A 73.9%-Efficiency CMOS Rectifier Using a Lower DC Feeding (LDCF) Self-Body-Biasing Technique for Far-Field RF Energy-Harvesting Systems

Moghaddam, Amin Khalili; Chuah, Joon Huang; Ramiah, Harikrishnan; Ahmadian, J.; Mak, Pui-In; Martins, Rui P.

doi:10.1109/tcsi.2016.2623821

Cited by 80 publications

(20 citation statements)

References 31 publications

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“…The capacitor ratio can be selected to be close to 1 such as 0.9. The transistor size W /L can be obtained by solving (17). In our 0.18 μm CMOS process, W /L is found to be 500.…”

Section: Fig 17 Output Voltage Versus Transistor Size W/l In Strong-mentioning

confidence: 99%

Modelling and optimisation of high‐efficiency differential‐drive complementary metal–oxide–semiconductor rectifier for ultra‐high‐frequency radio‐frequency energy harvesters

Liang

Yuan

2019

IET Power Electronics

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Differential-drive cross-coupled (DDCC) rectifier is an important type of rectifier for radio-frequency energy harvesting. In this study, the analytical model of a DDCC rectifier is derived. With this model, optimisation procedures for most powerefficient rectifiers are derived. The model is verified extensively with Spectre simulations using the more complicated BSIM transistor model. Simulation results are further verified with measurements from reported rectifier designs. This study shows that DDCC rectifiers with the efficiency of 80.7% could ideally be achieved with −30 dBm sensitivity following the optimisation procedures introduced in this work.

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“…The capacitor ratio can be selected to be close to 1 such as 0.9. The transistor size W /L can be obtained by solving (17). In our 0.18 μm CMOS process, W /L is found to be 500.…”

Section: Fig 17 Output Voltage Versus Transistor Size W/l In Strong-mentioning

confidence: 99%

Modelling and optimisation of high‐efficiency differential‐drive complementary metal–oxide–semiconductor rectifier for ultra‐high‐frequency radio‐frequency energy harvesters

Liang

Yuan

2019

IET Power Electronics

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“…It brings a dramatical improvement of PCE performance. Different from previous papers, in [22] the body terminals of MOSFET are statically biased, which means the bias voltages do not change during a period of input signal. And [23,24,25,26] are based on the Dickson charge-pump topology.…”

Section: Introductionmentioning

confidence: 96%

A high efficiency CMOS RF rectifier for RF energy harvesting with dynamic self-body-biasing technique

Liu

et al. 2019

IEICE Electron. Express

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In this paper, a radio frequency (RF) rectifier is proposed for RF energy harvesting. The proposed rectifier adopts a dynamic self-bodybiasing technique to modulate the threshold voltage of MOSFET. It can improve the power conversion efficiency (PCE) of the rectifier. Designed with SMIC 0.18 µm CMOS standard process, simulation results indicate that the proposed rectifier has higher PCE than conventional cross coupled rectifier when the input power is larger than −14 dBm. The PCE of proposed rectifier achieves 72.3% when the input power is −3.7 dBm.

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“…With the development of the Internet of Things and wearable devices, the low supply voltage and low power requirements of these applications challenge the power management circuit design. The micro energy harvesting technology, as a reliable solution, can generate electrical energy from other energy sources like solar [1,2,3], vibrations [4], thermal [5,6,7,8,9,10,11,12,13,14,15,16,17,18], piezoelectric [19,20,21] and radio waves [22,23,24]. However, the voltage generated by thermoelectric generators (TEGs) or photovoltaic (PV) panels is only a few tens of millivolts or a few hundred millivolts, which is hard to drive general circuits.…”

Section: Introductionmentioning

confidence: 99%

A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting

Guo

Chen

Lei

et al. 2020

IEICE Electron. Express

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A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting is presented in this paper. It is found that the cross-coupled LC oscillator with asymmetric inductors can output much higher voltage than ordinary oscillators. Thus, the asymmetric inductors reconfigurable technology (AIRT) is used in the self-start circuit and a minimum startup voltage of 150mV is achieved. The AIRT realizes dual-output and improves the utilization of chip pins by reusing inductors in the self-start circuit and the boost system. The self-start circuit and the boost system are implemented in a 0.13µm CMOS process and a 73.7% converter efficiency is achieved. The chip area of the boost converter is 0.155mm 2. The area occupied by self-start circuit is only of 0.006mm 2 without other extra energy sources.

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A 73.9%-Efficiency CMOS Rectifier Using a Lower DC Feeding (LDCF) Self-Body-Biasing Technique for Far-Field RF Energy-Harvesting Systems

Cited by 80 publications

References 31 publications

Modelling and optimisation of high‐efficiency differential‐drive complementary metal–oxide–semiconductor rectifier for ultra‐high‐frequency radio‐frequency energy harvesters

Modelling and optimisation of high‐efficiency differential‐drive complementary metal–oxide–semiconductor rectifier for ultra‐high‐frequency radio‐frequency energy harvesters

A high efficiency CMOS RF rectifier for RF energy harvesting with dynamic self-body-biasing technique

A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting

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