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Complementary metal oxide semiconductor (CMOS) is widely used in high reliability field, and is susceptible to single event latch-up (SEL) effect. Based on Technology Computer Aided Design (TCAD) simulation software, a typical CMOS structure is selected to simulate SEL effect and study the simulation results under different conditions. The relation between the simulation condition and the simulation...
This paper illustrates the modelling and simulation (M&S) based engineering approach developed in the framework of ITEA2 project MODRIO to the case of a Backup Power Supply. This system integrates physical and human aspects with computer-based controls, and is therefore a so-called socio-cyber-physical systems (SCPS). This system is relatively simple in terms of physics but is a realistic example...
This paper describes macromodeling of operational amplifiers for overdrive circuit design. Macromodels have been applied to operational amplifier simulations with good convergence. Also, macromodels allow the accurate simulation with not only double-power supply but also single-power supply. In this study, a macromodel has been applied to an overdrive circuit for sound effect design. Output waveform...
To study analysis method of performance degradation during long term operation based on function simulation, accelerated degradation test was carried out on the power supply module directly, and the test data was used for reliability analysis. As the same time, accelerated degradation test was carried out on the key components in power supply circuit. The test data was injected into the functional...
Energy storage device is widely used in vehicle and ship, as the only or the backup DC power supply. For multiple energy storage devices operating in parallel, it's necessary to adopt current-sharing control to improve the safety and the reliability of these devices. There are many current-sharing algorithms, such as the maximum current current-sharing method, the average current current-sharing method,...
This paper describes a macromodeling of operational amplifiers for sound effect circuit design. The modular macromodel of operational amplifiers has been investigated for distortion circuits. The macromodel includes the voltage limiting stage with accurate power supply voltages. The macromodel has been implemented in a circuit simulator and the output voltages are compared with experimental data for...
This paper presents a queue simulation of a remote laboratory based on the VISIR Open Lab Platform designed at Blekinge Institute of Technology. A model of this VISIR laboratory and statistical distributions of how users interact with the system based on real log files are presented. The system is then simulated in order to determine how many concurrent students that can be allowed to use the laboratory...
The principle of built-in test false alarm simulation (BFAS) is analyzed, with the definition of BFAS in this paper. Related false alarm inducing factors simulated by electronic design automation (EDA) techniques are determined, including load variations, power supply disturbances and electromagnetic interferences. The concept of false alarm simulation profile is proposed. The types and simulation...
A simulation method for switching controllers is presented in this paper. The analog and digital circuits are absolutely separated in this method to avoid the limitation existed in the modern simulation software. This simulation method is much simpler than the conventional methods, with accurate simulated results and rapid computing speed. It has gotten proof in the switching controllers (which are...
In this paper, a new peak hold circuit which detects the top value and the bottom value of the power supply noise of a VLSI circuit is proposed. We can make a noise map by distributing the circuit over the chip and find hot-spots in which large power supply noise occurs. This circuit needs no extra clean power supply or external clock signal. Also, low power consumption can be expected because it...
This paper proposes a Cascaded H-bridge Multilevel Inverter (CHMI) based pulsed power supply for the sterilization of liquid foods using Pulsed Electric Field (PEF). The utilization of a CHMI allows the system to reach high voltage without the use of transformers while fulfilling the pulse requirements for effective liquid food sterilization. By using the CHMI topology, no extra clamping diodes or...
This paper presents an intensive discussion on conducted electromagnetic interference (EMI) emissions from an inverter-driven air conditioner. The common-mode voltages produced by the pulse-width-modulation (PWM) inverter may cause a high-frequency leakage current. The use of a spectrum analyzer and a line-impedance stabilization network (LISN) makes it possible to refer the leakage current in the...
In this paper, the adaptive slope compensation circuit operating in low power consumption with a less component counts design is proposed. The sub-harmonic oscillation is a well-known problem in the Current-Mode DC-DC converters. Proposed novel adaptive slope compensation circuit solved the sub-harmonic oscillation problem. The circuit adjusts the slope compensation ramp by automatic operation according...
A new type thermal-shutdown circuit has been designed in UMC 0.6 um BiCMOS process. A feedback is used to solve the problem of thermal-oscillation and a shunt regulator circuit is used to solve the problem of the limit of the technology model. This thermal-shutdown circuit has simple structure, process insensitive and low power dissipation. It can be widely used for modularize in power management...
The implementation of safety critical applications in internal vehicles requires a reliable wireline communication system to ensure enough bus line signal integrity. The design verification of in-vehicle electronic embedded system during the early stages of the system design is required and can be effectively achieved through behavioral simulations. The main difficulty is on modelling the mixed-mode...
For the current value of fault arc can not make protection devices action, the fault arc can not be found easily and cut off timely when the arc is come into being in power supply line. Therefore, it is very necessary to research the reliable and effective method for detecting fault arc. Through the simulation experiments to the fault arc, found an important characteristic of fault arc, that is the...
Simultaneous switching noise (SSN) is an important issue for the design and test and actual ICs. In particular, SSN that originates from the internal logic circuitry becomes a serious problem as the speed and density of the internal circuit increase. In this paper, an on-chip monitor is proposed to detect potential logic errors in digital circuits due to the presence of SSN. This monitor checks the...
The implementation of complex functionality in low-power nano-CMOS technologies leads to enhance susceptibility to parametric disturbances (environmental, and operation-dependent). The purpose of this paper is to present recent improvements on a methodology to exploit power-supply voltage and temperature variations in order to produce fault-tolerant structural solutions. First, the proposed methodology...
An on-chip buck converter with 3D chip stacking is proposed and the operation is experimentally verified. The manufactured converter achieves a maximum power efficiency of 62% for an output current of 70mA with a switching frequency of 200MHz and a 2x2mm on-chip LC output filter in 0.35mum CMOS. The use of glass epoxy interposer to increase the maximum power efficiency up to 71.3%, and the power efficiency...
In this work, the bulk-gate controlled circuit to improve the power supply ripple ratio (PSRR) of a Low Dropout Regulator (LDO) which deteriorates due to lowering power consumption is proposed. Designing with 0.25 mum CMOS process, the simulation results by HSPICE shown that the proposed circuit provides a high performance of PSRR even though 1/10 of the power consumption is reduced compare to the...
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