The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper presents an original concept for interfacing of tensoresistive and capacitive force sensors with applications in modern microelectronics systems. In the first part, the authors show the results and conclusions of a PSPICE simulation for an original patented circuit. The used simulations models were introduced in some circuit components corresponding to the realistic behavior implementation...
Energy management system (EMS) using renewable energy such as sunlight is expected to build a low-carbon society. In this paper, we report the modeling of EMS components using SPICE (simulation program with integrated circuit emphasis) and the estimation of the energy self-sufficiency rate by EMS simulation. We develop the simulation models of photovoltaic (PV) power generation system, storage battery...
Artificial neural network (ANN) computations based on graphics processing units (GPUs) consume high power. Resistive random-access memory (RRAM) has been gaining attention as a promising technology for implementing power-efficient ANNs, replacing GPU. However, nonlinear ${I}$ –${V}$ characteristics of RRAM devices have been limiting its use for ANN implementation. In this letter, we propose a method...
An alternative electrical model for Ion-Sensitive Field-Effect Transistor (ISFET) sensors is presented in this work. The proposed model is worth to be employed in both DC and transient simulations where the behavior of the ISFET sensor coupled to its readout circuit can therefore be investigated. Whereas, previous models found in the literature could only be employed to perform DC simulations. The...
A significant advancement in computational science and the development of various simulation based software have replaced the necessity of testing circuit construction practically. This simulation software can model, design, analyze and synthesize various complex circuitries. Usage of software in basic designs has made the circuit building and testing process more convenient and less expensive. Software...
In this paper, a low-power four-quadrant current multiplier based on the electronically and linearly tunable CMOS transconductors (EOTAs) is presented. The design technique is realized by using only two EOTAs as active circuit elements. The proposed current multiplier can operate for four quadrants with wide input dynamic range. The performances of the proposed current multiplier are tested on PSPICE...
In this paper, a step-up dc-dc converter for mobile device applications is proposed. The converter is operated with 1 MHz high switching frequency. The power stage of converter includes an inductor, an output capacitor, MOS transistors and feedback resistors for control loop. The control stage consists of an error amplifier, comparator, a ramp generator for PWM block, bandgap reference and soft start...
A 2nd-order ΔΣAD modulator architecture is proposed to simplify the operation mode using ring amplifier and SAR quantizer. Proposed modulator architecture can guarantee the reset time for ring amplifier and relax the speed requirement on asynchronous SAR quantizer. The SPICE simulation results demonstrate the feasibility of the proposed 2nd-order modulator in 90nm CMOS technology. Simulated SNDR of...
In this paper, a novel approach for generating multi-double-scroll attractors(MDSA) without changing the original nonlinear functions is presented. By using the multi-level-logic pulse excitation technique in double scroll chaotic systems, MDSA can be generated. Furthermore, the corresponding realization circuits are designed. The Pspice results are in agreement with numerical simulation results,...
This paper compares the transient characteristics of aluminum (Al) and copper (Cu) microstrip line structures. Interconnects are represented using distributed resistance inductance capacitance (RLC) transmission line (TL) model. The equivalent RLC-ladder networks for Al and Cu interconnects are first implemented using VHDL-AMS, and their time-domain simulation responses are compared. For the verification...
Energy management system (EMS) using natural energy such as sunlight is expected to build a low-carbon society. In this paper, we report the modeling of the Si-bifacial photovoltaic (PV) module and the accuracy evaluation of simulation at Hokuriku region where is one of heavy snowing area in Japan. We develop the simulation model of PV power generation using simulation program with integrated circuit...
This paper deals with a technique to reduce glitches in digital-to-analog converters (DACs) using Gray code input. These DACs are designed using MOSFETs, and their operation with glitch reduction was confirmed with SPICE simulation. It has been believed that good topologies of Gray code input DACs do not exist, but we show here their paradox. We also show with simulation that our Gray code input DACs...
Resistor-Inductor-Capacitor (RLC) circuits form the building blocks of most electronic networks today and the evaluation of their behavior is of primary importance. This paper presents MNA-MAT, a MATLAB based analog circuit simulation tools. which uses Modified Nodal Analysis to reduce a SPICE netlist to a system of equations, which yield voltage at and current through specific points in a network...
For the better part of the last 20 years, simulation of semiconductor processes and devices had been the main focus in modeling planar CMOS transistors. The introduction of FinFETs in 2010, along with the increasing use of non-Si materials added much complexity and cost in technology development. With multiple device architectures and material options to consider, TCAD has evolved from focusing primarily...
Three methods of operational amplifier (Op amp) slew rate verification are considered. These methods are illustrated through the example of SPICE macro models of Op amp LMH6642 by Texas Instruments and ОР37 by Analog Devices.
In this study, a new Class A second order log domain all pass filter is designed by using lossy integrators. An all pass filter has unity gain at all frequencies. It also shifts phase at desired value at the given frequency of the input signal. The proposed filter circuit design is based on Kerwin-Huelsman-Newcomb (KHN) block diagram by using lossy integrators. The circuit is synthesized by using...
A 16-bit (5+11) segmented digital-to-analog converter (DAC), based on a voltage mode R-2R topology that is able to derive high resolution and high performance, in terms of INL and DNL, and less area and power consumption comparing with conventional DACs. It is designed and simulated in 65nm CMOS process. A current compensating technique is used to achieve good dynamic performance. The 16 bit R-2R...
A novel design of voltage-mode (VM) all-pass filter (APF) utilizing a single dual-X current conveyor (DXCCII) is proposed. Although many other voltage mode first-order APFs are available in literature, however majority of them cannot allow us to get high input impedance, low output impedance and grounded capacitor properties together. The proposed circuit offers these properties with reduced number...
Spin-transfer torque magnetic tunnel junction (STT-MTJ) broadens the operation of electronic devices by using the electron spin along with its charge. In this work, the static behavior of the STT-MTJ is investigated using a mathematical model and a SPICE subcircuit. The designed subcircuit follows the Brinkman physical model of MTJ conductance, the tunneling magnetoresistance (TMR) bias dependence...
The paper presents a SPICE implementation of a behavioral model of the TiO2 memristor which is equivalent to the Pickett model, but it is easier to simulate with respect to convergence and matrix size. The proposed port equation approximates the Simmons model of tunneling barrier. The state equation has been modified in order to prevent exponential overflows during simulation. A full PSpice netlist...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.