An LCC-C Compensated Wireless Charging System for Implantable Cardiac Pacemakers: Theory, Experiment, and Safety Evaluation

Xiao, Chunyan; Cheng, Dingning; Wei, Kangzheng

doi:10.1109/tpel.2017.2735441

Cited by 184 publications

(73 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 MCR-WPT technology can be extended to military, aerospace, coal mining, medical implantation, household appliances, wireless sensor networks, electric vehicles, safety monitoring of buildings and other fields, owing to the advantages of higher transmission efficiency, bigger transmission power, smaller electromagnetic radiation and longer transmission distance. [2][3][4][5][6][7][8] Therefore, it is considered to be one of the most potential techniques for mid-range WPT applications at present.…”

Section: Introductionmentioning

confidence: 99%

Transmission efficiency analysis and optimization of magnetically coupled resonant wireless power transfer system with misalignments

et al. 2018

View full text Add to dashboard Cite

Magnetically coupled resonant (MCR) wireless power transfer (WPT) is a promising technology, which has been widely used in many practical applications. In the practical application environment the misalignments between the transmitting coil and the receiving coil can not be avoided, and it will cause a rapid decline in transmission efficiency. So the misalignments have limited the applications of MCR-WPT technology in many fields. The mathematical formula of transmission efficiency with angular misalignment and lateral misalignment was deduced. And the effects of angular misalignment and lateral misalignment on the transmission efficiency were researched by simulation experiments. And the changing regularity of the transmission efficiency with the change of the angular misalignment and lateral misalignment was obtained. The results show that when there is an angular misalignment between the transmitting coil and the receiving coil, the transmission efficiency can be optimized by adjusting the lateral misalignment between the coils. And when there is a lateral misalignment between the coils, the transmission efficiency can be optimized by adjusting the angular misalignment between the coils. An experimental prototype of MCR-WPT system was built, and experiments had been carried out to evaluate the accuracy of the theoretical analysis. Therefore, the study in this paper lay a theoretical foundation for the analysis of WPT in the complex environment, and also provide a useful reference for the design of WPT system.

show abstract

Section: Introductionmentioning

confidence: 99%

Transmission efficiency analysis and optimization of magnetically coupled resonant wireless power transfer system with misalignments

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The CV characteristics can be obtained by the following analysis. The wireless charging system is in a resonant state when the compensation network satisfies the constraints [22]: When the voltage of the battery is low, the switch is connected to the endpoint 1. At this point, the bilateral L3C compensation network with CC characteristics can charge the battery.…”

Section: Compensation Network Switchingmentioning

confidence: 99%

“…The CV characteristics can be obtained by the following analysis. The wireless charging system is in a resonant state when the compensation network satisfies the constraints [22]:…”

Section: Compensation Network Switchingmentioning

confidence: 99%

Adaptive Smart Control Method for Electric Vehicle Wireless Charging System

et al. 2018

Self Cite

View full text Add to dashboard Cite

In order to shorten the wireless charging time of electric vehicles (EVs) and achieve stable charging, an adaptive smart control method for EV wireless charging is proposed in the paper. The method dynamically tracks the rechargeable battery state during the whole charging process, realizes multi-stage charging of constant current (CC) or constant voltage (CV) by switching two kinds of compensation networks of bilateral L3C and L3C-C, and regulates the charging voltage and current to make it as close as possible to the battery charging characteristic curve. This method can be implemented because the voltage source connected to the coupler and the compensation networks of bilateral L3C and L3C-C have the CC and CV source characteristics, respectively. On the basis of the established adaptive smart control system of EV wireless charging, the experiments of wireless data transmission and adaptive smart charging were conducted. The results showed that the designed control system had a response time of less than 200 ms and strong anti-interference ability and it shortened the charging time by about 16% compared with the time using traditional charging methods, thereby achieving a fast, stable, safe, and complete wireless charging process.

show abstract

“…In papers, 5,15 a minimum output voltage gain variation over the specified coupling coefficient range is achieved by carefully designing the primary resonant compensation network. Similar method is presented in paper, 16 intended to be used for the implantable cardiac pacemakers. Proposed approach offers advantages of limited variation of the output voltage and operating at the fixed switching frequency, but achieved over limited variation of the coupling coefficient range.…”

Section: Introductionmentioning

confidence: 99%

Design of compensation network with variable inductance for wide variation of coupling coefficient in inductive power transfer

Ðurić

Pajnić

2019

Circuit Theory & Apps

View full text Add to dashboard Cite

Summary In this paper, a design of the compensation network with a variable inductor is proposed, considering a wide variation of the coupling coefficient in the inductive power transfer (IPT). The characteristics of the proposed compensation network are analyzed with respect to the variable antenna coupling conditions. The realization of the zero voltage switching (ZVS) and the reactive power demand are discussed through the theoretical deduction and numerical simulation. Influence of the variable inductor on the compensation network characteristics is examined in detail, and the control algorithm for achieving the coupling independent constant output voltage is proposed. Detailed steps to design a prototype fulfilling all performance requirements are given. Verification of the proposed method was carried out on the experimental model. Recorded output voltage variation is within 5% over the wide coupling range, implying a quite well characteristic of the coupling independent voltage output. Experimental results match well with the calculations, validating the rightness of the proposed variable inductor tuning method.

show abstract

An LCC-C Compensated Wireless Charging System for Implantable Cardiac Pacemakers: Theory, Experiment, and Safety Evaluation

Cited by 184 publications

References 29 publications

Transmission efficiency analysis and optimization of magnetically coupled resonant wireless power transfer system with misalignments

Transmission efficiency analysis and optimization of magnetically coupled resonant wireless power transfer system with misalignments

Adaptive Smart Control Method for Electric Vehicle Wireless Charging System

Design of compensation network with variable inductance for wide variation of coupling coefficient in inductive power transfer

Contact Info

Product

Resources

About