Results 21 to 30 of about 1,788,336 (302)
Input-output impact analysis in current or constant prices: does it matter? [PDF]
Journal of Economic Structures, 2012 This paper addresses the question whether the results of input-output (IO) impact analyses differ (and to what extent) when a framework in current prices or in constant prices is used. We consider the effect of an exogenous stimulus of final demand in current prices on (a) gross output in constant prices, and (b) employment. In an empirical application
Dietzenbacher, Erik, Temurshoev, Umed
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SPWM Inverter Control for Wireless Constant Current and Voltage Charging
World Electric Vehicle Journal, 2023 Constant current (CC) and constant voltage (CV) charging of batteries is a crucial research area in the practical implementation of wireless power transfer (WPT) systems. The typical charging process of a battery starts from the constant current mode. As
Kang Sun, Wangqiang Niu
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IEEE Access, 2021 Fully digital current mode constant on-time (COT) control buck converter with output voltage offset cancellation is presented in this paper. Current mode COT can achieve fast transient response and low output voltage ripple with additional current path ...
Kai-Yu Hu +3 more
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An LED Drive Circuit with Constant-Output-Current Control and Constant-Luminance Control
An LED Drive Circuit with Constant-Output-Current Control and Constant-Luminance Control, 2006 A Single LED is very small, and their luminance is related to the amount of driving current. Sufficient luminance for an illuminator requires many LEDs to be connected together and a constant current supplied to each LED. Therefore, the LED drive circuit must have constant-output-current control and/or constant-luminance control.
Masahiro Nishikawa +3 more
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A Fractional-Order Resonant Wireless Power Transfer System With Inherently Constant Current Output
IEEE Access, 2020 Wireless power transfer (WPT) using magnetic-coupling resonant has been proved to be a promising transmission method. At present, most of the existing resonant WPT systems adopt integer-order inductors and capacitors.
Yanwei Jiang, Bo Zhang, Jiali Zhou
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Sensitivity analysis of wireless power transmission
Energy Reports, 2021 The compensation networks that realize constant current/constant voltage in the wireless power transfer are high-order resonant networks, and there are multiple resonance frequency points to achieve load-independent constant current/constant voltage ...
Da Li +4 more
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IEEE Access, 2019 This paper presents an inductive-power transfer (IPT) system with load-independent constant current (CC) and constant voltage (CV) charging characteristics for low power systems.
Hailong Zhang +3 more
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Energies, 2022 As a technology that makes power transfer more flexible, wireless power transfer (WPT) technology has become a hot research topic in recent years. However, most of the existing studies are based on a DC–DC WPT system.
Lu Zhang +4 more
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Energies, 2022 Due to the high power density, inherent zero-voltage-switching (ZVS), and high voltage-conversation ratio, the current source-based isolated dual-active-bridge DAB–DC/DC converters are extensively used for charging EVs under constant-current mode ...
Muhammad Husnain Ashfaq +6 more
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A Constant current constant Voltage output mode of LED Drive [PDF]
Proceedings of the 2016 International Conference on Civil, Transportation and Environment, 2016 In this paper, we design a LED driver, power factor correction circuit topology used + quasi resonant flyback type two level structure, the quasi resonant flyback type DC/DC transform part of the small signal model, design the system feedback loop parameters, to achieve the constant current drive + constant voltage output mode.
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