2015
DOI: 10.1109/tpel.2015.2396943
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Abstract: The load coils are employed for multiple loads of resonant wireless power transfer in this paper. With the addition of the load coil, this three-coil structure has easy access to transferring power to multiple loads with the advantages of a compact structure and controllable power flow. Both single-load transfer and multiple-load transfer are modeled and analyzed by means of the circuit theory. The transfer quality factor and the load matching factor are utilized in the analysis of efficiency. In the single-lo… Show more

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Cited by 47 publications
(23 citation statements)
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“…The Hamel locus function Hd1,2(f) with the delay are obtained by derivation similar to Equations (3)- (7). The implicit function (Equation (10)) of the delay td and the self-oscillating period T is obtained by letting Hd1,2(f) = 0, and the function is plotted in Figure 6 in the different range of td.…”
Section: Automatic Delay Compensation In Self-oscillating Wpt Systemmentioning
confidence: 99%
See 1 more Smart Citation
“…The Hamel locus function Hd1,2(f) with the delay are obtained by derivation similar to Equations (3)- (7). The implicit function (Equation (10)) of the delay td and the self-oscillating period T is obtained by letting Hd1,2(f) = 0, and the function is plotted in Figure 6 in the different range of td.…”
Section: Automatic Delay Compensation In Self-oscillating Wpt Systemmentioning
confidence: 99%
“…Therefore, the transfer efficiency is not only high, but also remains nearly unchanged in a certain range even when the gap and misalignment varies [1,3,6]. In order to satisfy the condition of close-coupling, the operating frequency is often set to several kHz-several MHz, and the quality-factor (Q) should be as high as 200-2000 [3,5,7,8]. However, many factors, e.g., environmental changes, aging of the resonant tanks, and errors of individual components of mass production, may lead to variations of the operating frequency or circuit parameters including the inductances and the capacitances, which result in severe detuning in the high-Q resonant tanks [8][9][10].…”
Section: Introductionmentioning
confidence: 99%
“…Wireless Power Transfer (WPT) technology is growing in popularity in recent years due to its non-physical connection between the source and the load [1][2][3], and it has been widely used in diverse scenarios, such as toothbrushes, cell phones [4], electrical vehicles [5], and autonomous underwater vehicles (AUVs) [6][7][8]. Energy is a major factor restricting the long-term continuous operation of the AUV in the ocean.…”
Section: Introductionmentioning
confidence: 99%
“…The constant output voltage was also obtained by adjusting equivalent load resistance. However, the equivalent load resistance at maximum efficiency is not the same as that at constant output voltage for a given mutual inductance [13,14]. In order to achieve simultaneously high efficiency and constant output voltage for a wireless charging system, a maximum efficiency point tracking control scheme was proposed to maximize system efficiency [15].…”
Section: Introductionmentioning
confidence: 99%