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This paper presents a precise and cost-effective capacitor-based current balancing scheme for multiple LED strings application. Using capacitor's Ampere-Second balance characteristic, the precise current balancing of N LED Strings can be achieved by N−1 Capacitors. Besides, an auto-restart scheme is also presented in this paper to achieve the open circuit protection and to automatically restart the...
A new, humanized integrated simulation platform can be built with the integration of design system, analysis system and display system. It can greatly improve the product design, the assembly process, the analysis process and the work process demonstration; meanwhile, it also can make up for the deficiencies in traditional design methods. Through the analysis on functional requirements, a framework...
Measurements performed at several locations clearly show that frequency spectrum is under-utilized. Cognitive radio is a strong candidate to ensure better spectrum utilization by providing access in an opportunistic manner. Simulations performed on the algorithm that we proposed show promising results in sensing vacant channels in TV bands. Here we present the work, which implements the algorithm...
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