Development of a universal contactless charger for handheld devices

Hu, Chun-Hung; Chen, Ching-Mu; Shiao, Ying-Shing; Chan, Tung-Jung; Chen, Tsair-Rong

doi:10.1109/isie.2008.4677017

Cited by 13 publications

(3 citation statements)

References 5 publications

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“…Separable induction coil is planar spiral coil, the magnetic field distribution is uniform [5] . The secondary side is integrated circuit that requesting devices involved using SMD type to save space.As showed in figure 3, the magnetic ring is used to detect the frequency and amplitude the primary current.The equation…”

Section: System Control Methodsmentioning

confidence: 99%

Design of a Single Load Li-Battery Contactless Charging Platform with Frequency Tracking

Zhao

Yao

2012

AMR

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Wireless energy transfer system uses separable mutual induction coil to transfer energy. According to the load characteristics of rechargeable batteries, the primary and secondary sides constitute the resonant circuit with series compensation to improve power factor and transmission capability of the system. The high frequency signal source circuit of the primary side uses frequency tracking to make the system working accurately at the resonant state. The primary side current keeps constant to make system stable. The system parameters are given optimized under the loosely coupled condition considering voltage gain, frequency bifurcation phenomena and the limit of the size of the secondary side, etc.

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Section: System Control Methodsmentioning

confidence: 99%

Design of a Single Load Li-Battery Contactless Charging Platform with Frequency Tracking

Zhao

Yao

2012

AMR

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“…Also this devise would handy when taken for outdoor trips [6]. Work here is to design and to make universal contact less charger for hand-held device by means of electromagnetic coupling induction [7] and sensor [9]. This paper also extend the idea from voltage scaling [8] for mobile charger to frequency scaling.…”

Section: Literature Reviewmentioning

confidence: 98%

“…There is linear change in Logic Power dissipation, the nature of linearity is in two phase. In first phase, it change by 0.001 W as shown in Equation 7δ − = current next P P (7) Where…”

mentioning

confidence: 99%

Frequency Scaling Based Green Mobile Battery Charge Controller Sensor Design on FPGA

Kaur

Islam

Noor

et al. 2014

AMR

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Frequency Scaling based energy efficient MBCCS is implemented in this paper. In this design, if battery's voltage or current is less than threshold then battery will continue charging. Whereas, if voltage or current is more than threshold then it will ring Overcharge Alarm. With Frequency Scaling, we reduce frequency from 1THz to 25GHz, where 125GHz, 625GHz are intermediate frequency value. There is 97.50%, 100%, 97.54%, 97.48%, 20%, 96.48 % reduction in clock power (CP), logic power (LP), signal power (SP), IOs power (IOP), leakage power and total power dissipation respectively when we scale down frequency from 1 THz to 25GHz.

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Reactive power correction for an inductive power transfer system for EV application: Circuit and Control

Cimen¹,

Popp²,

Schmuelling³

2016

6th Hybrid and Electric Vehicles Conference (HEVC 2016)

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Development of a universal contactless charger for handheld devices

Cited by 13 publications

References 5 publications

Design of a Single Load Li-Battery Contactless Charging Platform with Frequency Tracking

Design of a Single Load Li-Battery Contactless Charging Platform with Frequency Tracking

Frequency Scaling Based Green Mobile Battery Charge Controller Sensor Design on FPGA

Reactive power correction for an inductive power transfer system for EV application: Circuit and Control

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