This paper proposes a new single-inductor multi-inputmulti-output (MIMO) DC-DC converter. The proposed converter allows input sources to be added or removed without affecting the input side and the output side. Meanw...
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ISBN:
(纸本)9781728133201
This paper proposes a new single-inductor multi-inputmulti-output (MIMO) DC-DC converter. The proposed converter allows input sources to be added or removed without affecting the input side and the output side. Meanwhile, output channels are independently controlled. The corresponding control method is the constant current control. When the constant current control is applied to all input cells, the power provided by each source is proportional to the corresponding voltage value. When the constant current control is applied to some of the input cells, the other sources can provide specific power through direct duty-cycle control of input cells. Moreover, the consideration of switching time of switches is unnecessary. Therefore, it is easy to realize the high extension capability for arbitrary inputs/outputs. A dual-input dual-output prototype is constructed to illustrate the performance of the proposed converter.
This paper presents a low-quiescent-power battery-free energy harvesting interface for micro-watt to milliwatt applications with a single-inductor dual-input dual-output (SIDIDO) buck-boost converter. The system conta...
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ISBN:
(纸本)9798350349146;9798350349139
This paper presents a low-quiescent-power battery-free energy harvesting interface for micro-watt to milliwatt applications with a single-inductor dual-input dual-output (SIDIDO) buck-boost converter. The system contains one renewable source input, one regulated output and one bidirectional energy transfer node with a storage capacitor for storage and reuse the energy. To achieve high power conversion efficiency (PCE) with micro-watt input power, we embedded dynamic-power-gating under-voltage lockout (DPG-UVLO) circuit, dynamic-voltage-feedback (DVFB) and pulse-frequency modulation (PFM) control to reduce quiescent power. The measurement quiescent power is 1.9 mu W and the peak PCE is 86.4%.
In this paper, a new topology for bidirectional multi-inputmulti-output buck direct current-direct current converter is proposed. For the proposed converter, the number of inputs and outputs is arbitrary and independ...
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In this paper, a new topology for bidirectional multi-inputmulti-output buck direct current-direct current converter is proposed. For the proposed converter, the number of inputs and outputs is arbitrary and independent from each other. Moreover, the number of components of the proposed structure is less than the conventional type of the bidirectional multi-inputmulti-output buck direct current-direct current converter. The proposed converter can be used in applications that require separate voltage levels with bidirectional current path. The possibility of using different energy sources with different voltage-current characteristics, lower cost, continuous input current, and transformerless output are the major advantages of the converter. In this paper, the different operating modes of the proposed converter are explained. The performance and correctness operation of the proposed converter are validated by the simulation and experimental results.
A hybrid distributed generation system (HDGS) using a multi-inputmulti-output positive buck-boost converter (MIMO-PBBC) is proposed for the supply-side of the grid-connected photovoltaic (PV) generation power plant, ...
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ISBN:
(纸本)9781509061730
A hybrid distributed generation system (HDGS) using a multi-inputmulti-output positive buck-boost converter (MIMO-PBBC) is proposed for the supply-side of the grid-connected photovoltaic (PV) generation power plant, where three PV clusters, one battery bank, and one supercapacitor module are hybridized and regulated by a centralized three-phase dc-ac inverter with their corresponding control systems. The major functionalities of the proposed systems including reactive power control, dc-link voltage regulation, low-voltage ride-through and maximum power point tracking are validated with excellent performance via computational simulation.
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