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historically

二極管導通開關穩壓器引發的故障時間

Most circuit designers are familiar with diode dynamiccharacteristics such as charge storage, voltage dependentcapacitance and reverse recovery time. Less commonlyacknowledged and manufacturer specifi ed is diode forwardturn-on time. This parameter describes the timerequired for a diode to turn on and clamp at its forwardvoltage drop. historically, this extremely short time, unitsof nanoseconds, has been so small that user and vendoralike have essentially ignored it. It is rarely discussed andalmost never specifi ed. Recently, switching regulator clockrate and transition time have become faster, making diodeturn-on time a critical issue. Increased clock rates aremandated to achieve smaller magnetics size; decreasedtransition times somewhat aid overall effi ciency but areprincipally needed to minimize IC heat rise. At clock speedsbeyond about 1MHz, transition time losses are the primarysource of die heating.

標簽： 二極管導通開關穩壓器

上傳時間： 2013-10-10

上傳用戶：誰偷了我的麥兜
This is an implementation of double-array structure for representing trie, as proposed by Junichi A

This is an implementation of double-array structure for representing trie, as proposed by Junichi Aoe [1]. Trie is a kind of digital search tree, an efficient indexing method with O(1) time complexity for searching. Comparably as efficient as hashing, trie also provides flexibility on incremental matching and key spelling manipulation. This makes it ideal for lexical analyzers, as well as spelling dictionaries. See the details of the implementation at [2]: http://linux.thai.net/~thep/datrie/datrie.html historically, this was first implemented as C++ classes in a library called midatrie [2], but later simplified and rewritten from scratch in C.

標簽： implementation double-array representing structure

上傳時間： 2013-12-10

上傳用戶：shinesyh
Implementing+802.11

Communication, a word that many associate with modern technology, actually has nothing to do with technology. At its core, communication involves nothing more than the spoken or written word, and symbolic languages like art and music. Technology has become synonymous with communication because technology has historically been the method by which communication to or by the general population takes place.

標簽： Implementing 802.11

上傳時間： 2020-05-27

上傳用戶：shancjb
IP Multimedia Subsystem(IMS) Handbook

Fixed-mobile.convergence.and.voice-data.networks.have.merged.next-gen- eration,.value-added.applications.and.integrated.multimedia.services,.com- bining. Web. browsing,. instant. messaging,. presence,. voice. over. IP,. video. conferencing,. application. sharing,. telephony,. unified. messaging,. multi- media.content.delivery,.etc..on.top.of.different.network.technologies..The. convergence.of.the.communications.networks.is.motivated.by.the.need.to. support.many.forms.of.digital.traffic.as.well.as.to.amortize.implementation. and.operational.costs.of.the.underlying.networks..historically,.the.approach. to. build. and. deploy. multimedia. services. has. focused. upon. single-point. solutions..

標簽： Multimedia Subsystem Handbook IMS IP

上傳時間： 2020-05-27

上傳用戶：shancjb

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