An improved definition of target impedance is proposed in this paper, which derived from the time-domain waveforms IC transient current and allowable voltage fluctuation. The removes unnecessary constraint original allows for more cost-effective power distribution network (PDN) designs consumer electronic products. A measurement procedure to obtain also developed PDN utilizing traces. have been validated using practical functioning designs.

The paper presents a continuous breathing pattern monitoring system using piezoelectric transducer and low power CMOS integrated circuit. is compatible for being used as wearable device around the chest belt. sensor ferroelectric polymer which biocompatible material. rest of circuit designed standard 130 nm process. smaller footprint, wireless interface, low-cost inconvenience-free design features proposed makes it an attractive alternative to conventional methods monitoring.

Radio frequency interference can degrade the receiving sensitivity of antennas. The is usually caused by certain coupling structures, such as layouts without adequate grounding for radio signal return path. Those structures be modeled a set equivalent dipole moments when they are electrically small. Herein, moment model-based framework applied to practical cellphone design case devise an engineering solution. incorporates radiation sources and model based on reciprocity theorem....

A power distribution network (PDN) is essential in electronic systems to provide reliable for load devices. With faster transient current and lower voltage tolerance margin microprocessors mobile platforms, it crucial optimize the printed circuit board (PCB) design satisfy strict target impedance. Conventional modeling methods become impractical platforms due characteristics of high-density interconnect PCB limited layout space. To overcome these issues, a pattern-based analytical method PDN...

Genetic algorithms (GAs) use many hyperparameters, and tuning these parameters can determine the optimization performance. A GA with an augmented initial population was proposed for decap but it had convergence issues by getting stuck in local minimum. This work uses a reinforcement learning (RL) approach to adaptively tune hyperparameters of during its operation. With this approach, agent tries change so that does not get The method combining RL Augmented showed better performance terms...

Feature Select Validation (FSV) is a widely used validation method for data comparison. FSV provides quantitative standard to describe the similarity between two sets of data. In this paper, application technique extended optimization. The raw obtained from simulations or measurements are often non-ideal further processing. Several techniques, such as perturbation, can be improve quality in certain aspects. However, after modifications new could very different original one. Using an...

A hybrid approach to solve via impedance and model transitions is presented in the paper. The method a combination of via-plane capacitance extraction matrices calculation parallel plane pair. new formulation integral equation for axially symmetric geometry used extraction. validated with other results.

Power distribution network (PDN) is essential in electronic systems to provide reliable power for load devices. Thus, modeling of PDNs printed circuit boards and packages has been extensively studied the past few decades. However, with higher integration levels operation bandwidths modern voltage regulator module (VRM), there lacks an accurate model transient responses based on widely used current-mode control topology. In this work, a topology-based behavior model, including both stage...

This paper presents a monolithic pH measurement system with power conditioning for supply derived from harvested energy. The proposed includes low-power highly linear readout circuits wide values (0-14) and unit based on low dropout (LDO) regulator. circuit provides squarewave output the frequency being corresponding to input values. To achieve that, simple operational transconductance amplifier is employed linearly convert sensor voltage current. overcome process variations, calibration...

The parasitic inductance of a capacitor depends on its physical structure. Due to the geometry 3-terminal capacitors, they boast lower compared 2-terminal capacitors same and possibly smaller package sizes. While single may be lower, using multiple result in similar performance. In this work, (0201, nominal 2.2 uF) (0402, 4.3 is extracted through measurements. From our de-embedding method characterized only about ~20 pH higher than 3terminal capacitor. On power net real product, type as were...

In this paper, the current in end ring of a submersible motor is studied by finite-element method. Since resistance and electromagnetic force are related to its current, it essential study distributed characteristics detail. Based on Maxwell's equations equivalent circuits, final density calculated. Then, end-ring distribution compared same cross section, as well those different sections along circumferential direction. Finally, effects radical width axial investigated.

Accurate end-to-end power integrity simulations require models that include every component in the distribution network, including voltage regulator modules (VRMs) and on-die capacitors. However, VRMs has been challenging, because electronic simulation tools are not compatible with typical tools, encrypted VRM for SPICE typically sufficiently accurate to capture non-linear behaviors under various load conditions. Herein, a SPICE-compatible behavior modeling method is proposed, which applied...

In this paper, we describe a systematic approach to optimize and analyze the equivalent characteristic impedance of practical via structures. The procedure consists (a) optimizing structures for matching using Genetic algorithm, (b) numerically characterize, by stochastic collocation method, sensitivity manufacturing uncertainties in various geometrical parameters structure. Such naturally leads rigorous methodology EM design/control presence multiple sources uncertainty.

In a typical wireless transmission of medical data from implantable sensors devices Medical Implant Communication System (MICS) protocol with low-power, short-range (~2m), high-data-rate, 401-406 MHz communication network scheme is employed. This paper presents digital voltage-controlled oscillator (DVCO) featuring low-power consumption, wide tuning range, and low phase noise suitable for use in biomedical employing MICS protocol. The circuit realized 0.13-μm standard CMOS process consumes...