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    • 36. 发明授权
    • Highly efficient, tightly regulated DC-to-DC converter
    • 高效,紧密调节的DC-DC转换器
    • US06728118B1
    • 2004-04-27
    • US10293722
    • 2002-11-13
    • Qing ChenVictor Ke-Ji Lee
    • Qing ChenVictor Ke-Ji Lee
    • H02M3335
    • H02M3/33592H02M2001/007H02M2001/009Y02B70/1475
    • 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.
    • 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。
    • 37. 发明授权
    • Encapsulated modular boost converter and method of manufacture therefor
    • 封装的模块化升压转换器及其制造方法
    • US5874826A
    • 1999-02-23
    • US960633
    • 1997-10-29
    • Qing ChenDel Ray HilburnAshraf Wagih Lotfi
    • Qing ChenDel Ray HilburnAshraf Wagih Lotfi
    • H02M3/00H02M3/155H02M7/06
    • H02M3/155H02M3/00
    • A boost converter module, a method of manufacturing the module and a power converter employing one or more of the same. In one embodiment, the boost converter module includes: (1) a power switch, (2) first and second snubber diodes series-coupled between the power switch and a converter output, (3) a snubber capacitor and a boost diode series-coupled across the second snubber diode and (4) an encapsulant substantially surrounding the power switch, the first and second snubber diodes, the snubber capacitor and the boost diode to join the power switch, the first and second snubber diodes, the snubber capacitor and the boost diode into an integrated package, the integrated package having: (4a) a control input coupled to the power switch, (4b) a power input coupled to the power switch, (4c) a snubber inductor input, coupled to a node between the snubber capacitor and the boost diode and (4d) a power output coupled to the converter output.
    • 升压转换器模块,制造模块的方法和使用其中的一个或多个的功率转换器。 在一个实施例中,升压转换器模块包括:(1)功率开关,(2)串联耦合在功率开关和转换器输出之间的第一和第二缓冲二极管,(3)缓冲电容器和升压二极管串联耦合 跨越第二缓冲二极管和(4)基本上围绕功率开关的密封剂,第一和第二缓冲二极管,缓冲电容器和升压二极管以连接功率开关,第一和第二缓冲二极管,缓冲电容器和升压 所述集成封装具有:(4a)耦合到所述电源开关的控制输入,(4b)连接到所述电源开关的电源输入,(4c)缓冲电感器输入端,耦合到所述缓冲器之间的节点 电容器和升压二极管,(4d)耦合到转换器输出的功率输出。