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Two key points of capacitor Filtering

Capacitors are very important in EMC design and are also common filter elements! However, during my training, we found that the usage of capacitors was not very clear! Here I will introduce two key points of capacitor Filtering: 1. capacitor filtering has a frequency band. Many people think that the larger the capacitance, the better. Otherwise, each capacitor has a certain filtering frequency band. Large Capacitor Filters low frequencies and small Capacitor Filters high frequencies, it is main

What do I do with iPad/itouch?

still good (but it is better to read PDF books on iPad) // Summary Aside from the game, I think the itouch/iPad app is mainly an Information Acquisition terminal. Currently, the developing and stable iTunes platform forms a virtuous circle of information. The above app also needs to think about and improve from the Information Acquisition layer and presentation layer-how to better obtain information, summarize and present it to users. However, for information input, the iPad/itouch still requi

PCB cabling procedure

ROM and ram. Chip Install decoupling nextCapacitor . In fact, printed circuit board cabling, pin connections, and wiring may all contain a large inductance effect. A large inductance may cause a severe switch noise Spike when the VCC goes online. The only way to prevent the VCC from switching noise spikes is Power Supply Place a 0.1uf Electronics Decoupling capacitor. If a surface mount component is used on the circuit board, you can use the slice capacitor to directly pin the component and fix

Summary of Echarts usage (2)

graphics L Esl. js: Image Engine The ECharts. js file in the Statics folder abstracts some methods for loading, processing, Initializing Various image types, and rendering the configuration files for Echarts.2. Abstracted Echarts. According to the instructions on the Echarts official website, I will summarize the use of Echarts into several steps. At the same time, the corresponding implementation of these steps corresponds to the Echarts under the S

With these several SCM Control Board design principles, the boss for you praise!

decoupling capacitor between VCC and the power source. If a surface mount element is used on the circuit board, it can be fastened directly to the component with a chip capacitor on the VCC pin. It is best to use ceramic capacitors because they have low electrostatic loss (ESL) and high-frequency impedance, and the dielectric stability of this capacitor temperature and time is good. Try not to use tantalum capacitors, because at high frequencies, it

Mourning Wang Jue teacher

Wang Jue teacher died, in fact, although not his students, but his students to do scientific research attitude very admire, mourning, hope he walked all the way.Before reading, once consulted Wang Jue teacher, asked him on my current situation to give a suggestion, need to read those books.Mr. Wang's suggestion at the time was that I should read at least three books, ESL,PRML,CV (convex optimization).Because I am a CV-born, the theoretical basis to se

003, Hot problem

10:08 2015-04-07003, Hot problemThis is not to say that the problem is hot, but that in a document there are two of them.Common Words in english-numbers vocabulary for ESL EFL TEFL TOEFL TESL 中文版 learn.pdfThis PDF document is easy to download online.1000 of the most commonly used words, wow, that value of the content is not much to say. So I began to extract the words inside. find No. 575 and No. 688, all T. online multi-access, such as the nex

Take a look at Daniel's data mining learning experience

, dug out and then evaluated, the general situation is so cyclic n rounds; So-so-so out of a nearly reliable, barely able to justify the initial embryo, the results look like that back. Summarize a statement (analysis of the results) out, for your statement, the data again targeted to wash a few times, give a cleaner analysis results, this version is basically persuasive. Pay attention to a little, and then draw an infographic or something, illustrated, you can initially hand in the homewo

Calculation of the size of the power supply filter capacitor

resistance, inductance, and capacitance, there is self-resonance, only in this self-resonance frequency, the equivalent resistance is the smallest, so the best filter! The equivalent model of a capacitor is an inductance L, a resistor R and a capacitor C in series, The inductance L is obtained from the capacitor lead, and the resistance R represents the active power loss of the capacitor. Therefore, capacitor C can be equivalent to the series LC loop for its resonance frequency. The conditi

Javascript framework echarts plug-in achieves the effect of cool person cube

Javascript framework echarts plug-in to implement cool human cube Recently, due to project requirements, a network relationship effect similar to the person-cube effect is required. After querying many documents, it is found that the open-source echarts component of Baidu is very suitable and the loading speed is great, echarts graphics are mainly based on the new features of html5 and the canvas. The following are some of my own processes and experiences for your reference. There are detailed

Compare Svm,mars and Bruto (R language) with a simple example

Background restatementThis paper is the reproduction process of Table 12.2 in esl:12.3 support vector machine and kernel. The specific questions are as follows:100 observations are generated in two categories. The first class has 4 standard normal independent features \ (x_1,x_2,x_3,x_4\). The second class also has four standard normal independent features, but the condition is \ (9\le \sum x_j^2\le 16\). This is a relatively simple question. Consider

HTML5-based open source icon Library-echarts

"Here each small example is in the example folder, into the example folder to see the content :Figure "7"Go back to double-click the example.html page and find a more popular Quick start:Figure "8"Click to enter:Figure "9"On the left is the configuration JSON file that is called to the outermost interface in the top-most structure , so it is very convenient to briefly describe the method used first:In general: We provide a copy of the configuration data , and then call the relevant interface Ec

36 unique layout of the site homepage conceptual design

The world every day to see the creative design, and finally only a little work can be published, leaving those, designers and wood to hide them, but to share online, for the students to contribute inspiration. Today, we collected a set of unique web site concept design from the chasing wave, read it, this is called creativity! Albumarium UI Lang Homepage with Hero Image Church Website Schedulingdirect Mailgun Eatfirst

RABBITMQ Common Commands

,acks_uncommitted,messages_. Unconfirmed,prefetch_count,client_flow_blocked7). Node type modification Close FirstRabbitmqctl Stop_app Modify TypeRabbitmqctl Change_cluster_node_type Disc Rabbitmqctl Change_cluster_node_type Ram Last Launch Rabbitmqctl Start_app 8). Exit the cluster Rabbitmqctl Start_app 9). Removing nodes Ps:rabbit@rabbit1 is a node that exists in a cluster Rabbimq-plugins Http://www.rabbitmq.com/man/rabbitmq-plugins.1.man.htmlsystem Commands Uninstall#rpm-qa|

Open source projects that use MongoDB

Label:Filtered by Google's search results. Statistical application Counlty https://count.ly/ Mongopress Open source CMS system http://www.mongopress.org/ Rubedo Open source CMS system (self-proclaimed nocms) http://www.rubedo-project.org/ GRAYLOG2 Log Management System http://www.graylog2.org/ Keystonejs (CMS system) http://keystonejs.com/ CALIPSO (CMS) https://github.com/cliftonc/calipso/ Shapado (open source Qa system customer service) Https://github.com/ricodigo/shapad

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