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AC-DC converters for low power applications have their unique EMI characteristics compared to the converter for other applications. It has very high DM noise due to the DCM or CRM operation and results in a relatively high transformed CM noise caused by the unbalance of the noise propagation paths. This paper summarized the important unbalanced paths and proposed methods to limit the CM noise caused...
Clock network construction is one key problem in high performance VLSI design. Reducing the clock skew variation is one of the most important objectives during clock network synthesis. Local clock skew (LCS) is the clock skew between any two sinks with distance less than or equal to a given threshold. It is defined in the ISPD 2010 High Performance Clock Network Synthesis Contest, and it is a novel...
This paper presents the design of a high-power-density igniter with integrated LC resonator for low-wattage high-intensity discharge lamp ballasts. Electromagnetic integration technology is applied to reduce the number of passive components and the overall volume of the igniter. By applying the interwinding capacitance as the resonant capacitance, the integrated igniter is simply composed of a magnetic...
In electromagnetic interference (EMI) filters, the huge impact of parasitic parameters on high frequency filter characteristic has been addressed in recent years. Several approaches have been proposed to reduce or cancel the parasitic parameters of the filter components. This paper explores the structural capacitance cancellation concept proposed in [2-3]. General capacitance cancellation condition...
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