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Technology advancement has recently made it attractive to replace the flash quantizer (QTZ) in a multibit ΔΣ modulator by an asynchronous successive-approximation-register (ASAR) QTZ to improve the overall power efficiency [1]. However, limited by the SAR throughput, most works in this regime report only a small signal bandwidth. To achieve a wide bandwidth, a lower oversampling ratio (OSR) can be...
This paper presents a cell balancing management for battery pack. It is used for each cell in battery pack to protect pack from damages such as overheating and overvoltage taken by the different performances between different cells, it manages individual cell with CC-CV charging strategy, shunts charge current smoothly to protect every cell preferably; in order to be suitable for different charge...
A switch-mode Li-ion battery charger is proposed. It is suitable for input power supply of wall adaptor or USB port in modern portable apparatus. When it works under USB port supply, its input current is automatically limited at a presetting value. A power-path management is introduced in to realize charging and power supply simultaneously based on load priority. It also realizes smooth transition...
Numerous global manufacturing firms use China as their manufacturing platform and are engaged in processing trade for global markets. They are engaged in export processing operation through the form of processing with supplied materials(PSM) and processing with purchased materials(PPM). The major goal of this paper is to explore, from the perspective of export processing in China, the key characteristics...
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