This introductory chapter is devoted to reviewing the fundamental ideas of control from a multivariable point of view. In some cases, the mathematics and operations on systems (modelling, pole placement, etc.), as previously treated in introductory courses and textbooks, convey to the readers an un- realistic image of systems engineering. The simplifying assumptions, simple examples and “perfect” model set-up usually used in these scenarios present the control problem as a pure mathematical problem, sometimes losing the physical meaning of the involved concepts and operations. We try to empha- sise the engineering implication of some of these concepts and, before entering into a detailed treatment of the different topics, a general qualitative overview is provided in this chapter.
標(biāo)簽： MultivariableControlSystems
上傳時(shí)間： 2020-06-10
上傳用戶(hù)：shancjb
Recent years have seen a rapid development of neural network control tech- niques and their successful applications. Numerous simulation studies and actual industrial implementations show that artificial neural network is a good candidate for function approximation and control system design in solving the control problems of complex nonlinear systems in the presence of different kinds of uncertainties. Many control approaches/methods, reporting inventions and control applications within the fields of adaptive control, neural control and fuzzy systems, have been published in various books, journals and conference proceedings.
標(biāo)簽： Stable_adaptive_neural_network_co ntrol
上傳時(shí)間： 2020-06-10
上傳用戶(hù)：shancjb
)Armature windings of the electric motor for NO.2 deck cargo winch found low insulation. Windings re-winded,painted and baked dry. (2) NO.1 main air compressor failed to build up pressure.The machine disassembled, cleaned and inspected. The discharge valve plate found broken. The valve palte renewed and running trials tested after being reassembled.
標(biāo)簽： 答案
上傳時(shí)間： 2020-07-14
上傳用戶(hù)：
EN 300220-1V2.4.1 Electromagnetic compatibility and Radio spectrum Matters (ERM);Short Range Devices (SRD);Radio equipment to be used in the 25 MHz to 1 000 MHz frequency range with power levels ranging up to 500 mW; Part 1: Technical characteristics and test methods
標(biāo)簽： EMC
上傳時(shí)間： 2021-07-25
上傳用戶(hù)：beiyouxia
FFeeaattuurreess ? Input voltage range: 2.2 to 6V ? Programmable LED Current ? Drives LEDs Up to 27V ? Switching Frequency：up to 800KHz ? Wide dimming frequency range: 20KHz~ 360 KHz ? Programmable Overvoltage Protection ? Tiny SOP8/PP Package
標(biāo)簽： HX3248C
上傳時(shí)間： 2021-11-05
上傳用戶(hù)：aben
Wide 2.2V to 6V Input Voltage Range ? 0.20V FB adjustable LED drive current ? Directly drive 9 Series 1W LED at VIN>=6V ? Fixed 800KHz Switching Frequency ? Max. 3A Switching Current Capability ? Up to 92% efficiency ? Excellent line and load regulation ? EN PIN TTL shutdown capability ? Internal Optimize Power MOSFET
標(biāo)簽： sc3633
上傳時(shí)間： 2021-11-05
上傳用戶(hù)：d1997wayne
2.7V to 5.5V input voltage Range? Efficiency up to 96% ? 24V Boost converter with 12A switch current Limit? 600KHz fixed Switching Frequency? Integrated soft-start? Thermal Shutdown? Under voltage Lockout? Support external LDO auxiliary power supply? 8-Pin SOP-PP PackageAPPLICATIONSPortable Audio Amplifier Power SupplyPower BankQC 2.0/Type CWireless ChargerPOS Printer Power SupplySmall Motor Power Supply
標(biāo)簽： XR2981
上傳時(shí)間： 2021-11-05
上傳用戶(hù)：
This book addresses programmer attitudes, but it’s not some kind of psychology textbook. We’ll investigate many topics, including: Source code presentation Defensive coding techniques How to debug programs effectively Good teamworking skills Managing your source code Take a quick glance through the table of contents to see exactly what’s covered. What is the rationale behind my selection of topics? I’ve been mentor- ing trainee programmers for many years, and these are the topics that have come up time and time again. I’ve also worked in the software factory for long enough to have seen the recurring problems—I address these too. If you can conquer all of these programming demons, you’ll progress from an apprentice coder to a real code craftsman.
標(biāo)簽： excellent practice writing Craft Code code the of
上傳時(shí)間： 2021-11-09
上傳用戶(hù)：danix800
FC162是一款低功耗，高速，高噪聲容限，EPROM/ROM基于8位CMOS工藝制造的單片機(jī)，采用RISC指令集，共有42條指令， 除分支指令為兩個(gè)周期指令以外其余為單周期指令。這種易用、易記的指令集大大縮短了開(kāi)發(fā)時(shí)間。 FC162包含了上電復(fù)位(Power-on Reset POR)，掉電復(fù)位(Brown-out Reset BOR)， 上電復(fù)位計(jì)數(shù)器（Power-up Reset Timer PWRT），振蕩啟動(dòng)計(jì)數(shù)器 (Oscillator Start-up Timer OST)， 看門(mén)狗定時(shí)器(Watchdog Timer)， EPROM/ROM， SRAM，雙向三 態(tài)I/O口，（可以設(shè)置為上拉/下拉）， 省電睡眠模式， 一個(gè)帶8位預(yù)置器的8位定時(shí)/計(jì)數(shù)器，獨(dú)立中斷，睡眠喚醒模式和可靠的代碼保 護(hù)，有兩個(gè)振蕩源可供用戶(hù)配置選擇，包含省電振蕩源和低功耗振蕩器。 FC162可訪(fǎng)問(wèn)256×13的程序存儲(chǔ)空間。 FC162能直接或間接訪(fǎng)問(wèn)寄存器以及數(shù)據(jù)存儲(chǔ)區(qū)，所有的特殊功能寄存器分布在數(shù)據(jù)存儲(chǔ)區(qū)同時(shí)包含特定的程序指針。
標(biāo)簽： fc162
上傳時(shí)間： 2021-11-13
上傳用戶(hù)：qingfengchizhu
General Design Specification:1. AC Input Range 180-264Vac, Isolated ac-dc offline, 12LEDS,Output 700mA2. Intelligent wall dimmer detections(Leading-edge dimmer , Trailing-edgedimmer , No-dimmer)3. Multiple dimming control scheme4. Wide dimming range from 1% up to 100%5. No visible flicker6. Resonant control to achieve high efficiency7. High Power Factor, 0.9 without dimmer8. Temperature degrade control to adjust the LED9. Primary-only Sensing eliminates opto-isolator feedback and simplifies design
標(biāo)簽： iw3617
上傳時(shí)間： 2021-12-03
上傳用戶(hù)：canderile
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