FET is similar to the electronic tube in history.

There's really nothing to calculate,

Design according to the characteristic curve. The curve of each device is different, and the low-speed circuit is very different from the high-frequency environment and power line.

This is spatial imaginative thinking, which belongs to experimental technology and can be mastered through practical tests. If you insist on using mathematics to analyze expressions, it is also deceiving yourself.

Books that speculate and copy formulas are rampant, that is, books that do not introduce debugging methods, think about directions and adjust details.

Because almost all teachers don't understand the true meaning of analog circuits,

They also copy books,

In history, all the knives and guns worked hard, burning a lot of utensils and achieving nothing.

It's no use giving you the circuit diagram,

Especially high frequency circuits.

High-performance switching power supplies are similar.

Because there are too many fallen people and this field is too "demonized", it is horribly called "magic electricity" and "devil circuit" by losers.

As long as undergraduates don't understand,

It's no use being a postdoctoral fellow.

Even the simplest and most basic transistor circuit has completely different tricks in design and debugging because of different requirements.

I'm going to set up a website to teach for free.

Moreover, it costs at least 1000 yuan to build a website (I am poor and really can't afford it), and the management can come by myself.

If you set up a website, I will contribute to you for free. You can answer questions through online synchronous testing and verification, and inspire everyone to learn from each other, be shocked, be suddenly enlightened, and draw inferences from one another.

It also embodies the ability of spatial thinking.

Painting, music, mathematics, medicine, chemistry, sports, acrobatics, skills, biology, sculpture, embroidery, seal cutting, calligraphy and other majors can spread, help and bring.

In other words, in this field, there are very few people who have a thorough understanding and are unwilling to come out to expose, expose, expose, publicize and point out. If they have a little eye and touch some doorways, they will be labeled as "trade secrets, technical know-how, top inventions and creations" and will never show them to anyone, and they will be kept strictly confidential.

China can't compete with western advanced industrial countries in basic physical quantity measuring instruments.

The accuracy and range of voltmeter, ammeter, length measurement and weight measurement are all 100 meters.

This is one of them, and precision machinery also has some similar basic knowledge bottlenecks.

Therefore, it is better to "play with mathematical tools" and play with the reality of "wavelet and chaos" mathematical theory, and you can still feel the margin.

Even if you get full marks in every analog circuit exam,

As soon as I got to the actual track, I was in a mess. I don't know what the problem is. It is extremely shameful that only the discrete components of 10 yuan can expose postdoctoral, academician and doctoral supervisor. Fortunately, the teacher himself was shocked by it.

Zhao Zhao teacher also can't see the door, can't tell why, can't tell the truth.

There is something wrong with this circuit. I don't even know how to adjust the parameters there or change the design mistakes. Even the possibility of "crossing the river by feeling the stones" is zero.

In the past, foreign televisions and stereos were all discrete components, but now they are all large-scale integrated circuits, and foreigners also have design defects. It is necessary to accumulate experience and analyze problems through the after-sales maintenance department, rather than telling consumers.

Therefore, the maintenance departments of imported equipment are experienced, and similar failures often occur in machines of the same model, and internal feedback is given to foreign design departments.

Even for ordinary circuits, I have seen the design defects of famous Japanese brand manufacturers.

It is useless to be familiar with integrated circuit design software. I can't make excellent integrated circuits by myself, so I can only look around in the circle painted by foreigners.

Fortunately, there are imported high-performance integrated circuits, imported top modules, insurmountable machines and perfect application software systems.

Otherwise hee hee! ! ! ! !

Don't worry, don't worry, the integrated circuit user's manual provided by foreigners has been applying the introduction part.

They are all examples of explaining the peripheral circuits of integrated circuits in detail, and people come to the door for after-sales service.

You can also provide a small amount of free gifts to train students and develop potential customers.

Therefore, making academic reports is easy to be opportunistic, boastful, mysterious, exaggerated and exaggerated.

Publishing a book is plagiarism,

Is a donkey or a horse walking,

Please go to the scene where students do experiments, graduation thesis and "scientific research discussion".

Answer specific and simple questions, you can't avoid sharp edges, avoid the heavy ones, and escape from reality. It must be: the real person is exposed, the true face of Lushan Mountain is exposed, the real talent is exposed, and it is exposed in broad daylight.