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公开(公告)号：US20170181257A1
公开(公告)日：2017-06-22
申请号：US15127691
申请日：2014-06-16
申请人： Cyrous Rostamzadeh , Shijie Wang , Rajesh Das , Steven Gladstein , Timothy Foster , Allen Marecki , Sanjai Master
发明人： Cyrous Rostamzadeh , Shijie Wang , Rajesh Das , Steven Gladstein , Timothy Foster , Allen Marecki , Sanjai Master
CPC分类号： H05B41/2806 , H02M1/12 , H02M1/42 , H02M1/44 , H02M7/003 , H02M2001/123 , H05B37/0272 , H05B41/24 , H05K1/0234 , Y02B20/22
摘要： A connected light node (CLN) induction light ballast module for powering an induction lamp includes a printed circuit board having components mounted thereon and an earth ground region electrically isolated from a PCB ground region. A heat sink is disposed on a lower layer of the printed circuit board and electrically connected to the earth ground region, wherein a parasitic capacitance occurs between the printed circuit board ground region and the heat sink. A capacitive shield sandwiched by a lower insulating pad and an upper insulating pad is electrically isolated from the heat sink supporting the shield. A damping network electrically connects the capacitive shield to the PCB ground region. Switch-mode power converters are mounted above the upper insulating pad and the shield. The damping network suppresses noise by a parasitic capacitance between the PCB ground region and the heat sink during high frequency power converter operation.
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公开(公告)号：US08089266B2
公开(公告)日：2012-01-03
申请号：US12187075
申请日：2008-08-06
IPC分类号： G01R15/18
CPC分类号： G01R31/001 , G01R31/006 , G01R31/021
摘要： A device for measuring currents induced in a CAN bus harness. In some embodiments, the device includes a first termination node, a second termination node, a current separator, a detection circuit, and a power source circuit. The current separator circuit has an RF transformer connected to the first termination node and separates a common mode RF current and a differential mode RF current of an RF current signal. The detection circuit is connected to the current separator circuit and receives at least one of the common mode RF current and the differential mode RF current from the separator circuit. The detection circuit also converts the common mode RF current and differential mode RF current to an non-RF output signal. The power source circuit provides power to the detection circuit.
摘要翻译： 用于测量CAN总线线束感应电流的装置。 在一些实施例中，该设备包括第一终端节点，第二终端节点，电流分离器，检测电路和电源电路。 当前的分离器电路具有连接到第一终端节点的RF变压器，并且分离RF电流信号的共模RF电流和差模RF电流。 检测电路连接到电流分离器电路，并从分离器电路接收共模RF电流和差模RF电流中的至少一个。 检测电路还将共模RF电流和差模RF电流转换为非RF输出信号。 电源电路为检测电路提供电源。
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公开(公告)号：US20100033165A1
公开(公告)日：2010-02-11
申请号：US12187075
申请日：2008-08-06
IPC分类号： G01R19/00
CPC分类号： G01R31/001 , G01R31/006 , G01R31/021
摘要： A device for measuring currents induced in a CAN bus harness. In some embodiments, the device includes a first termination node, a second termination node, a current separator, a detection circuit, and a power source circuit. The current separator circuit has an RF transformer connected to the first termination node and separates a common mode RF current and a differential mode RF current of an RF current signal. The detection circuit is connected to the current separator circuit and receives at least one of the common mode RF current and the differential mode RF current from the separator circuit. The detection circuit also converts the common mode RF current and differential mode RF current to an non-RF output signal. The power source circuit provides power to the detection circuit.
摘要翻译： 用于测量CAN总线线束感应电流的装置。 在一些实施例中，该设备包括第一终端节点，第二终端节点，电流分离器，检测电路和电源电路。 当前的分离器电路具有连接到第一终端节点的RF变压器，并且分离RF电流信号的共模RF电流和差模RF电流。 检测电路连接到电流分离器电路，并从分离器电路接收共模RF电流和差模RF电流中的至少一个。 检测电路还将共模RF电流和差模RF电流转换为非RF输出信号。 电源电路为检测电路提供电源。
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