Urgently looking for an analog circuits study guide, 2000 words or more! Thank you!

In the early days of reform and opening up, teachers in institutions of higher learning to focus on the direction of teaching and learning, the conclusion is basically cancel the teaching of analog circuits, only in the form of retention, because of the price of foreign integrated circuits, performance is the domestic tradition of discrete components to build circuits can not be replaced; from then on, the teaching, vocational education, home appliance repair are integrated circuits as the center; after that, it is the development of the information age, to the Computer technology, network technology as the top priority, the core of the development of science and technology. On the road, non-excavation technology has been popularized in the city to lay underground pipelines have been widely used directional drilling technology, the country has been able to copy this drill rod can turn the underground drilling rig, imported a set of 1 million yuan, 400,000 yuan a set of domestic; and guided by ground-penetrating radar must be imported, the general performance of a 300,000 yuan it; nowadays, city construction, gas pipeline construction, underground cable construction, Water supply system construction are indispensable to this radar; housing renovation, property management needs a smaller ground-penetrating radar, also want 180,000 yuan a. The speed radar of the traffic police also need to be imported, the general performance of a 30 million yuan. The speed radar of the traffic police is similar. Gas company to detect the road under the thin pipeline gas leakage of high sensitivity detection instrument is produced in Germany, a million yuan, is also an analog instrument.

Looking at the high-end instruments for deep space exploration, bioengineering, medical instruments, analytical instruments, high-energy physics research, biological origins, archaeological research, and identification of physical evidence in criminal investigations, they are all imported instruments, all based on analog technology. For example, the Hubble telescope, black hole exploration, gravitational wave detection, satellite photos are the application of the data they obtain. Inertial guidance systems, cell phones, base stations, computers, televisions, video cameras, scanners, cameras, and other information equipment, input and output are mostly analog processes, but only in the middle of the digital process. Now it is all about integrating analog and digital hardware parts and even software. There is no basic design capabilities and semiconductor process equipment, can only be used in a system integration approach, the superior force and the greatest ability to algorithms, the use of DSP, will be on the market to a large platter of goods, it must be the use of other people's core hardware and software, on the back door is wide open, the introduction of security risks. Therefore, in theory is half empty hanging, in the application of the final consumer, always in the downstream in the industry chain.

Einstein's theory of relativity is based on the then advanced hardware to obtain a large number of physical, astronomical experiments, observation of basic data; the basic components of the circuit do not have a true understanding of the corresponding professional college students and graduate students abound in this premise, relying on the circuit simulation software can not do a decent basic line.

So students should first use the analog pointer multimeter, the establishment of perceptual understanding and imagination, the country is good with abstract thinking, because the depth of the correct intuition to cultivate a long period of time, costly, can cross the threshold of the scarce; compared to play with math, English, memorize the formulas, solve the exercises, citing literature is too easy.

With the prevalence of teaching methods, syllabi, textbooks, and experimental setups in China over the past few decades, coupled with innovative engineering, there is little likelihood that even Peking University and Tsinghua University will be able to produce characters who can design circuits in a pure manner. At least ten or more basic circuits for the complete design, debugging; and then more than ten applications of the combination of the design of the system design, the overall co-tuning, is the most basic education.

Can build satellites, launch vehicles, nuclear weapons in many countries, but on behalf of its industrial base and the overall innovation capacity of the mark is the basic materials, precision machining equipment, precision instruments, how many of the country's own manufacturing? How is the level of basic industry in the international arena? I have worked in the military industrial enterprises, know that the key technologies of the defense industry in various countries are the strength of the country to buy and sell, the result is the mass production of other people's industrial products, you use a higher cost of production, but also can not reach the performance and reliability of others. Industrial infrastructure is not solid, modern industrial imperfect, national quality ** conditions, to keep pace with the world's development, the economic form of the urgent requirements of the pressure, it can only be centered on information technology construction, inevitably stretched to the limit, we must make up for the lack of it; housing construction jerry-building, resulting in hidden dangers, caused by the neighbors and disputes, so the waterproofing and leakage industry thrived, the wasteful consumption of social resources Huge, when the house was built a little attention, spend a little money to worry about.

Suggested to carry out free online video tutorial activities, the whole process with high-definition video recordings, compiled and published publicly.

All of the above is my Baidu know the site independently written, typed verbatim, in the future, these questions, should be responsible for academicians, doctoral students, deans, presidents, ministers to answer online.

What is an analog circuit? The most difficult, the most basic, under the premise of limiting discrete components, general-purpose integrated circuits, undergraduates can not do, post-doctoral also have no way, this kung fu is so hard!!!! Unlike math problems, foreign language assignments, improve a degree level can be solved; doing business, political performance, play stocks, high investment can cover the problem, here is not working! Whether it is analog circuit technical indicators, special features, analog computers, etc., are hard work!!! Many parameters can be calculated or debugged out, are based on, this is not to download the line imitation can achieve the same effect of the skills, is complex, flexible and mobile space, time way of thinking, but also give full consideration to the conditions of supply to the market, customer requirements, the highest level of developed countries. Mechanical mechanism design, special processing technology is similar to the way of thinking. I specialize in this, and many publishers have contacted, willing to provide a full set of innovative teaching materials from the basic line to high-performance application examples, they are not willing to publish, they want foreign translations of the original textbooks, plagiarized foreign textbooks. Now we are seeking sponsorship from large enterprises, please contact the Director of Overseas Chinese Affairs Office of the State Council for details. Analysis of the current situation of China's industrial development under the economic crisis and countermeasures will be competitive advanced product design information, process know-how, processing techniques, debugging principles, sales strategies, completely free of charge to the public, at the disposal of the enterprises to simplify the industrialization. I have contacted the publishing department, they do not do. People's first cognition is the most important, today's teachers are generally low level and ability to cross the threshold, can not answer students in the classroom, laboratory, graduation design problems, that dozens of hundreds of pages of mathematical formulas, are copied from the original foreign books, and then the three passers on the copying of the translated published materials, the basic circuits can not be designed, will not be debugged, so your youth is spoiled! What are the characteristics of the circuit structure of high-frequency power amplifiers I have a deep understanding of high-frequency power amplification, high efficiency, high reliability, do not burn the tube, and debugging details, because of forced layoffs, will not be introduced. After I was laid off, I also retained more than a thousand high-frequency ceramic skeleton coil, with a 3DG12 oscillation output of high-frequency current coupled by a capacitor, you can light up the tube radio indicator bulb, which is a rated voltage of 6.3V, the operating current of more than a hundred milliamps of incandescent lamps. I have contacted many publishers for more than thirty years, they are not willing to publish; was to be tens of dollars a set of prices, along with debugging details to cost price, involving many kinds of actual lines, are not the contents of existing scientific and technical books, textbooks, the introduction of the version of the solid-state circuits textbooks do not have these contents, in the deputy sheng level treatment of positive ting-level cadres under the administrative order, these high-frequency ceramic Skeleton was also destroyed by the garden section of all. To low-frequency analog circuits, for example, when undergraduates can not help, and then on the postgraduate students are also ineffective; this is different from mathematics, foreign languages, Chinese language, machining, bioengineering and so on, college entrance exams in the subject of some students can not be done, a change of a high degree of education is possible to make, this translation, writing elementary school students can not, come to a high degree of education can be done, and the creation of masterpieces; this part of the processing can not be done, the imported Processing equipment will be solved, and the level of material manufacturing is always hovering; the genetic conditions of the research level of the subject can not be done down, the introduction of imported reagents, equipment, reference to the latest foreign literature will be taken down, and the localization of imported reagents but long time to attack; and bicycle thieves, locksmiths and then the level is high, but also not to create the developed countries of the precision mechanical locks; clinicians, surgeons, doctors in the high, but also Manufacture of advanced diagnostic instruments, surgical instruments, medicines; aircraft pilots safe flight cumulative time longer, fly through the complex climate, environmental conditions, but also the manufacture of large aircraft, high-performance aircraft. In terms of analog circuits, download lines from the Internet is incomplete, do not know the design process, you can not adjust to the best technical indicators; for high-frequency circuits, there should be a basis for the design, debugging basis, the market, the school, the library of literature inside the absence of the ability to be a very small number of people, there are conditions on the integrated circuits to make the sale of integrated circuits, you use integrated circuits again skilful, can not be used with discrete components to re, can be used with the containing the device architecture Imported software to design integrated circuits is the best of the best, and millions of dollars of software to design integrated circuits, and can not capture the international market and the domestic market, can not return to the capital, and to the hedge. Analog Electronics Design Circuits Ouch, this is 30 years ago, the basic skills ah, what era is this? Just went to the post-doctoral laboratory to ask, he led the graduate students also shook his head, people but in the world of science and technology to overcome the cutting-edge subjects of the master, the future Nobel Prize winners. You guys can just use integrated circuits, can't you? Dead unenlightened, read bad books!!!! Analog electronic questions about the duty cycle adjustable rectangular wave oscillator I was 30 years ago, it is completely with domestic electronic components to achieve a wider range of duty cycle, duty cycle with a pointer meter display, can produce 0 to 300 volts peak voltage, with a full value of 5 amps thermoelectric effect of high-frequency ammeter to indicate the output current, 0 to 15 amps peak current, the power transistor with a 3DD101F, a number of power tubes Parallel connection, the minimum pulse width of 1 subtle, pulse width, pulse repetition period are independently adjustable (in the duty cycle interference occurs only when they affect each other), can be said to be a high-power high-voltage pulse generator for thin-film resistors pulse aging, in accordance with the International Electrotechnical Organization IEC, a standard design; at that time, the talent of this talent secondary school graduates. So, the system has changed, open, reform, democracy, freedom, high school students, post-doctoral ability but not as good as I 30 years ago.24V DC wheelchair holding motor doubt

Just sell me, today I also bought two imported, disassembled one of them on the spot, because of the jammed, and repaired on the spot. Prepare to lent free of charge to the local science and technology museums around the various transportation device exhibits, its control part, transmission part of the design, procurement, assembly, debugging will be all open, allowing download, can be sold at cost price CD-ROM carrier. Now modified Japanese assisted vehicle controller, has been able to significantly increase the utilization rate of battery capacity, its original design drawings, has been provided free of charge to the head of a science and technology museum, there are 30 drawings it. Chinese science and technology books, diplomas, degrees, titles can not replace the effect of the above. If the official science and technology museum does not accept, please run a folk science and technology museum, to the majority of visitors nearly cheap to provide really effective substantive original design information. This is the true sense of patriotism, is the most efficient use of resources, is the greatest contribution to society, is to fundamentally improve the quality of the nation, enhance the international competitiveness of national industry. Charge goods in the market sales degree is large, large market share is based on trade secrets and other unspoken rules, even if the design and manufacture of advanced, is not necessarily justice. Your computers and cell phones are today's premium products. Do their manufacturers teach you to start from the basics and make innovative products that speak to them? They are now the whole set of design, procurement, production processes, testing technology, not to mention the core, key, even if the existing non-proprietary technology, are blocked droplets! Therefore, China is now said to "go to the market, the market to test". Are incompetent management level is a big manifestation. To start from the basic skills, production know-how published, must be combined with the daily necessities used by the general public to unveil the secrets of the industry; for the world's leading, the physical cost of its high price of high-grade luxury goods such as the next generation of keyboards, harmony telephone, playing electronic online games, high-speed response keyboard, etc., to the high reliability of the bicycle anti-theft locks, should be published in a variety of practical design, production of substantive information. By grasping the two ends, to guide, enlighten and inspire enterprises and individuals as well as students at school to design and manufacture their own mid-range, market-competitive wide range of products, is to improve the overall quality of the nation, which is what the ancients said; to take the law from the top, and only get to the middle; you see the high school scholar, post-doctoral, doctoral, and the effectiveness of the doctoral degree is even higher? Empty talk about innovation and transformation is a waste of social resources, waste of students' precious youth time, ruin their future, and can not hold up their heads in front of developed countries and multinational companies. Doing hardware is very time-consuming, costly, without decades of continuous and uninterrupted experience, no financial support, no production practice verification, no business advice, it is empty talk, and can come out of the people are very rare, one is the elimination rate is high, one is the lack of money and time to support, and more importantly, many people, to the end of their lives, do not know where they are wrong? What didn't they do right? They simply do not know what the best approach is under the historical conditions and environmental constraints at that time. Or is it better to excel in science and take a high school entrance exam to be affordable and persuasive!!!! Employment is the overriding priority, fundamental to human survival!!!! Should the government give money to the poor? All the information on the design, processing, adjustment, and location of parts procurement of the exhibits in the Science and Technology Museum should be made public, so as to teach people to fish, and to improve the quality of the whole nation and the whole people. Nowadays, the teaching materials are all a big copy, now all the fashionable system integration, high-tech assemblers, with money to hit it. The state's strategic secrets, of course, should be strictly confidential, business secrets by the beneficiaries of protection.

Foreign academic research done with social resources is generally completely open. In China, many of the research done with state resources should be made public, and the teaching materials and experimental books of higher education institutions should be made public, or else academic corruption will be exacerbated! This is a manifestation of responsibility for using state and social resources. In China, the public ownership of knowledge, the openness of the substance and the competition of technical means, the actual device can be reproduced free of charge in a third party, the technical indicators can be measured by an independent third party, the public performance comparison data, indicators, is the only way to completely enhance basic education across the long unattainable threshold, the state should pay the relevant costs; this is not a substitute for plagiarism. The next generation keyboard I designed 25 years ago has been disclosed internally at no cost in several industries because there are no patent applications to fund it and no labs. Provide innovative exhibits to science and technology museums and science exhibits, publicize all design, purchasing, processing, debugging, and maintenance information, and improve the basic quality of the nation. Who can tell me about the 70's and 80's ah To be close to life, talk about the experience of the older generation on the 70's teaching materials, industrial equipment, technological innovation information is completely open to the public, the whole country to learn from each other, unreservedly exchanged all over the world, raw materials, the highest utilization rate of equipment, from a variety of machine tools, automobiles, wire cutting machines, EDM machine tools, pumps, internal combustion engines, motors, clocks and watches, bicycles, lamps and so on. The spare parts are common and interchangeable throughout the country, the basic drawings are open to the public, the national unified design of the DDZ instrument, the national unified design of the N1 clock core, etc. In the 80's, the diploma, the education, the title says it all, and the whole thing is introduced. Consumption of social resources, damage to the interests of consumers, artificial trouble, creating maintenance difficulties, all the obstacles are to make more money, more money fraud. I to the national, provincial and municipal science and technology museums, are proposed to provide innovative exhibits, to be completely open to visitors all the design, processing, assembly, adjustment of information, the publication of raw materials, equipment, accessories purchasing location, allow the university is what the place? No matter how high the education and title, will not design and manufacture teaching aids, will not design and manufacture teaching instruments, will not maintain the instruments and equipment; with your parents' money to import teaching instruments to imitate the commissioned factory imitation is the best; with your parents' money to ask people outside of the school to repair equipment, procurement of spare parts from outside the school; with your parents' money to ask the production of teaching instruments to provide teaching experiments handouts, will be the author of the name of their on the There are awards for outstanding achievement in teaching; the formulas and foreign languages that you are taught to memorize can never compare to the contents of the textbooks that the Massachusetts Institute of Technology (MIT) of the United States has made public on the Internet. Students should not complain about the expensive tuition, in addition to the reasons of the teachers above, your own basic experiments, professional classes on the confused, high investment under the innovative experimental projects, Challenge Cup, science and technology competitions, graduation thesis, industry-university research, science and technology awards, business development, can not see the sunshine, will be the real money into a pile of garbage !!!! Nowadays, college students and graduate students themselves have no credit!!!! They are always thinking of doing "projects", which are at best downloading other people's designs, reading foreign language materials, organizing activities, creating an atmosphere, doing small business, etc., and spending money and cheating money on campus !!!!!!!!!!!!!! Allow visitors to download these materials, about no rebate to *****, so even if I am willing to give away, no one cares. sci for college students how to help? How can we utilize it? Thank you all report head:

Should be capital letters SCI, EI. they can help you to graduate school, make money, find a job, add honor, for the alma mater to compete, so that the school to you to increase investment. At the same time also corrupted the academic style, prompted plagiarism has long spread to the vast majority of undergraduate thesis, to the community and the country to create a huge potential social crisis, traitorous and unscrupulous professors, experts and social elites kidnapped the government, forcing the government to social individuals to inject huge amounts of money, raised tuition and national investment, a large number of purchases of teaching and scientific research equipment resulting in equipment idling, low rate of completion, high maintenance costs, equipment out of the very fast, Low utilization rate, high social cost of teaching costs, teachers cheated the high remuneration, a large number of imports of large-scale precision instruments and reagents, non-revenue consumption of a large number of social resources, and the formation of a more and more powerful vicious circle, in essence, is the hostile countries through the agents in China - traitors unlawful intellectuals to create a similar Star Wars on the society in the The essence is that hostile countries through their agents in China - traitors and illegal intellectuals to create a similar Star Wars on society in the corrosion and destruction of the aura of grandeur, is a superpower outside the theoretical virus spread, jeopardizing national security! More clever black trick is the agent of foreign hostile forces hypocritically induced us to put our national strength into the fight for the Nobel Prize in the air, to do those absurd subjects, but also to entice you just a little bit, and then imported the most advanced analytical instrumentation and equipment in foreign countries, to the developed countries of those top universities for training, enrollment, you will be able to achieve the highest realm of your dreams. This is a conspiracy created by traitors, delusional attempts to confuse and destroy the country's utopian fantasies; it is digging black holes and traps, and it is a compelling propaganda ploy to consume the national power in huge amounts and to kidnap the zhengfu through the universities to award the intellectuals who publish the papers of the three major searches heavily. Nowadays, scientific and technological papers can represent the innovation level of the country, which is about to win the Nobel Prize. Intellectuals rely on foreign scientific and technological literature, imported equipment and reagents fabricated papers once published, you can raise the title, there are bonuses to hand, the beneficiaries are happy, they boasted that China's various theses have been mysterious, treacherous and unpredictable, God, God, heaven and earth, is outside the foreign hostile to China's external forces and their partners, bred by China's domestic speculators, advocates of domestic interests, social and economic interests of the country's science and technology, the elite teamed up to fabricate the national science and technology, and the publicity of the Chinese government. The elite teamed up to concoct the only direction of the country's scientific and technological development, demagoguery, luring the Chinese government to the path of bankruptcy, are all traps, tempting China to buy large quantities of advanced instruments, study and training abroad, digging up and deficits in the national treasury, corrupting the credits, and accelerating the corruption of the black tricks.

This is the graduates find it difficult to find a job, enterprise products in the international competitiveness of the poor, can only do system integration, in the basic industrial capacity did not substantially improve, still lagging behind the developed countries for decades, and even 30 years ago, the basic level of China is not as good as, and the root cause of the social conflict is intense. Therefore, for China has a substantial significance of the real moves, practical work, is to use China's resources, from the foundation of manufacturing products with international competitiveness, and is a priority for national consumption. With huge social resources, imported equipment, imported integrated circuits to smash political achievements for the purpose of introducing talent, too dangerous!!!! To be strictly purged! No mercy! Three major search paper award shall not exceed one thousand dollars, can not be domestic production of materials, equipment into a leading commodity in the international arena, and rely on the procurement of foreign devices, reagents in the form of system integration to put together the paper, is the real money into garbage, is the trap of imperialism, the theory of the virus, greatly consume national resources, seriously promote corruption, blackmail the government, jeopardize the regime. Therefore, the way out of China's education is not a generalized openness, which is now too democratic and free, but to start from the foundation where problems abound, and solidity is the fundamental way. Mr. Zhang Ming said: various evaluation index systems, such as the number of papers in core journals, the number of international SCI and EI papers, the number of national subjects, the number of provincial and ministerial subjects, the total amount of funding for the subjects, etc., are in fact only self-indulgence with Chinese academic characteristics. China's so-called academic core journals, its academic quality, originally known, but, in the case of various universities crazy pursuit of the number of papers, a university took the lead in the invention of the rigid provisions of postgraduate students to publish core journal papers as a prerequisite for graduation, artificially pulling up the number of thesis published by the school, and other schools have to follow suit, so that the essence of this illegal behavior, the new practice of colleges and universities. Graduate students can not do the paper, buy, not only buy the paper, but also buy space, various academic journals, thus selling space, a trend, further corrupting the quality of academic journals. The current situation is that, matching China's largest number of university students in the world, China also has the world's largest number of papers published, but the competitiveness of scientific research is declining year by year, the basic industrial capacity has not been substantially improved, and is still decades behind the developed countries. This is true for core journals and thesis publications, as well as for the so-called topics. Often, the bigger the official, the more topics, of course, the less time to do (this is assuming that they are all learned under the premise), can only let the students to do, so graduate students have become the tutor's wage earners, cheap labor, such a topic, what quality can be imagined. From the basic level of the teachers, the bottom line of morality, the ability to innovate, the sense of responsibility, the minimum sense of morality, from the Chinese bicycle and the developed countries of the bicycle of every detail of the comparison can be clearly differentiated, so that the substantive level of the subject and the dissertation you know it yourself. Teachers in schools, in the face of regular evaluations, must come up with something to make up the numbers, or they will be laid off. Of course, if the output is high, there are also rewards, especially in the so-called A grade B grade publications, the bonus is very substantial. Do anti-terrorism and anti-corruption need to be combined? So does counter-terrorism need to be combined with anti-corruption? Please tell us your views on the causes of the current world economic crisisSo we need to crack down on the four-in-one thugs of political hooliganism, academic hooliganism, economic fraud, and triad headWhat is bourgeois liberalization? That is, professors can not start from the ground up, relying on foreign imports of modules, reagents, integrated circuits, computers, instruments and equipment integration, but also to blackmail the government to bleed, to support the "high-tech" is to consume, waste of social resources. China's scarcity of what kind of equipment and technology sick intellectuals are not short of importing the most advanced international equipment, analytical instruments, such as Haas gear processing equipment, these top equipment, China has imported a lot of; not short of huge research funds. Just can not use this as the basis for manufacturing top mechanical equipment mother machine. The second prototype of the next-generation keyboard was handmade on the side of the road, and the Chinese mentioned as visitors to the exhibition illegal display to the Japanese at the booth, who immediately had to put it in their booth for the video camera; large Japanese companies used more than a dozen Chinese technicians to translate more than a hundred pages of the basic information and send it back to the mainland. And Overseas Chinese 8 Office forced the designers and manufacturers to retire early, the designers and manufacturers for more than 20 years have no instruments and equipment, working funds, no workplace; with high scientific research funds of high title, high education regardless of engineering technology, theoretical analysis, can not go beyond this step. What else do you think China lacks? Jiang Shuzhuo accused me of often improvising on the spot to answer students' questions in thesis and innovation projects, stealing the limelight, from design skills, processing industry, algorithms, patent document writing rules for everything, while his highly educated, highly titled characters are uneducated, stupefied, and pressurized to implement reverse elimination, forcing me to be laid off and unemployed in advance. This is the destruction of basic education, to combat innovation.

Upstairs throwing things thrown to the ground floor (we live in the ground floor), dirty and messy, we want to give the upstairs tenants to stick a note, telling them not to throw garbage, write what good

Notice: 1) my brother-in-law in the Public Security Bureau of the police dog training base, will soon be regularly in the basic training in the hallway, the specific way of throwing to the downstairs of the object to absorb the characteristics of the odor, and then to the upstairs floor-by-floor search for matching households; first of all, the police dog training base. Looking for a match to match the occupants; first to the doorway of the occupants to confirm, and then to the occupants of the human body odor characteristics of the occupants. Aggressive large dogs are a threat to humans. For your life and safety, please remain calm and curb excess movement and language during the verification process to ensure your life and safety. A few days a week, the canine will be on your doorstep waiting for your arrival and you can respond politely yo...

2) Public Security University physical evidence identification program will soon be here to carry out DNA biometric identification work, the test material is upstairs thrown down food, hair, cigarette butts, toothpicks; because the biological DNA characteristics than fingerprints, address, home phone, survival must be customer information more advanced private information, can predict your future disease, cancer, personality and other fatal flaws, before the announcement, please upstairs! Users to come to claim for hope. 3) extracted to your fingerprints will also be made public, others can imitate your live fingerprints on the fingerprint identification device, if you have any comments, please visit as soon as possible, put forward your application and request for hope. 4) every three floors to install microwave, infrared, ultrasonic integrated positioning test instruments, real-time positioning of space-moving objects, photography and record archives, and with high-pressure jets, controlled explosions, Laser beam to destroy, burn the space moving debris, for your safety, please take the initiative to avoid the laser beam, so as to avoid the untoward.