PIC單片機(jī)書籍
PIC Microcontrollers, Second Edition: An Introduction to microelectronics
By Martin P. Bates
Publisher: Newnes
Number Of Pages: 390
Publication Date: 2004-07-26
ISBN-10 / ASIN: 0750662670
ISBN-13 / EAN: 9780750662673
為了有效地提升鉛酸蓄電池的使用壽命，同時實現(xiàn)對充電過程的監(jiān)控，設(shè)計出一種用單片機(jī)控制的36 V鉛酸蓄電池充電電源。本電路采用反激式拓?fù)洌B續(xù)電流工作模式，電源管理IC設(shè)計在電源的副邊，由ELAN公司的EM78P258N單片機(jī)模擬，是用可編程器件模擬電源管理IC，實現(xiàn)智能電源低成本化的一次成功嘗試，通過對單片機(jī)的軟件設(shè)計實現(xiàn)了充電電源的狀態(tài)顯示、充電時間控制、報警、過溫保護(hù)、過壓保護(hù)、過流保護(hù)等功能。本充電器真正的實現(xiàn)了鉛酸蓄電池的三段式充電過程，其最高輸出功率可達(dá)90 W，效率約85%，成本不到20元，具有很高的市場競爭力。
Abstract: In order to extend the life of lead-acid battery efficiently and supervise the charging process meanwhile， a 36V lead-acid battery charge powe supply controlled by microcontroller is designed. The charger is flyback switching power supply and works in CCM mode. A EM78P258N microcontroller made by ELAN microelectronics corporation is used as power management IC which is designed at the secondary circuit. The project is a successful attempt to low-cost intelligent power used microcontroller simulating power management IC. The charger also has the functions of the status reveal， charge time control， alarming， thermal protect， current limit and overvoltage protect by the software design. The circuit actually implements the three-step charge process， whose power is up to 90W and whose efficiency can get 85%. The net cost of this charger is less than 20 RMB， so that the charger is of powerful market competitiveness.
With the advances in the semiconductor and communication industries, it has become increasingly
important for electrical engineers to develop a good understanding of microelectronics.
This book addresses the need for a text that teaches microelectronics from a modern and intuitive
perspective. Guided by my industrial, research, and academic experience, I have chosen
the topics, the order, and the depth and breadth so as to efficiently impart analysis and design
principles that the students will find useful as they enter the industry or graduate school.
Electrostatic discharge (ESD) phenomena have been known to mankind since Thales of
Miletus in approximately 600 B.C.E. noticed the attraction of strands of hay to amber.
Two thousand six hundred years have passed and the quest to obtain a better under-
standing of electrostatics and ESD phenomenon continues. Today, the manufacturing
of microelectronics has continued the interest in the field of electrostatic phenomenon
spanning factory issues, tooling, materials, and the microelectronic industry
This reference design describes the design of a 3-phase AC induction
vector control drive with position encoder coupled to the motor shaft. It
is based on Motorola’s DSP56F805 dedicated motor control device.
AC induction motors, which contain a cage, are very popular in variable
speed drives. They are simple, rugged, inexpensive and available at all
power ratings. Progress in the field of power electronics and
microelectronics enables the application of induction motors for
high-performance drives, where traditionally only DC motors were
applied. Thanks to sophisticated control methods, AC induction drives
offer the same control capabilities as high performance four-quadrant
DC drives.
