Highly efficient, tightly regulated DC-to-DC converter
    12.
    发明授权
    Highly efficient, tightly regulated DC-to-DC converter 有权
    高效,紧密调节的DC-DC转换器

    公开(公告)号:US06728118B1

    公开(公告)日:2004-04-27

    申请号:US10293722

    申请日:2002-11-13

    IPC分类号: H02M3335

    摘要: The invention presents a highly efficient, tightly regulated DC-to-DC converter which can be used in various applications, especially multiple output converters. The converter uses a buck converter to produce an intermediate bus voltage. A current-fed double ended circuit, such as bridge or push-pull circuit, couples to the buck converter to provide power to outputs. The double ended circuit operates at about 50% duty. The secondary output filter inductor is not required. With 50% duty cycle operation, the secondary rectifiers are easily controlled by either a self-driven or an external driven circuit. The secondary windings can also be stacked up to simplify the transformer design. In addition, bias voltages needed for control circuitry can also be obtained by adding extra windings to the power transformer and extra rectifier devices.

    摘要翻译: 本发明提出了一种高效,紧密调节的DC-DC转换器,可用于各种应用,特别是多输出转换器。 转换器使用降压转换器产生中间总线电压。 电流馈电双端电路,例如桥接或推挽电路,耦合到降压转换器以向输出提供电力。 双端电路工作在约50%的占空比。 不需要次级输出滤波电感。 通过50%占空比操作,二次整流器可以通过自驱动或外部驱动电路轻松控制。 次级绕组也可以堆叠起来,以简化变压器设计。 此外,控制电路所需的偏置电压也可以通过向电力变压器和额外的整流器装置增加额外的绕组来获得。