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開關(guān)電源類書籍：SWITCH-Mode Power Supply Simulation^Designing with SPICE 3.pdf ·
標(biāo)簽：
SWITCH-Mode
Simulation
Designing
Supply
上傳時(shí)間：
2013-11-20
上傳用戶：aa17807091
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For many years prior to the 1970s, engineers designed and built switch mode
power supplies (SMPSs) using methods based largely on intuitive and exper-
imentally derived techniques. In general, these power supplies were able to
achieve their primary goal of high-efficiency power conversion; unfortu-
nately, due to the lack of adequate theoretical analysis techniques, many of
these power supplies only marginally met their desired performance require-
ments. In many cases, they were considered to be unreliable.
標(biāo)簽：
Supplies
Switch
Power
Mode
上傳時(shí)間：
2020-06-07
上傳用戶：shancjb
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SWITCH-Mode Power Supply
標(biāo)簽：
SWITCH-Mode
Supply
Power
上傳時(shí)間：
2020-06-07
上傳用戶：shancjb
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The TL2575 and TL2575HV represent superior alternatives to popular three-terminal linear regulators. Due totheir high efficiency, the devices significantly reduce the size of the heatsink and, in many cases, no heatsink isrequired. Optimized for use with standard series of inductors available from several different manufacturers, theTL2575 and TL2575HV greatly simplify the design of SWITCH-Mode power supplies by requiring a minimaladdition of only four to six external components for operation.
標(biāo)簽：
STEP-DOWN
SWITCHING
SIMPLE
1A
上傳時(shí)間：
2013-11-20
上傳用戶：jelenecheung
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Thepredecessorvolumeofthisbookwaspublishedin1996.Intheyears
since then, some things have changed and some have not.
Two of the things that have not changed are the desire for better
models and faster simulations. I performed the original simulations on
my “hyperfast” 133-MHz computer! At the time, I thought if I could just
getafastercomputer,allofourSPICEproblemswouldbehistory,right?
TodayIamsimulatingonacomputerthathasa2.6-GHzprocessorwith
512 MB of RAM, and I would still say that simulations run too slow.
The computer technology has evolved, but so have the models. In 1996
wewereperformingsimulationson100-kHzpowerconverters,whereas
today I routinely see 1- and 2-MHz power converters.
標(biāo)簽：
SWITCH-Mode
Simulation
Supply
Power
上傳時(shí)間：
2020-06-07
上傳用戶：shancjb
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The PW2312 is a high frequency, synchronous, rectified, step-down, SWITCH-Mode converter withinternal power MOSFETs. It offers a very compact solution to achieve a 1.5A peak output currentover a wide input supply range, with excellent load and line regulation.The PW2312 requires a minimal number of readily available, external components and is available ina space saving SOT23-6 package.
標(biāo)簽：
pw2312
上傳時(shí)間：
2022-02-11
上傳用戶：qingfengchizhu
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The PW2163D is a high frequency, synchronous, rectified, step-down, SWITCH-Mode converter withinternal powerMOSFETs. It offers a very compact solution to provide a 3A continuous current over awide input supply range,with excellent load and line regulation.The PW2163D requires a minimal number of readily available, external components and is availablein a spacesaving SOT23-6 package
標(biāo)簽：
pw2163d
上傳時(shí)間：
2022-02-11
上傳用戶：
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MOSFET和IGBT內(nèi)部結(jié)構(gòu)不同, 決定了其應(yīng)用領(lǐng)域的不同.1, 由于MOSFET的結(jié)構(gòu), 通常它可以做到電流很大, 可以到上KA,但是前提耐壓能力沒有IGBT強(qiáng)。2,IGBT 可以做很大功率, 電流和電壓都可以, 就是一點(diǎn)頻率不是太高, 目前IGBT硬開關(guān)速度可以到100KHZ,那已經(jīng)是不錯(cuò)了. 不過相對(duì)于MOSFET的工作頻率還是九牛一毛,MOSFET可以工作到幾百KHZ,上MHZ,以至幾十MHZ,射頻領(lǐng)域的產(chǎn)品.3, 就其應(yīng)用, 根據(jù)其特點(diǎn):MOSFET應(yīng)用于開關(guān)電源, 鎮(zhèn)流器, 高頻感應(yīng)加熱, 高頻逆變焊機(jī), 通信電源等等高頻電源領(lǐng)域;IGBT 集中應(yīng)用于焊機(jī), 逆變器, 變頻器,電鍍電解電源, 超音頻感應(yīng)加熱等領(lǐng)域開關(guān)電源 (Switch Mode Power Supply ；SMPS) 的性能在很大程度上依賴于功率半導(dǎo)體器件的選擇，即開關(guān)管和整流器。雖然沒有萬全的方案來解決選擇IGBT還是MOSFET的問題，但針對(duì)特定SMPS應(yīng)用中的IGBT 和 MOSFET進(jìn)行性能比較，確定關(guān)鍵參數(shù)的范圍還是能起到一定的參考作用。本文將對(duì)一些參數(shù)進(jìn)行探討，如硬開關(guān)和軟開關(guān)ZVS ( 零電壓轉(zhuǎn)換) 拓?fù)渲械拈_關(guān)損耗，并對(duì)電路和器件特性相關(guān)的三個(gè)主要功率開關(guān)損耗—導(dǎo)通損耗、傳導(dǎo)損耗和關(guān)斷損耗進(jìn)行描述。此外，還通過舉例說明二極管的恢復(fù)特性是決定MOSFET或 IGBT 導(dǎo)通開關(guān)損耗的主要因素， 討論二極管恢復(fù)性能對(duì)于硬開關(guān)拓?fù)涞挠绊憽?dǎo)通損耗除了IGBT的電壓下降時(shí)間較長外， IGBT和功率MOSFET的導(dǎo)通特性十分類似。由基本的IGBT等效電路（見圖1）可看出，完全調(diào)節(jié)PNP BJT集電極基極區(qū)的少數(shù)載流子所需的時(shí)間導(dǎo)致了導(dǎo)通電壓拖尾（ voltage tail ）出現(xiàn)。
標(biāo)簽：
mosfet
igbt
上傳時(shí)間：
2022-06-21
上傳用戶：
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引言開關(guān)電源（SMPS：Switch Mode Power Supply）是利用現(xiàn)代電力電子技術(shù)，控制開關(guān)管開通和關(guān)斷的時(shí)問比率，維持穩(wěn)定輸出電壓的一種電源·非隔離式DC/DC變換具有六種基本拓?fù)浣Y(jié)構(gòu)：降壓（Buck）變換器升壓（Boost）變換器極性反轉(zhuǎn)升降壓（Buck2Boost）變換器Cuk（Boost2Buck 聯(lián)）變換器Sepic變換器Zeta變換器[-1，與線性電源相比，開關(guān)電源具有體積小重量輕效率高自身抗干擾性強(qiáng)輸出電壓范圍寬模塊化等優(yōu)點(diǎn)。LTspice IV是LT公司推出的SPICE電路仿真軟件，具有集成電路圖捕獲和波形觀測功能。LTspice IV內(nèi)置新型SPIE元件，能快速進(jìn)行SMPS交互式仿真，且無元件或節(jié)點(diǎn)數(shù)目的限制.LTspice IV雖然與開關(guān)模式電源設(shè)計(jì)配合使用，但它并不是SMPS專用型SPICE軟件，而是一款通用型SPICE-LTspice IV內(nèi)置了LT公司新型SPARSE矩陣求解器，采用專有的并行處理方法，實(shí)現(xiàn)了對(duì)任務(wù)的高效并行處理"。
標(biāo)簽：
ltspice
開關(guān)電源
上傳時(shí)間：
2022-06-26
上傳用戶：
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計(jì)時(shí)器
Run mode:
* - stop
0 - switch on backlight
# - suspend/resume
joystick - set next result
1-9 - set result for member with this number
Inspect mode:
*,#,0 - reset and start
UP,LEFT - show previous result
1-9 - show result for member with this number
標(biāo)簽：
backlight
joystick
suspend
resume
上傳時(shí)間：
2013-12-12
上傳用戶：6546544
