A 0.23 $\mu \text{W}$ , 96 mV Input Voltage DC–DC Converter for Body Sensor Nodes

Pasca, Mirko; D'Amico, S.; Basçhirotto, A.

doi:10.1109/jsen.2015.2442174

Cited by 12 publications

(15 citation statements)

References 13 publications

(12 reference statements)

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“…External gate biasing technique adopts a similar concept but through the aid of external peripherals [73]. Clock boosting techniques [74] as external gate control elements can be generated by level shifters [75], LC-oscillators [76][77][78], ringoscillators [64], multiphase-multi voltage level clock generator, or bootstrapping techniques. These techniques provide an improvement in the clock voltage swing of more than 3x of the input supply voltage, reducing conduction losses.…”

Section: B Review Of Charge-pumpmentioning

confidence: 99%

Low-Voltage Capacitive-Based Step-Up DC-DC Converters for RF Energy Harvesting System: A Review

et al. 2020

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Bulky off-chip inductors are predominantly adopted for inductive-based step-up DC-DC converter in RF energy harvesting (RFEH) systems, which impose a restriction in physical form factor for miniaturized device. This paper review and explores the capacitive-based step-up DC-DC converters (charge-pump) as voltage boosting element for low-voltage RFEH systems. An overview of RFEH is established and a comprehensive review of CMOS charge-pump is followed along with the complementary frequency generation circuit used as a clocking element. Key design considerations of charge-pump circuits are included here along with recommendations to circumvent its bottlenecks for future development in RFEH systems. INDEX TERMS-RF energy harvesting (RFEH), charge-pump, capacitive-based converters, DC-DC converter, CMOS.

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Section: B Review Of Charge-pumpmentioning

confidence: 99%

Low-Voltage Capacitive-Based Step-Up DC-DC Converters for RF Energy Harvesting System: A Review

et al. 2020

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“…In order to further increase the output voltage, a two-stage Pelliconi's charge pump has been inserted ( Figure 5) [Veri et al, 2016;Pelliconi et al, 2001;Pasca et al, 2015]. It also provides an isolation of the output load from the input RF signal.…”

Section: The Charge Pumpmentioning

confidence: 99%

RF‐DC converter for HF RFID sensing applications powered by a near‐field loop antenna

et al. 2016

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In this paper, an RF‐DC converter operating at 13.56 MHz (HF radio frequency identification (RFID) frequency band) is presented. Its architecture provides RF to load isolation, reducing the losses due to the reverse saturation current and improving the sensitivity. Fed by a loop antenna, the RF‐DC converter is made by a Dickson's RF‐DC rectifier and an additional Pelliconi's charge pump driven by a fully integrated 50 kHz ring oscillator realized using an application‐specific integrated circuit (ASIC). The input RF signal from the reader is converted to DC supply voltage and stored on a 1 μF capacitor. Mathematical model of the converter is developed and verified through measurements. Silicon prototypes of the ASIC have been realized in 350 nm complementary metal‐oxide semiconductor technology. Measurements have been done on 10 different samples showing an output voltage in the range of 0.5 V–3.11 V in correspondence of an RF input signal power in the range of −19 dBm–0 dBm. These output voltage levels are suitable to power HF RFID sensing platforms and sensor nodes of body sensor networks.

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“…In order to provide an isolation between the output capacitance and the input RF source, a five‐stage Pelliconi's charge pump [ Pelliconi et al ., ; Pasca et al ., ], driven by a LC oscillator, has been interposed between the RF‐DC rectifier output and C L 1 || C L 2 . Its circuital model is depicted in Figure .…”

Section: Architecture Of the Power Management Circuitmentioning

confidence: 99%

UHF front‐end feeding RFID‐based body sensor networks by exploiting the reader signal

et al. 2016

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This paper presents an integrated, high‐sensitivity UHF radio frequency identification (RFID) power management circuit for body sensor network applications. The circuit consists of a two‐stage RF‐DC Dickson's rectifier followed by an integrated five‐stage DC‐DC Pelliconi's charge pump driven by an ultralow start‐up voltage LC oscillator. The DC‐DC charge pump interposed between the RF‐DC rectifier and the output load provides the RF to load isolation avoiding losses due to the diodes reverse saturation current. The RF‐DC rectifier has been realized on FR4 substrate, while the charge pump and the oscillator have been realized in 180 nm complementary metal oxide semiconductor (CMOS) technology. Outdoor measurements demonstrate the ability of the power management circuit to provide 400 mV output voltage at 14 m distance from the UHF reader, in correspondence of −25 dBm input signal power. As demonstrated in the literature, such output voltage level is suitable to supply body sensor network nodes.

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A 0.23 $\mu \text{W}$ , 96 mV Input Voltage DC–DC Converter for Body Sensor Nodes

Cited by 12 publications

References 13 publications

Low-Voltage Capacitive-Based Step-Up DC-DC Converters for RF Energy Harvesting System: A Review

Low-Voltage Capacitive-Based Step-Up DC-DC Converters for RF Energy Harvesting System: A Review

RF‐DC converter for HF RFID sensing applications powered by a near‐field loop antenna

UHF front‐end feeding RFID‐based body sensor networks by exploiting the reader signal

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