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    • 82. 发明申请
    • A TRANSFORMER ASSEMBLY
    • 变压器总成
    • WO2009034179A2
    • 2009-03-19
    • PCT/EP2008/062205
    • 2008-09-12
    • Texas Instruments (Cork) LimitedYOUNG, GeorgeGAYNOR, BrianKEOGH, Andrew Bernard
    • YOUNG, GeorgeGAYNOR, BrianKEOGH, Andrew Bernard
    • H01F27/28H01F3/00H01F27/34
    • H01F27/2871H01F3/00H01F27/2804H01F27/2823H01F27/346H01F2027/2819
    • The present invention relates to a transformer assembly (1) and a process for manufacturing same. The transformer (1) comprises a primary winding (5) wound on a PCB (9) and a secondary winding (7) mounted adjacent to the primary winding. The primary winding comprises a spiral coil, for example of wire or insulated wire, wound on the PCB. Gate drive windings (31, 33) are incorporated in the PCB (9) and there is therefore very close coupling between the primary winding and the gate drive windings. Furthermore, the secondary winding (7) is a centre-tapped secondary having two halves. A flux balance winding (13) is provided to connect the two halves of the centre-tapped secondary winding (7) and minimise leakage inductance thereby reducing power loss and spiking effects and obviating the need for complex control arrangements.
    • 变压器组件(1)及其制造方法技术领域本发明涉及一种变压器组件(1)及其制造方法。 变压器(1)包括缠绕在PCB(9)上的初级绕组(5)和安装在初级绕组附近的次级绕组(7)。 初级绕组包括缠绕在PCB上的螺旋线圈,例如线或绝缘线。 栅极驱动绕组(31,33)结合在PCB(9)中,因此在初级绕组和栅极驱动绕组之间存在非常紧密的耦合。 此外,次级绕组(7)是具有两个半部的中心抽头辅助绕组。 提供磁通平衡绕组(13)以连接中心抽头次级绕组(7)的两半,并使漏感最小化,从而减少功率损耗和尖峰效应,并且不需要复杂的控制布置。
    • 87. 发明申请
    • IMPROVED CORE-FORM TRANSFORMER
    • 改进的核心变压器
    • WO1993019476A1
    • 1993-09-30
    • PCT/US1993002775
    • 1993-03-24
    • ELECTRIC POWER RESEARCH INSTITUTE, INC.
    • ELECTRIC POWER RESEARCH INSTITUTE, INC.GIRGIS, Ramsis, S.KENNEDY, William, N.KO, Chung-DuckPANDZA, Carl, M.
    • H01F27/28
    • H01F27/2871
    • An improved core-form transformer (20) is disclosed. The core-form transformer (20) includes a c-wrapped ribbon conductor (32) with opposing wide sides and opposing thin sides. The c-wrapped ribbon conductor (32) is wound around a core (24) to form a plurality of coil sections (22). Adhesive is applied directly to one of the wide sides of the ribbon conductor (32) to form a strong mechanical coupling within the coil sections (22). A novel transposing fold (50, 52, 30, 44) of the ribbon conductor (32) is employed to create coil transpositions. The core-form transformer (20) of the invention reduces circulating current losses while utilizing only a small number of transposing folds, generally adjacent to a first coil section, a last coil section, and an intermediate coil section.
    • 公开了一种改进的芯型变压器(20)。 芯形变压器(20)包括具有相对的宽边和相对的薄侧的c形带状导体(32)。 c形带状导体(32)围绕芯部(24)缠绕以形成多个线圈部分(22)。 粘合剂直接施加到带状导体(32)的一个宽侧,以在线圈段(22)内形成强力的机械耦合。 使用带状导体(32)的新颖的置换折叠(50,52,30,44)来产生线圈位移。 本发明的芯型变压器(20)减少了循环电流损耗,同时仅使用少量的转置折叠,通常与第一线圈部分,最后的线圈部分和中间线圈部分相邻。