPERATING TECHNIQUES THEREFOR
    • 无线印刷电路板(PCB)变压器及其操作技术
    • US20110050292A1
    • 2011-03-03
    • US12847638
    • 2010-07-30
    • Shu Yuen Ron HUISai Chun TANG
    • Shu Yuen Ron HUISai Chun TANG
    • H03K3/00H01F5/00
    • H01F19/04H01F17/0006H05K1/165H05K2201/10166
    • Optimal operating techniques are disclosed for using coreless printed-circuit-board (PCB) transformers under (1) minimum input power conditions and (2) maximum energy efficiency conditions. The coreless PCB transformers should be operated at or near the ‘maximum impedance frequency’ (MIF) in order to reduce input power requirement. For maximum energy efficiency, the transformers should be at or near the “maximum efficiency frequency” (MEF) which is below the MIF. The operating principle has been confirmed by measurement and simulation. The proposed operating techniques can be applied to coreless PCB transformers in many circuits that have to meet stringent height requirements, for example to isolate the gates of power MOSFET and IGBT devices from the input power supply.
    • 公开了在(1)最小输入功率条件下和(2)最大能量条件下使用无芯无线印刷电路板(PCB)变压器的最佳操作技术。 无芯PCB变压器应运行在或接近“最大阻抗频率”(MIF),以减少输入功率需求。 为了最大的能量效率,变压器应处于或接近低于MIF的“最大效率频率”(MEF)。 工作原理已通过测量和模拟证实。 所提出的操作技术可以应用于许多电路中的无芯PCB变压器,这些电路必须满足严格的高度要求,例如将功率MOSFET和IGBT器件的栅极与输入电源隔离开来。
    • 40. 发明申请
    • OVERLAPPING COMPACT MULTIPLE TRANSFORMERS
    • 重叠多功能变压器
    • US20110043316A1
    • 2011-02-24
    • US12902940
    • 2010-10-12
    • Ki Seok YangJeonghu HanJaejoon ChangWoonyun KimChang-Ho Lee
    • Ki Seok YangJeonghu HanJaejoon ChangWoonyun KimChang-Ho Lee
    • H01F27/29H01F27/28
    • H01F27/2804H01F19/04H01L2224/48091H01L2224/49175H01L2924/00014
    • Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction.
    • 提供了用于重叠紧凑型多变压器的系统和方法。 系统和方法可以包括第一变压器部分,其包括第一初级绕组部分和第一次级绕组,其中第一初级绕组部分感应耦合到第一次级绕组,其中第一变压器部分与第一转子电流相关联 第一初级绕组段中的流动方向; 以及第二变压器部分,其包括第二初级绕组部分和第二次级绕组,其中所述第二初级绕组部分感应耦合到所述第二次级绕组,其中所述第二变压器部分与所述第二转子部分中的第二转动电流流动方向相关联, 初级绕组部分,其中第一初级绕组部分的第一部分与第二初级绕组部分的第二部分相邻,其中相邻的第一和第二部分包括基本相同的第一线性电流流动方向。