A survey and classification of architectures is presented in this paper for delay line ADC and its delay cells targeting digital control of DC-DC converters. Previously presented designs are identified as particular cases of the proposed classification. In order to optimize occupied area and power consumption,...

Practicality plays key roles in communication circuits course education. This paper addressed the development of a NI ELVIS II+ based experiment platform. This platform incorporated a large-area breadboard, a function generator, a portable power supply and an easy-to-use software interface. Students...

There is an important significance of AC/DC comparator with high precision for the precision measurement in electric power industry. An AC/DC comparator based on the non integer period Sampling and rapid data refactoring is designed. The AC/DC comparator consists of the input buffer A/D change DC reference...

This paper presents the analytical calculation of the eigenenergies for a nanoscale symmetric double triangular quantum well (DTQW) in double gate InAlAs/InGaAs HEMT. The symmetric double triangular quantum wells formed by two similar heterostructures are separated by a barrier in the InGaAs channel....

In order to reduce the standby power and increase the efficiency of the SMPS (Switch-Mode Power Supply), a multi-mode control strategy is presented and implemented in this paper. Three different modes are applied in the strategy and the optimization is achieved according to different load. The SMPS can...

In this paper, we present a remote iris recognition system using two cooperative cameras, one of which with wide-angle perspective and the other with long focal-length and high resolution; the two cameras are fixed together on a resolving stage called Pan and Tilt. When the wide-angle camera finds a...

Research reactors are important neutron sources for research and radioisotope production purposes. The common problem of these facilities is their obsolete instrumentation and control (I&C) systems. The spare parts are not still available as their production is discontinued; therefore, the maintenance...

Based on the thermal breakdown behavior of grounded-gated n-channel metal-oxide-semiconductor (GGNMOS) under Electrostatic Discharge(ESD) conditions, the electrothermal models are built and optimized by modeling thermal breakdown temperature, heat source and temperature-dependent parameters, which are...

It was proposed that the method of nodes selection for analog circuits soft fault diagnosis, which is using sensitivity vector as the fault signature. The problem of fault diagnosis was formulated into the one of finding the solution for the smallest 2-norm of the diagnosis equations. Considering that...

The scaling of MOSFET causes various process variations and defects which result in increasing performance loss of nanoscale integrated circuits. Major sources of process variations and defects in nanometer CMOS technology are studied. Then, their impact on MOSFET characteristics and on VCO circuit performances...

Modular multiplication is a basic operation in public key cryptosystems, like RSA and elliptic curve cryptography (ECC). There are many algorithms to speed up its calculation. Among them, Montgomery algorithm is the most efficient method for avoiding expensive divisions. Recently, due to the increasing...

A theoretical research on Linear Amplification with Nonlinear Components (LINC) is described with an improved theory to COX’s proposed in this article. Input RF signal is separated into envelope component and constant envelope angle-modulated component in the circuit. Two branches of constant envelope...

An intelligent guidance device based on ultrasonic sensor array is researched and developed according to the blind demand for facilitate walking. Six pairs of ultrasonic sensors are divided into the upper and the lower groups to detect obstacles. Multi-source information fusion and multi-sensor information...

The positioning technology of wireless sensor is the premise in the application of wireless sensor network and has high application prospect and research value. The positioning technology based on received signal strength (RSSI) and the working principle were studied in the paper. The error and compensation...