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On-chip power supply noise has become a bottleneck in 3D ICs as scaling of the supply network impedance has not been kept up with increasing device densities and operating currents with each technology node due to limited wire resources. In this paper we proposed an efficient and accurate model to estimate peak-to-peak switching noise, caused by simultaneous switching of logic loads along a vertical...
A single-chip microcomputer-based test device of flash relay is presented in this paper, whose circuit and testing method are also introduced. The test device can not only detect parameters of relays in dynamic process, but also has additional functions such as durability detection, failure indication and so on. Finally, a simulated load circuit aiming at improving the test environment is designed,...
A joint power system state and topology estimator based on a combined Weighted Least Squares (WLS) and Weighted Least Absolute Value (WLAV) strategy is proposed. The resulting coestimation algorithm is devised to simultaneously provide estimates to the analog power system variables and validate the current topology of the electric network. This is accomplished by formulating state & topology coestimation...
Performance of the low-voltage and power-efficient analog-to-digital (A/D) converters, like cyclic and pipeline topologies, can be significantly enhanced by using advanced analog cores. This paper describes a careful switched capacitor (SC) architecture that can be used as a simple low-voltage implementation of the flip-around sample-and-hold (S/H) circuit. The S/H has been simulated in a 0.13 ??m...
This paper reviews an analog multiplier and divider using only single multiple-output current controlled current through transconductance amplifier (MO-CCCTTA). The proposed circuit can function as a four-quadrant multiplier and two quadrant divider without changing original circuit topology. A constant value of multiplication and division can be controlled via an input bias current and temperature-insensitive...
Switched mode power supplies (SMPS) have become an indispensable part of modem electronic systems. In this paper, a generalized MATLAB/SIMULINK modeling techniques is presented. The proposed techniques have been successfully integrated into SMPS design course at Lunghua University, Taiwan. The main objective of the course is to teach final year undergraduate students and first year Master's students...
A novel pixel readout circuit using a switched-capacitor integrator mode background suppression technique is proposed for long wavelength infrared (LWIR) focal plane arrays. It has ultra-low background suppression non-uniformity (BSNU) and no additional shot noise when suppressing the background current for improving signal-to-noise ratio and dynamic range. The BSNU can be as low as 529 ppm for a...
This paper describes a digital proportional-integral-derivative (PID) controller technique applied to the DC-DC buck converter. The converter is modelled using a state space averaging technique. Due to the non-linear of the power converter, the PID controller is designed to simplify the compensation of the DC-DC converter. The control algorithm is implemented in digital signal processor (DSP) TMS320F2812...
Analysis of transient behavior is important for class E amplifier because high peak switch voltage may be imposed to the transistor in the transient response. However, transient behavior of class E amplifier due to load variation was not analyzed yet. In this paper, transient behavior of a class E amplifier due to load variation is simulated with PSPICE. As a result, it is found that a high transient...
A novel circuital model for a shunt connected RF MEMS coplanar switch, based on a fully analytical approach, is presented. The numerical simulations performed with the proposed new model are in good agreement with experimental measurements.
A new dual-base triggered SCR is presented. By adjusting the device sizings in the trigger circuit, the designer sets the trigger voltage to an application appropriate-value. The turn on time is comparable to that of DTSCRs fabricated in the same technology node, but the leakage is orders of magnitude lower.
This paper presents a novel model for average current control that can be applied to the buck-cascaded buck-boost converter (BuCBB) with two independently controlled switches in universal input power factor correction (PFC) circuits. The proposed BuCBB PFC model consists an averaged BuCBB topology with all the switching elements replaced by dependent sources and an average current control scheme with...
The small signal model of a smart power IC is one of the most important elements for a power system design. This paper presents a measurement-based small signal modeling method for the smart power IC. This method is referred to as sampling the duty cycle output and the control signal input of the smart power IC with the ICpsilas switching frequency. The duty ratio and the control signal are converted...
The converting circuit requires high performance such as the output current with high accuracy, low ripple (les0.2 %) and full-range regulated in power accumulator battery testing system for electric vehicles (EV). In this paper, a three-phase current rectifier (CSR) is taken as the main circuit. Double-loop control strategy which is base on the feedback of grid current and the output current is used,...
In this paper, an analysis is given to the topology of cascaded seven-level inverter. Then its simulation model is set up. On the other hand, several carrier control strategies are discussed, modeled and applied for the control of this multilevel inverter respectively, including phase disposition, phase opposition disposition and alternative phase opposition disposition. Then the switching control...
IGBT is one of the key components of motor driving system for electric vehicles, and its reliability directly affects the reliability of the electric vehicles. The reliability of the IGBT is affected by the loss and the junction temperature in working condition. To predict the IGBTpsilas loss and thermal response, especially in the case of adverse dynamic conditions, the dynamic loss model and the...
This paper presents the module of pulse power circuit based on RSD in SABER-Simulink co-simulation environment (SSCSE). In SSCSE, physical model of RSD is built in Simulink, pulse power circuit based on RSD model and magnetic switch model are built in SABER, and simulation data is exchanged through SABER Cosim interface. Compute formula of magnetic switch saturation time is derived. Single pulse and...
This paper presents a novel DC link voltage feedforward control to improve the electric drive system tolerance capability to the dc link voltage sag. A uniform mathematic model, comprising the battery packs, voltage source inverter (VSI), permanent magnet synchronous motor (PMSM) is built up in the d-q rotating coordinates rather in three-phase stationary coordinates. In order to study the influence...
This paper presents a MATLAB/Simulink simulation model for a space vector modulated matrix converter. Indirect and direct space vector modulation methods are implemented using an almost common structure, following a shared approach. Different switching strategies are simulated and analyzed for both methods. In addition, a set of rules are proposed for direct space vector modulation switching strategies...
Nowadays, characteristics analysis of doubly salient electro-magnet machine is mostly about starter or generator separately, while transient characteristics of switching from starter to generator are less studied. Process of switching from starter to generator is an important part of the whole starter/generator system. In this paper, integral MATLAB model of doubly salient electro-magnet starter/generator...
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