Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Hamed Abbasizadeh"'
Autor:
Imran Ali, Hamed Abbasizadeh, Muhammad Riaz Ur Rehman, Muhammad Asif, Seong Jin Oh, Young Gun Pu, Minjae Lee, Keum Cheol Hwang, Youngoo Yang, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 8, Pp 97215-97230 (2020)
In this paper, an ultra-low power, adaptive all-digital integer frequency-locked loop (FLL) with gain estimation and constant current digitally controlled oscillator (DCO) for Bluetooth low energy (BLE) transceiver in Internet-of-Things (IoT) is pres
Externí odkaz:
https://doaj.org/article/bd1229ba670144f2bf8ff842ccb2b8d2
Publikováno v:
IEEE Access, Vol 7, Pp 17772-17779 (2019)
In this paper, a new two-stage class-AB operational trans-conductance amplifier (OTA) is proposed. Using active loads in the first stage and improved recycling structure, the effective trans-conductance of the first stage is increased. The nonlinear
Externí odkaz:
https://doaj.org/article/2100aedd131f4c37be4276ccbce1e3b3
Autor:
Hamed Abbasizadeh, Arash Hejazi, Behnam Samadpoor Rikan, Sang Yun Kim, Jongseok Bae, Jong Min Lee, Jong Ho Moon, Jong Jin Park, Young Gun Pu, Keum Cheol Hwang, Youngoo Yang, Dong In Kim, Kang-Yoon Lee
Publikováno v:
Energies, Vol 13, Iss 5, p 1023 (2020)
In this paper, a Radio Frequency (RF) energy harvester (EH) system for Internet of Things (IoT)-related applications is presented. The proposed EH architecture operates at 5.2 GHz band and utilizes multiple rectenna. This approach enhances the effici
Externí odkaz:
https://doaj.org/article/d3790e58450947189f4f18af43c3f71f
Autor:
Hamed Abbasizadeh, Sang Yun Kim, Behnam Samadpoor Rikan, Arash Hejazi, Danial Khan, Young Gun Pu, Keum Cheol Hwang, Youngoo Yang, Dong In Kim, Kang-Yoon Lee
Publikováno v:
Sensors, Vol 19, Iss 21, p 4676 (2019)
This paper presents a duty cycle-based, dual-mode simultaneous wireless information and power transceiver (SWIPT) for Internet of Things (IoT) devices in which a sensor node monitors the received power and adaptively controls the single-tone or multi
Externí odkaz:
https://doaj.org/article/eb23918106ea43888a2e7f2116b4c36a
Autor:
Behnam Samadpoor Rikan, Sang-Yun Kim, Nabeel Ahmad, Hamed Abbasizadeh, Muhammad Riaz Ur Rehman, Khuram Shehzad, Arash Hejazi, Reza E. Rad, Deeksha Verma, Kang-Yoon Lee
Publikováno v:
Sensors, Vol 18, Iss 12, p 4199 (2018)
This paper presents a second-order discrete-time Sigma-Delta (SD) Analog-to-Digital Converter (ADC) with over 80 dB Signal to Noise Ratio (SNR), which is applied in a signal conditioning IC for automotive piezo-resistive pressure sensors. To reduce t
Externí odkaz:
https://doaj.org/article/84d372128e924b4098a68da40c788886
Autor:
Behnam Samadpoor Rikan, Sang-Yun Kim, Hamed Abbasizadeh, Arash Hejazi, Reza E. Rad, Khuram Shehzad, Keum Cheol Hwang, Youngoo Yang, Minjae Lee, Kang-Yoon Lee
Publikováno v:
Energies, Vol 11, Iss 10, p 2673 (2018)
This paper presents a successive approximation register (SAR) analog-to-digital converter (ADC) designed for a wireless power transfer system. This is a four–channel SAR ADC structure with 10-bit resolution for each channel, which can also be appli
Externí odkaz:
https://doaj.org/article/0e108d2d2cc44a3494c81144f196075a
Autor:
Danial Khan, Hamed Abbasizadeh, Sang-Yun Kim, Zaffar Hayat Nawaz Khan, Syed Adil Ali Shah, Young Gun Pu, Keum Cheol Hwang, Youngoo Yang, Minjae Lee, Kang-Yoon Lee
Publikováno v:
Energies, Vol 11, Iss 5, p 1258 (2018)
In this paper, a low-power reconfigurable ambient Radio Frequency to Direct Current power (RF–DC) converter using an internal threshold voltage cancellation (IVC) scheme with an auxiliary transistors block is presented. A maximum power point tracki
Externí odkaz:
https://doaj.org/article/8cdad8d000f143d3a26372019f6a608e
Autor:
Zaffar Hayat Nawaz Khan, Young-Jun Park, Seong Jin Oh, Byeong Gi Jang, Seong-Mun Park, Hamed Abbasizadeh, Young Gun Pu, Keum Cheol Hwang, Youngoo Yang, Minjae Lee, Kang-Yoon Lee
Publikováno v:
Energies, Vol 11, Iss 3, p 479 (2018)
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
Externí odkaz:
https://doaj.org/article/6eb109f4cb3143d0a22bc3a424cfcae4
Autor:
Seong Jin Oh, Keum Cheol Hwang, YoungGun Pu, Muhammad Riaz Ur Rehman, Hamed Abbasizadeh, Youngoo Yang, Kang-Yoon Lee, Muhammad Asif, Minjae Lee, Imran Ali
Publikováno v:
IEEE Access, Vol 8, Pp 97215-97230 (2020)
In this paper, an ultra-low power, adaptive all-digital integer frequency-locked loop (FLL) with gain estimation and constant current digitally controlled oscillator (DCO) for Bluetooth low energy (BLE) transceiver in Internet-of-Things (IoT) is pres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a71584c1890d82a2818c92558a40e2bc
https://doi.org/10.1109/access.2020.2995853
https://doi.org/10.1109/access.2020.2995853
Publikováno v:
IET Circuits, Devices & Systems. 13:614-621
Operational trans-conductance amplifiers (OTAs) are an essential building block in analogue and mixed-signal circuits. In this study, a new two-stage class-AB OTA is proposed. The class-AB operation is obtained without extra power dissipation, and wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bf5c0681105ba7106590ab69f0bb3c5
https://doi.org/10.1049/iet-cds.2018.5038
https://doi.org/10.1049/iet-cds.2018.5038