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    • 7. 发明授权
    • High power factor, voltage-doubler rectifier
    • 高功率因数,倍压整流器
    • US5119283A
    • 1992-06-02
    • US712371
    • 1991-06-10
    • Robert L. SteigerwaldCharles S. Korman
    • Robert L. SteigerwaldCharles S. Korman
    • H02M7/10H02M1/00H02M1/10H02M1/42H02M7/06H02M7/12H02M9/06
    • H02M1/4208H02M1/10H02M2001/4275Y02B70/126Y02P80/112
    • A voltage-doubler rectifier includes an ac fullbridge diode rectifier and a dc-to-dc converter having two output boost circuits. One of the output boost circuits is coupled between the rectifier and a dc link, and the other output boost circuit is coupled, with opposite polarity, between the rectifier and the circuit common. Two series-connected filter capacitors are also coupled between the dc link and the circuit common. In a preferred embodiment, the two output boost circuits each comprise either a series, parallel, or combination series/parallel resonant circuit and a rectifier. A switch is coupled between the junction joining one pair of diodes of the rectifier and the junction joining the two filter capacitors. For a relatively high ac line voltage, the switch is open, and the circuit operates in a low boost mode. For a relatively low ac line voltage, the switch is closed, and the circuit operates in a high boost, or voltage-doubling, mode.
    • 电压倍增器整流器包括交流全桥二极管整流器和具有两个输出升压电路的直流 - 直流转换器。 输出升压电路中的一个耦合在整流器和直流链路之间,另一个输出升压电路以相反的极性耦合在整流器和电路之间。 两个串联的滤波电容器也耦合在直流链路和电路之间。 在优选实施例中,两个输出升压电路各自包括串联,并联或组合串联/并联谐振电路和整流器。 开关耦合在连接整流器的一对二极管的接点和连接两个滤波电容器的接头之间。 对于相对较高的交流线路电压,开关断开,电路工作在低升压模式。 对于相对较低的交流线路电压,开关闭合,电路工作在高增压或倍压模式。
    • 9. 发明授权
    • High frequency, high density, low profile, magnetic circuit components
    • 高频,高密度,低剖面,磁路元件
    • US5609946A
    • 1997-03-11
    • US538488
    • 1995-10-03
    • Charles S. KormanIsrael S. JacobsJohn A. MallickWaseem A. Roshen
    • Charles S. KormanIsrael S. JacobsJohn A. MallickWaseem A. Roshen
    • H01F10/32H01F17/04B32B9/00
    • B82Y25/00H01F10/3254H01F17/04Y10T428/24917Y10T428/24926
    • A high frequency, high density, low profile magnetic circuit component includes a magnetic core having a first magnetic layer and a second magnetic layer with a conductive layer deposited therebetween, each magnetic layer being a multilayer structure comprised of alternating magnetic and insulating films. The magnetic films are anisotropic and are driven along their magnetic hard axis in order to reduce excess eddy current losses. To reduce fringing field eddy current losses, a distributed air gap is structured in the magnetic layers. The magnetic core has a distributed air gap formed therein in order to minimize eddy current losses in the conductive layer. The conductive layer has a conductive material patterned on a insulating substrate and is situated between the first and second magnetic layers such that the conductive material extends beyond the peripheries of the first and second magnetic layers, thereby maximizing the amount of magnetic material that is driven in the hard axis.
    • 高频,高密度,低轮廓的磁路组件包括具有第一磁性层的磁芯和其间沉积有导电层的第二磁性层,每个磁性层是由交替的磁性和绝缘膜构成的多层结构。 磁性膜是各向异性的,并沿其磁性硬轴驱动,以减少额外的涡流损耗。 为了减少边缘场涡流损耗,在磁层中形成分布式气隙。 磁芯具有形成在其中的分布式气隙,以便最小化导电层中的涡流损耗。 导电层具有在绝缘基板上图案化的导电材料,并且位于第一和第二磁性层之间,使得导电材料延伸超过第一和第二磁性层的周边,从而最大化驱动的磁性材料的量 硬轴。