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DS12C887_ Real Time Clock
Tham khảo tài liệu 'ds12c887_ real time clock', kỹ thuật - công nghệ, tự động hoá phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả
8/29/2018 4:59:32 PM +00:00
Vài điểm về vi điều khiển
Có thể nói, hiện nay vi điều khiển đã rất phổ biến ở Việt Nam, và được ứng dụng rất nhiều. Những sinh viên ngành Điện, Điện Tử, Cơ Điện Tử, Tin Học, Viễn Thông... hầu như ai cũng biết cách để làm việc với vi điều khiển. Tuy nhiên, để viết một bài viết tổng quát về vi điều khiển và việc lập trình cho vi điều khiển, quả thật là quá khó khăn đối với tôi.
8/29/2018 4:59:32 PM +00:00
Vi điều khiển PIC
PIC16F84 là dòng PIC phổ biến nhất được khuyến khích cho những người mới học. Tuy nhiên, gần đây, dòng PIC16F628A ra đời, giá thấp hơn, nhiều chức năng hơn, và thực sự là dòng PIC Flash. Nó được hầu hết các chuyên gia khuyên dùng để bắt đầu thực hành về PIC. Hầu hết các tutorial mới đều bắt đầu chọn PIC16F628A. Tuy nhiên, hiện nay dòng PIC16F88 mới ra đời, cũng như sự ra đời của PIC16F628A, PIC16F88 có nhiều chức năng hơn PIC16F628A, giá cả không chênh lệch là bao (khoảng 5000 đến 10000 đồng tại Việt Nam), và nó hỗ trợ...
8/29/2018 4:59:32 PM +00:00
DUTY CYCLE
Duty cycle (or duty factor) is a measure of the fraction of the time a radar is transmitting. It is important because it relates to peak and average power in the determination of total energy output.
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Engineering - National Instruments - Fundamentals of Digital Electronics
Fundamentals of Digital Electronics
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Electronics - Digital Control of Switching Power Supply
Digital Control of Switching Power Supply - Power Factor Correction Stage
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Electronics - Theory and Design of Electrical and Electronic Circuits
All the designs that become are not for arming them and that works in their beginning, but to only have an approximated idea of the components to use. To remember here one of the laws of Murphy: If you make something and works, it is that it has omitted something by stop .The calculations have so much the heuristic form (test and error) like algoritmic (equations)and, therefore, they will be only contingent; that is to say, that one must correct them until reaching the finished result.
8/29/2018 4:59:31 PM +00:00
Electronics and Circuit Analysis using MATLAB.
In this chapter, MATLAB will be used to solve problems involving metaloxide semiconductor field effect and bipolar junction transistors.Library of Congress Cataloging-in-Publication Data Attia, John Okyere. Electronics and circuit analysis using MATLAB / John Okyere Attia p. cm. Includes bibliographical references and index. ISBN 0-8493-1176-4 (alk. paper) 1. Electronics--Data...
8/29/2018 4:59:31 PM +00:00
EMISSION CONTROL (EMCON)
When EMCON is imposed, RF emissions must not exceed -110 dBm/meter2 at one nautical mile. It is best if systems meet EMCON when in either the Standby or Receive mode versus just the Standby mode (or OFF).
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EMP / AIRCRAFT DIMENSIONS
An aircraft flying in the vicinity of an electromagnetic pulse (EMP) acts like a receiving antenna and picks up EMP radiation in relation to size like a dipole (or half-wavelength dipole).
8/29/2018 4:59:31 PM +00:00
Fuel Cell Handbook
Fuel cells are an important technology for a potentially wide variety of applications including micropower, auxiliary power, transportation power, stationary power for buildings and other distributed generation applications, and central power. These applications will be in a large number of industries worldwide.
8/29/2018 4:59:31 PM +00:00
ELECTRO-OPTICS
There are many electro-optical (EO) electronic warfare (EW) systems which are analogous to radio frequency (RF) EW systems. These EO EW systems operate in the optical portion of the electromagnetic spectrum. Electro-optics (EO), as the name implies, is a combination of electronics and optics.
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FIELD INTENSITY and POWER DENSITY
Sometimes it is necessary to know the actual field intensity or power density at a given distance from a transmitter instead of the signal strength received by an antenna.
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THE INSTRUCTION SET ARCHITECTURE LEVEL
A virtual instruction set architecture (V-ISA) implemented via a processor-specific software translation layer can provide great flexibility to processor designers. Recent examples such as Crusoe and DAISY, however, have used existing hardware instruction sets as virtual ISAs, which complicates translation and optimization. In fact, there has been little research on specific designs for a virtual ISA for processors. This paper proposes a novel virtual ISA (LLVA) and a translation strategy for implementing it on arbitrary hardware. The instruction set is typed, uses an infinite virtual register set in Static Single Assignment form, and provides explicit control-flow and dataflow information, and...
8/29/2018 4:59:31 PM +00:00
FREE FALL / AIRCRAFT DRAG
The purpose of this section is to get an awareness of the distance traveled by a flare or other object such as a bomb, which is jettisoned or dropped by an aircraft.
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FREQUENCY / PHASE EFFECTS OF ANTENNAS
The radiation patterns of the antennas presented in the previous section are for antenna geometries most commonly used.
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FREQUENCY SPECTRUM
Figure 1, which follows, depicts the electromagnetic radiation spectrum and some of the commonly used or known areas.
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Fuzzy Logic and NeuroFuzzy Applications in Industrial Automation
In industrial automation, fuzzy logic technologies enable the efficient and transparent implementation of human control expertise.
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THE GLOSSARY
ACCEPTABLE DEGRADATION - The allowable reduction in system performance. For a fire control radar, the acceptable degradation is usually expressed as a reduction in range; for example, the maximum lock-on range might be degraded by 25 percent without loss of essential defense capability.
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