A design of wide input range triple-mode active rectifier with peak efficiency of 94.2 % and maximum output power of 8 W for wireless power receiver in 0.18 µM BCD

Park, Young-Jun; Park, Hyung-Gu; Lee, Juri; Oh, Seong Jin; Jang, Jae Hyeong; Kim, SangYun; Pu, Young Gun; Hwang, Keum Cheol; Yang, Youngoo; Seo, Munkyo; Lee, Kang-Yoon

doi:10.1007/s10470-015-0650-8

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…The performance comparison with prior works is shown in Table 1 [8,17,18]. The examples from [8,17] are active rectifiers for A4WP standard operating at 6.78 MHz and their efficiencies are 91.5% and 94.2% respectively. The maximum efficiency of [18] is 92.7% when the input frequency is 150 kHz.…”

Section: Resultsmentioning

confidence: 99%

Design of Peak Efficiency of 85.3% WPC/PMA Wireless Power Receiver Using Synchronous Active Rectifier and Multi Feedback Low-Dropout Regulator

Khan

Park

et al. 2018

Energies

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An efficient synchronous active rectifier and Multi Feedback low drop out (LDO) Regulator coupled with a wireless power receiver (WPR) is proposed in this study. An active rectifier with maximum power conversion efficiency (PCE) of 94.2% is proposed to mitigate the reverse leakage current using zero current sensing. Output voltage and current are regulated by multi-feedback LDO regulator, sharing the single path transistor. The proposed chip is fabricated in the 0.18 µm BCD technology having die area of 16.0 mm 2 . A 94.2% power conversion efficiency with the load current of 800 mA is measured for the proposed active rectifier.

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Section: Resultsmentioning

confidence: 99%

Design of Peak Efficiency of 85.3% WPC/PMA Wireless Power Receiver Using Synchronous Active Rectifier and Multi Feedback Low-Dropout Regulator

Khan

Park

et al. 2018

Energies

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“…It consumes a large amount of quiescent power to attain the response time faster. In [7], [8], [15] different frequencies have been proposed for power links such as 6.78 MHz, 13.56 MHz, and 40.68 MHz respectively. For a higher frequency that is 40.68 MHz, the specific absorption ratio (SAR) is larger while reducing the filtering and a resonant capacitor almost by 3x and 9x respectively, compared to a lower frequency which is 13.56 MHz [8].…”

Section: Introductionmentioning

confidence: 99%

A High-Efficiency Triple-Mode Active Rectifier With Gate Charge Recycling Technique for Wireless Power Transfer System

et al. 2022

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This paper presents an active rectifier design with a gate charge recycling technique. Gate switching increases the switching losses of the active rectifier, therefore, as a way to reduce switching losses, the gate charge recycling technique is proposed. The output power of 15 W is achieved to enable rapid charging using the three standards for wireless charging mode, magnetic induction (WPC and PMA), and magnetic resonance (A4WP). Power-sharing is used to lower the amount of power consumed by each standard mode core. In WPC, and PMA mode zero current sensing (ZCS) technique has been used while in the A4WP mode, the digitally controlled delay adjustment (DCDA) technique has been employed. By using a gate charge recycling block, the efficiency has been considerably improved due to the lower power consumption. It aims to increase the overall efficiency by reusing switching loss using the gate charge recycling block, and it has effectiveness by allowing three standard modes to operate with one single chip. The proposed design combines charge-recycling with zero current sensing techniques to improve power efficiency. The layout size is 4.75 µm 2 . The achieved efficiency is 98.6 % in the magnetic induction method (WPC/PMA) at 15 W, and 94.86 % in the magnetic resonance method (A4WP) with an output power level of 15 W. The chip is fabricated in the BCD 0.18 µm CMOS process.INDEX TERMS Active rectifier, deglitch circuit, gate charge recycling, high efficiency, switching loss, wireless power transfer system, zero current sensing.

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A High-Efficiency Rectifier with bootstrapping technique for Wireless Power Transfer System

Ain

Khan

Basim

et al. 2021

2021 IEEE International Conference on Consumer Electronics-Asia (ICCE-Asia)

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A design of wide input range triple-mode active rectifier with peak efficiency of 94.2 % and maximum output power of 8 W for wireless power receiver in 0.18 µM BCD

Cited by 5 publications

References 11 publications

Design of Peak Efficiency of 85.3% WPC/PMA Wireless Power Receiver Using Synchronous Active Rectifier and Multi Feedback Low-Dropout Regulator

Design of Peak Efficiency of 85.3% WPC/PMA Wireless Power Receiver Using Synchronous Active Rectifier and Multi Feedback Low-Dropout Regulator

A High-Efficiency Triple-Mode Active Rectifier With Gate Charge Recycling Technique for Wireless Power Transfer System

A High-Efficiency Rectifier with bootstrapping technique for Wireless Power Transfer System

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