Electronic Interface for Lidar System and Smart Cities Applications

Pantoli, Leonardo; Barile, Gianluca; Leoni, Alfiero; Muttillo, Mirco; Stornelli, Vincenzo

doi:10.24138/jcomss.v15i2.692

Cited by 9 publications

(3 citation statements)

References 32 publications

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“…One of the main downsides of using CCIIs is their lack of a low impedance voltage output terminal, making it cumbersome to use in a voltage mode processing chain [33][34][35][36][37][38]. Recently, a novel mixed-mode analog active block, named Second-generation voltage conveyor (VCII), has been proposed to overcome that limitation [15][16][17] and used in many applications [39][40][41][42][43]. As its name suggests, it can be considered the dual version of a CCII; it is a three terminal building block (Figure 4) whose terminal cross-relationships are fully described by the following matrix, which includes non-ideal parasitic impedance parameters on its terminals: From Equation (2), it is possible to make the following considerations: The Y terminal is a current input; therefore, its impedance should ideally be equal to zero.…”

Section: Electronic Interfacementioning

confidence: 99%

A Second-Generation Voltage-Conveyor-Based Interface for Ultrasonic PVDF Sensors

et al. 2021

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Exploiting the transmission and reception of low frequency ultrasounds in air is often associated with the innate echolocating abilities of some mammals, later emulated with sophisticated electronic systems, to obtain information about unstructured environments. Here, we present a novel approach for the reception of ultrasounds in air, which exploits a piezopolymer broadband sensor and an electronic interface based on a second-generation voltage conveyor (VCII). Taking advantage of its capability to manipulate both voltage and current signals, in this paper, we propose an extremely simple interface that presents a sensitivity level of about −100 dB, which is in line with commercially available references. The presented results are obtained without any filtration stage. The second-generation voltage conveyor active device is implemented through a commercially available AD844, with a supply voltage of ±15 V.

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Section: Electronic Interfacementioning

confidence: 99%

A Second-Generation Voltage-Conveyor-Based Interface for Ultrasonic PVDF Sensors

et al. 2021

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“…Recently, researchers' focus has been concentrated on the dual circuit of the CCII, referred to as a second-generation voltage conveyor (VCII) [22][23][24][25][26][27]. Owing to the lowimpedance voltage output port, VCII is highly suitable for applications requiring output signal in voltage form.…”

Section: Introductionmentioning

confidence: 99%

A New Realization of Electronically Tunable Multiple-Input Single-Voltage Output Second-Order LP/BP Filter Using VCII

et al. 2022

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In this paper, a new realization of electronically tunable voltage output second-order low-pass (LP) and band-pass (BP) filter is presented. The circuit has a multiple-input single-output structure, and LP and BP outputs are provided using the same structure. One electronically variable second-generation voltage conveyor (VCII), whose impedance at the Y port can be electronically varied using a control current (Icon), two capacitors, and one resistor are used. By changing the value of Icon, the impedance value at the Y port can be electronically varied; therefore, the value of ω0 can be tuned. This feature helps to reduce the number of passive components used. Interestingly, the LP and BP outputs are provided at the low-impedance Z port of the VCII, and there is no need for an extra voltage buffer for practical use. The circuit enjoys a simple realization consisting of only 24 MOS transistors. Simulation results using PSpice and 0.18 μm CMOS parameters are provided. The value of ω0 can be varied from 1.2 MHz to 1.7 MHz, while Icon varies from 0 to 50 µA, with a power consumption variation from 244 µW to 515 µW.

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“…Accuracy in time measurements represents a challenging task for a growing number of photo-detection systems in applications such as time-of-flight positron emission tomography (ToF-PET) [ 1 ], γ-ray spectroscopy [ 2 ], time-correlated single photon counting (TCSPC) [ 3 , 4 ], and distance measurements (LiDAR) [ 5 , 6 ]. In this kind of applications, time resolution as low as 100 ps FWHM, or even less, are often required.…”

Section: Introductionmentioning

confidence: 99%

Analytical Study of Front-End Circuits Coupled to Silicon Photomultipliers for Timing Performance Estimation under the Influence of Parasitic Components

Calò

Petrignani

Gioia

et al. 2020

Sensors

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Full exploitation of the intrinsic fast timing capabilities of analog silicon photomultipliers (SiPMs) requires suitable front-end electronics. Even a parasitic inductance of a few nH, associated to the interconnections between the SiPM and the preamplifier, can significantly degrade the steepness of the detector response, thus compromising the timing accuracy. In this work, we propose a simple analytic expression for the single-photon response of a SiPM coupled to the front-end electronics, as a function of the main parameters of the detector and the preamplifier, taking into account the parasitic inductance. The model is useful to evaluate the influence of each parameter of the system on the slope of its response and to guide the designer in the definition of the architecture and the specifications for the front-end electronics. The results provided by the model have been successfully compared with experimental measurements from a front-end circuit with variable configuration based on a bipolar junction transistor (BJT), coupled to a 3 × 3 mm2 SiPM stimulated by a fast-pulsed laser source.

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Electronic Interface for Lidar System and Smart Cities Applications

Cited by 9 publications

References 32 publications

A Second-Generation Voltage-Conveyor-Based Interface for Ultrasonic PVDF Sensors

A Second-Generation Voltage-Conveyor-Based Interface for Ultrasonic PVDF Sensors

A New Realization of Electronically Tunable Multiple-Input Single-Voltage Output Second-Order LP/BP Filter Using VCII

Analytical Study of Front-End Circuits Coupled to Silicon Photomultipliers for Timing Performance Estimation under the Influence of Parasitic Components

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