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    • 7. 发明申请
    • METHOD AND APPARATUS FOR GROUNDING A HEAT SINK IN THERMAL CONTACT WITH AN ELECTRONIC COMPONENT USING A GROUNDING SPRING HAVING MULTIPLE-JOINTED SPRING FINGERS
    • 使用具有多个连接的弹簧手指的接地弹簧接触与电子部件热接触的散热器的方法和装置
    • US20080002367A1
    • 2008-01-03
    • US11853418
    • 2007-09-11
    • Don GillilandMax Koschmeder
    • Don GillilandMax Koschmeder
    • H05K7/20
    • H01L23/552H01L23/4093H01L2924/0002H01L2924/00
    • A grounding spring for electromagnetic interference (EMI) suppression is interposed between a heat sink and a printed circuit board (PCB). The grounding spring comprises a conductive material having an opening formed at its base through which the heat sink makes thermal contact with an electronic module mounted on the PCB. The base makes electrical contact with a peripheral surface of the heat sink, and multiple-jointed spring fingers extend from the base to make electrical contact with conductive pads on the PCB. During compression, the movement of each spring finger's tip is substantially limited to the z-axis. Accordingly, the final installed location of the tip can be precisely controlled even when the grounding spring must accommodate a wide variety of installed heights of the heat sink relative to the PCB. Preferably, the spring fingers terminate with a concave tip that is less susceptible to sliding off the conductive pads.
    • 用于电磁干扰(EMI)抑制的接地弹簧介于散热器和印刷电路板(PCB)之间。 接地弹簧包括导电材料,其具有形成在其底部的开口,散热器通过该开口与安装在PCB上的电子模块进行热接触。 基座与散热器的外周表面电接触,多接头弹簧指从基座延伸以与PCB上的导电焊盘电接触。 在压缩期间,每个弹簧手指的尖端的运动基本上限于z轴。 因此,即使当接地弹簧必须适应相对于PCB的散热器的各种各样的安装高度时,尖端的最终安装位置也可被精确地控制。 优选地,弹簧指终止于不太易于从导电垫滑下的凹形尖端。
    • 9. 发明申请
    • Variable reluctance ferrite core
    • 可变磁阻铁氧体磁芯
    • US20060232354A1
    • 2006-10-19
    • US11106005
    • 2005-04-14
    • Don Gilliland
    • Don Gilliland
    • H04B3/28
    • H04B3/28H01F21/06H01F21/10H01F2017/065
    • A device, system, and method for suppressing electromagnetic interference (EMI). In one embodiment, an EMI suppression device includes a compound ferrite core having an inner ferrite core and an outer ferrite core. The inner core includes a through hole in which a conductor may be mounted, and the outer core includes a hole in which said inner core is mounted in a concentrically offset manner. The outer core is rotatably adjustable with respect to the inner core in a manner such that the ferrite circuit cross-section area may be varied. The magnetic reluctance of the compound core is controlled in accordance with EMI suppression requirements by adjusting the circuit cross-section area.
    • 用于抑制电磁干扰(EMI)的装置,系统和方法。 在一个实施例中,EMI抑制装置包括具有内部铁氧体磁芯和外部铁氧体磁芯的复合铁氧体磁芯。 内芯包括可以安装导体的通孔,并且外芯包括以同心偏心的方式安装所述内芯的孔。 外芯可以相对于内芯可旋转地调节,使得铁氧体电路的横截面积可以变化。 根据EMI抑制要求,通过调整电路横截面积来控制复合磁芯的磁阻。