A power-on reset pulse generator for low voltage applications

2002 ◽  
Author(s):  
T.R. Yasuda ◽  
M. Yamamoto ◽  
T. Nishi
Keyword(s):  
Pulse Generator ◽  
Low Voltage ◽  
Reset Pulse

A COMPACT CMOS POWER-ON-RESET PULSE GENERATOR DESIGN WITH LOW-POWER AND WIDE OPERATION RANGE

2010 ◽  
Vol 19 (06) ◽  
pp. 1365-1380 ◽  
Author(s):  
SUAT U. AY
Keyword(s):  
Low Power ◽  
Pulse Generator ◽  
Low Voltage ◽  
Supply Voltage ◽  
Cmos Process ◽  
Detection Capability ◽  
Voltage Range ◽  
Low Voltage Operation ◽  
Reset Pulse ◽  
Generator Design

A compact power-on-reset pulse generator (POR-PG) circuit with a low-power and low-voltage operation capability is presented. Proposed POR-PG was fabricated in 0.5 μm 2P3M CMOS process. It was determined from simulations and measurements that proposed POR-PG works supply voltage levels between 1.8 V and 3.3 V and supply voltage rise times between 100 ns and 1 ms. POR-PG has very small silicon footprint. Layout size of proposed POR-PG circuit was 120 μm × 5 μm in 0.5 μm CMOS process. Comparing with other POR-PG circuits in the literature, proposed design enjoys lowest power consumption (< 6 μW), smallest silicon footprint, widest supply voltage range, and additional features such as brown-out detection capability. These achieved by using a unique cascadable POR delay element that consumes very low-power.

Software Design of Pulse Generator Based on Single-Chip Computer and CPLD

2012 ◽  
Vol 201-202 ◽  
pp. 218-221
Author(s):  
Ji Gao ◽  
Xiao Fang Ma ◽  
Qing Yang Liu
Keyword(s):  
Electrical Discharge ◽  
Pulse Generator ◽  
Low Voltage ◽  
Electrical Discharge Machining ◽  
Pulse Signal ◽  
Pulse Power ◽  
Technical Requirement ◽  
Signal Source ◽  
Single Chip ◽  
Single Chip Computer

The purpose of this article is to study and devise pulse signal source of electrical discharge machining(EDM). The technology of EDM is the necessary key technology in various processing methods. Electrical discharge machining pulse power aims to convert the industrial frequency alternating current into certain frequencies pulse current to supply energy for electrode discharging to removal metal. Pulse power generator, controlled by an embedded MCU, can produce high voltage or low voltage discharge pulse waveform. After the research on characteristics and principles of many pulse powers, a novel, intelligent, high frequency pulse power supply with adjustable amplitude, frequency and duty is developed which has a favorable foreground in engineering application and a great theoretical significance. This paper is to realize the design of EDM pulse signal source based on the method of combining single-chip computer and complex programmable logic devices (CPLD), to satisfy the technical requirement of periodic variable and machining efficiency improving.

Pulse generator for modulation of a low-voltage pockels cell

1972 ◽  
Vol 1 (6) ◽  
pp. 682-683
Author(s):  
G A Aver'yanov ◽  
S V Evdokimov ◽  
E V Nilov ◽  
B M Savichev ◽  
A A Chertkov
Keyword(s):  
Pulse Generator ◽  
Low Voltage ◽  
Pockels Cell

A GAUSSIAN MONOCYCLE PULSE GENERATOR/MODULATOR FOR UWB RADIOS APPLICATIONS

2014 ◽  
Vol 23 (05) ◽  
pp. 1450060 ◽  
Author(s):  
LEONARDO PANTOLI ◽  
VINCENZO STORNELLI
Keyword(s):  
Pulse Generator ◽  
Low Voltage ◽  
Low Complexity ◽  
Cmos Technology ◽  
Ultra Wideband ◽  
Repetition Time ◽  
Simulation Results ◽  
Uwb Applications ◽  
Uwb Radio ◽  
Circuit Power

In this paper, we present, at transistor level, a very low complexity Gaussian monocycle pulse generator/modulator for DPSK low voltage and low power tunable ultra-wideband (UWB) applications. The pulse generator, simulated in a SMIC 0.13 μm CMOS technology, provides a tunable, both in pulse width duration and repetition time, Gaussian monocycle compliant with the sub-GHz ETSI band and suitable to be used in UWB radio applications. The preliminary IC simulation results show a pulse duration from 1 ns up to 20 ns with good pulse symmetry and with the DPSK modulation capability. The circuit power consumption is about 1 mW from a 1.8 V power supply.

Processing of human melanoma cells for correlative TEM, LVSEM, and LM

1991 ◽  
Vol 49 ◽  
pp. 106-107
Author(s):  
Marek Malecki ◽  
J. Victor Small ◽  
James Pawley
Keyword(s):  
Electron Microscopy ◽  
Low Voltage ◽  
Fluorescent Microscopy ◽  
Blood Stream ◽  
Surface Topology ◽  
Integrin Receptors ◽  
Transmission Electron ◽  
Develop Technology ◽  
Voltage Scanning ◽  
Mechanisms Of Adhesion

The relative roles of adhesion and locomotion in malignancy have yet to be clearly established. In a tumor, subpopulations of cells may be recognized according to their capacity to invade neighbouring tissue,or to enter the blood stream and metastasize. The mechanisms of adhesion and locomotion are themselves tightly linked to the cytoskeletal apparatus and cell surface topology, including expression of integrin receptors. In our studies on melanomas with Fluorescent Microscopy (FM) and Cell Sorter(FACS), we noticed that cells in cultures derived from metastases had more numerous actin bundles, then cells from primary foci. Following this track, we attempted to develop technology allowing to compare ultrastructure of these cells using correlative Transmission Electron Microscopy(TEM) and Low Voltage Scanning Electron Microscopy(LVSEM).

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