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Wireless Power Transfer (WPT) is an emerging technology with a huge variety of possible applications, including wireless charging of mobile devices like smart-phones or tablet computers. In this work, a WPT receiver system integrated on a silicon chip is proposed to maximize the efficiency of the system. The presented chip is produced in a low cost standard 130 nm CMOS process with a high voltage...
In this paper different output stage topologies for DC-DC buck converters in 65 nm CMOS technology operating in Pulse Width Modulation - Discontinuous Conduction Mode for battery voltages up to 5 V are compared. The paper shows which parameters of the power transistors have to be considered for highly efficient DC-DC buck converter designs. Furthermore the different output stage topologies are compared...
This paper presents a highly efficient switched capacitor (SC) DC-DC converter, which is implemented in a 65nm low power CMOS process to enable SoC integration. The converter supplies a nominal output current of 30mA with an efficiency of 95%. The buck converter operates with a constant input voltage of 1.83V and produces an output voltage of 1.2V. The charge is transported in two phases from the...
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