A Simple Circuit to Visualize Space Vectors by an Oscilloscope

2020 ◽  
Author(s):  
Predrag Pejovic
Keyword(s):  
Simple Circuit ◽  
Space Vectors

Metal Bridge Defects Localization by a Tiny Leakage between One of Bridged Signals and VDD (GND)

2014 ◽  
Author(s):  
Chunlei Wu ◽  
Suying Yao
Keyword(s):  
Circuit Model ◽  
Functional Modules ◽  
Semiconductor Technology ◽  
Simple Circuit ◽  
Lock In

Abstract As semiconductor technology continues to advance to smaller dimensions and more complex circuit designs, it is becoming more challenging to locate the resistive short directly between two metal lines (signals) due to a metal bridge defect. Especially these two metal lines are very long and relevant to many functional modules. After studying the failed circuit model, we found there should be a tiny leakage between one of the bridged signals and one of common power signals (such as VDD and GND) on a failed IC compared with the reference one, if there is a metal bridge defect between these two bridged signals. The tiny leakage between one of the bridged signals and one of power signals is an indirect leakage that is a mapping of the direct resistive short between these two bridged signals. The metal bridge defect could be pinpointed with the tiny leakage between one of the bridged signals and one of power signals by Lock-in IR-OBIRCH. It is an easier and faster way to locate the metal bridge defects. In this paper, the basic and simple circuit model with a metal bridge defect will be presented and two cases will be studied to demonstrate how to localize a metal bridge defect by the tiny leakage between one of the bridged signals and one of power signals.

Simple circuit for pacing hearts of experimental animals

1992 ◽  
Vol 262 (6) ◽  
pp. H1939-H1940 ◽  
Author(s):  
G. L. Freeman ◽  
J. T. Colston
Keyword(s):  
Integrated Circuit ◽  
Simple Circuit ◽  
Cardiovascular Research ◽  
Experimental Animals ◽  
Wide Range ◽  
Astable Multivibrator

In this paper we describe a simple pacing circuit which can be used to drive the heart over a wide range of rates. The circuit is an astable multivibrator, based on an LM555 integrated circuit. It is powered by a 9-V battery and is small enough for use in rabbits. The circuit is easily constructed and inexpensive, making it attractive for numerous applications in cardiovascular research.

A Simple Circuit for a Capacitor Dilatometer

1970 ◽  
Vol 41 (7) ◽  
pp. 1103-1103
Author(s):  
V. A. Danilychev
Keyword(s):  
Simple Circuit

Simple circuit for computing (x2 + y2)[fraction one-half]

1974 ◽  
Vol 10 (22) ◽  
pp. 455
Author(s):  
J.S.C. Tan
Keyword(s):  
Simple Circuit

Research of Multi-Channel Hygrothermoscope Acquiring System

2012 ◽  
Vol 214 ◽  
pp. 177-182
Author(s):  
Xiao Bing Wu
Keyword(s):  
Air Conditioning ◽  
High Reliability ◽  
Temperature Data ◽  
Simple Circuit ◽  
Control Room ◽  
Host Machine ◽  
Humidity Transducer ◽  
And Control ◽  
Humidity Monitoring ◽  
Conditioning Control

The paper introduces a multipoint remote Hygrothermoscope monitoring system based on the MAX485 bus. The system of remote multipoint temperature control is composed of the host machine and slave machine; the host system for display and control, the slave system is responsible for collecting temperature data. Between master machine and slave machine communicate through the RS-485 bus, can realize the distant control room of the scene monitoring. The STC89C54 MCU is used as the controller and DHT11 is used as the temperate and humidity transducer. The hardware and software of the system are outlined. The system has realized multiple measuring points, easy expansion, and high reliability, anti-interference. The whole system has the advantages of simple circuit, reliable, and can be used for measuring temperature, humidity, temperature of building air conditioning control temperature and humidity monitoring and other fields.

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