Ugk的《Heaven》 歌词
歌曲名:Heaven歌手:Ugk专辑:Ugk (Underground Kingz)Tell Me have u heard the storythat took place not long agobout an angel love in heaventhey say she up and ran away from homeword is she had unfinished businessso back on earth she had to fleewell you know i'm so elatedbecause she's layin right here next to meand when the lord woke up that morninand he called,called out her nameand when she did'nt answerHeaven Will Never ever ever beheaven will never be the same.....Never be the same..Verse 2Always dreamed that it would happenjust did'nt know exactly whenall my life i've been waiting...forsomething amazingYes it took a while but now i knowSo tell me can i get a witnessif you believe in miraclesand the proof i have is livingAnd my life will never ever be....your life dont have to be.....Bridgeat times it seems we take for granted...how precious life can be....jus hold on and i'll prove how oustandingbringing into this world a precious boy or a girland when god woke up that morningsaid where has my little angel gone?and when she did'nt answer heaven willnever ever ever beHeaven will Never Be the Same.....yeah Yeah Yeahhttp://music.baidu.com/song/9142000
东海岸说唱和西海岸说唱带头人物
西岸元祖是dr.dre eminem,50cent,snoop dogg都是他带出来的和他一起的还有ice cube，和他以前一个乐队的带头人物easy-e，只是后来挂了西海岸乃至说唱界最强的是2pac，但是96年被枪杀了还有50cent的死对头the game也算是强了吧，曾经一度挑起西海岸的大梁最老的还是80年的gangsta rap的创始人iceT了还有snoop dogg的两个好友xzibit和nate dogg一个是超级制作人一个事哼唱式rap 东岸的现在主要是jay-z还有他的子对头nas被称为纽约诗人以前2pac的死敌notorious B.I.G在2pac死去6个月后也离开了人世，他们俩的争斗也是东西海岸的争斗，但是在dr.dre等人的努力下化解了东西部的矛盾。jay-z也可以说是他小弟吧- -因为diss jay-z的人是这么说的还有一些匪帮说唱歌手jadakiss，twista和fat jeo什么的都不错对东海岸的不太了解，只能写这么多了 现在南部也是在不断进步的，不得不提下南部的元祖是master P，也是南部匪帮说唱的元祖现在南部最强是才刚刚出道就宣称自己是king的国王T.I.，他现在真的是南部的国王了比他实力稍稍逊色的lil wayne也不错还有master P的弟弟C-murder还有匪帮说唱组合UGK 就这么多了
McCoy Tyner的《Uptown》 歌词
歌曲名:Uptown歌手:McCoy Tyner专辑:Inner VoicesDrake - Uptown (Featuring Bun B And Lil' Wayne)(Lil Wayne:)Yeah, uh-huh(Drake:)Uh, hardly home but always reppin,You hardly on and always second,When I'm awake you always restin,And when they call you the answer you will hardly question,I, I'm doin classic shit in all my sessions,Other nigga's situations they are all depressin,That's why I never follow y'all suggestions,I just always did my own thing,Now I run the game, you stupid muddasuckasI see all this money through my ohio state buck eyes,Shippin goin good, but good can turn to better,Cause you the type to lose her, and I'm about to get her(Chorus:)It's okay (x6)You can run an tell your friends thatI'm on (x6)Best believe I understandIt's okay (x6)You can run an tell my cityI'm on (x6)You can run an tell my city it's on(Drake:)Yeah, wrong way down the one way,Women don't get saved round me even on a sunday,Damn where I get it from, these niggas always wonder who,Then they meet my pop and tell 'I'm ''Drake is just a younger you'',And shawty wanna party so don't let yo girl up out the houseOr there'll be shots on TMZ, of me givin her mouth-to-mouth,Now she's famous and the paparazzi starts to shoot her,I drop two black cars I named 'em Malcom X an Martin LutherI don't ever play but I'm in the game lady,They just loose to love, those are tennis games lady,Have you countin money goin dufflebag-crazy,Sippin on Pink Floyd an puffin Wayne Brady,Damn, who's line is it anyways,I'm in the daze, you been amazed,Y'all seem to be stuck on that beginner stage,I'm on fire yup I've been a blaze,I got dough to blow, but I wanna blow it right,You look nice, and yo frame, makes me wanna bowl a strikeWell alright, guess I might, know what fuck it yes I will,I am more than what you bargained for and nothin less than realPut it to you right(Chorus:)It's okay (x6)You can run an tell your friends thatI'm on (x6)Best believe I understandIt's okay (x6)You can run an tell my cityI'm on (x6)You can run an tell my city it's on(Bun B:)Bun B King of the Trill also one of the dopest,Whether the streets or on the mic, I'm dope and yes I'm focused,The gangsta recognize me for my locc ness no joke it's,Time to shake these haters off like the skin of a Locus,Or maybe like a python that's the type a shit I'm on,I wrote this on my iPhone so let me drop this ibomb, I palmThe game like it's a spalding ball and take flightFrom the free-throw line and slam it down like I'm the great mike,Bun an Wayne an Drake in here man this gon be a great night,Look at all these posers bite our swagger like a great white,Try to cross me over I just fake left then I break right,Stupid animal tricks like David Letterman's Late Night,This that major moment you've been waitin on for too long,The best that ever did it an doin it on a new song,UGK an Young Money too strongDown in the green like a crouton, so what the fuck is you on?(Chorus:)It's okay (x6)You can run an tell your friends thatI'm on (x6)Best believe I understandIt's okay (x6)You can run an tell my cityI'm on (x6)You can run an tell my city it's on(Lil Wayne:)I am the leather jacket, black glasses, all american bad boyI own the swagger supermarket an you, you just a bag boyCause I got that swag boy, the swag you neva had boyHate an I will leave ya chest the color of my flag boySuuwuup bitch, I do this shit, I'll erase you like I drew you bitchAn I keep that toaster you can come an be my strudel biiiitchI'm so uptown, an mothafucker if you ain't do go uptown,yeahAnd now I'm on that rock-shitBut why they let me in I'm a start shootin at a mosh pit, hahaFuck is you talkin bout, weezy in ya mouth nowWeezy whatchu talkin bout(Chorus:)It's okay (x6)You can run an tell your friends thatI'm on (x6)Best believe I understandIt's okay (x6)You can run an tell my cityI'm on (x6)You can run an tell my city it's onhttp://music.baidu.com/song/8154379
三极管MCR100-6是什么三极管
三极管MCR100-6是单向可控硅三极管
单向可控硅特点
先进的玻璃钝化芯片、具有灵敏的控制极触发电流，通态压降低。
用途
普通晶闸管最基本的用途就是可控整流。大家熟悉的二极管整流电路属于不可控整流电路。如果把二极管换成晶闸管，就可以构成可控整流电路。
以最简单的单相半波可控整流电路为例
在正弦交流电压U2的正半周期间，如果VS的控制极没有输入触发脉冲Ug，VS仍然不能导通，只有在U2处于正半周，在控制极外加触发脉冲Ug时，晶闸管被触发导通。画出它的波形(c)及(d)，只有在触发脉冲Ug到来时，负载RL上才有电压UL输出。Ug到来得早，晶闸管导通的时间就早;Ug到来得晚，晶闸管导通的时间就晚。通过改变控制极上触发脉冲Ug到来的时间，就可以调节负载上输出电压的平均值UL。
在电工技术中，常把交流电的半个周期定为180°，称为电角度。这样，在U2的每个正半周，从零值开始到触发脉冲到来瞬间所经历的电角度称为控制角α;在每个正半周内晶闸管导通的电角度叫导通角θ。很明显，α和θ都是用来表示晶闸管在承受正向电压的半个周期的导通或阻断范围的。通过改变控制角α或导通角θ，改变负载上脉冲直流电压的平均值UL，实现了可控整流。
1:小功率塑封双向可控硅通常用作声光控灯光系统。额定电流:IA小于2A。
2:大;中功率塑封和铁封可控硅通常用作功率型可控调压电路。像可调压输出直流电源等等。
3:大功率高频可控硅通常用作工业中;高频熔炼炉等
大家帮忙找一首歌哦,有点英式摇滚,男声
1. White Lines (Don't Do It) - Grandmaster Flash & The Furious Five
2. Walk This Way - Run DMC & Aerosmith
3. Rappers Delight - Sugar Hill Gang
4. Fight The Power - Public Enemy
5. Fight For Your Right - Beastie Boys
6. Gangsta's Paradise - Coolio
7. Planet Rock - Afrika Bambatta
8. The Message - Grandmaster Flash & The Furious Five
9. Killing Me Softly - The Fugees
10. Stan - Eminem
11. I'll Be Missing You - Puff Daddy
12. California Love - 2Pac
13. Cop Killa - Ice T
14. The Rain (Supa Dupa Fly) - Missy Elliott
15. I Need Love - LL Cool J
16. Doo Wop (That Thing) - Lauryn Hill
17. Push It - Salt-N-Pepa
18. Mama Said Knock You Out - LL Cool J
19. Ms. Jackson - Outkast
20. Work It - Missy Elliott
21. Nuthin But A 'G' Thang. Dr. Dre
22. People Everyday - Arrested Development
23. 99 Problems - Jay Z
24. Crossroads - Bone Thugs-N-Harmony
25. Mo Money Mo Problems - Notorious B.I.G.
26. Summertime - DJ Jazzy Jeff & The Fresh Prince
27. Country Grammer - Nelly
28. Gin & Juice - Snoop Dogg & Dr. Dre
29. In Da Club - 50 Cent
30. Stop The Violence Movement - Self Destruction
31. Hey Ya - Outkast
32. Everything Is Everything - Lauryn Hill
33. Mind's Playing Tricks On Me - Geto Boys
34. Looking For The Perfect Beat - Afrika Bambatta
35. No Sleep Till Brooklyn - Beastie Boys
36. Big Poppa - Notorious B.I.G.
37. U-N-I-T-Y. Queen Latifah
38. It's Tricky - Run DMC
39. I used to love h.e.r. - Common
40. Gettin Jiggy Wit It - Will Smith
41. Excursion - A Tribe Called Quest
42. Black Steel In the Hour of Chaos - Public Enemy
43. Baby Got Back - Sir Mix-A-Lot
44. Real Love - Mary J. Blige
45. The Magic Number - De La Soul
46. Hard Knock Life - Jay Z
47. Straight Outta Compton - N.W.A.
48. Bridge is Over - Boogie Down Productions
49. On and On - Erykah Badu
50. The Way I Am - Eminem
51. Rock Box - Run DMC
52. New Jack Hustler - Ice-T
53. One Minute Man - Missy Elliott
54. Me, Myself and I - De La Soul
55. We're All In The Same Gang - West Coast Rap All-Stars
56. Hot In Herre - Nelly
57. My Adidas - Run DMC
58. Roxannes Revenge - Roxanne Shante
59. AmeriKKKa's Most Wanted - Ice Cube
60. Say No Go - De La Soul
61. Just A Friend - Biz Markie
62. One More Chance - Notorious B.I.G.
63. Funkee Ko Medina - Tone Loc
64. Rebel Without A Pause - Public Enemy
65. Love of My Life - Erykah Badu
66. Whatta Man - Salt-N-Pepa & En Vogue
67. I Know You Got Soul - Eric B. & Rakim
68. Creep - TLC
69. Childrens Story - Slick Rick
70. 2 Legit 2 Quit - MC Hammer
71. Brown Skin Lady - Mos Def
72. Welcome to the Terrordome - Public Enemy
73. Dear Mama - 2Pac
74. Woo-Ha!! Got You All In Check - Busta Rhymes
75. Big Pimpin' - Jay-Z
76. Bonita Applebum - A Tribe Called Quest
77. No More Drama - Mary J. Blige
78. Ready or Not - The Fugees
79. Jesus Walks - Kanye West
80. Love Is Blind - Eve
81. Lyte As A Rock - MC Lyte
82. Eye Know - De La Soul
83. Raw - Big Daddy Kane
84. It Was A Good Day - Ice Cube
85. Parents Just Don't Understand - DJ Jazzy Jeff & The Fresh Prince
86. Scenario - A Tribe Called Quest
87. To Beat Ya'll - Lady B
88. I'm Still Number One - Boogie Down Productions
89. Put Your Hands Where My Eyes Can See - Busta Rhymes
90. Bust A Move - Young MC
91. Don't Sweat The Technique - Eric B. & Rakim
92. Freaks Come Out At Night - Whodini
93. Wild Thing - Tone Loc
94. The Real Slim Shady - Eminem
95. How Ya Like Me Now - Kool Moe Dee
96. C.R.E.A.M. - Wu Tang Clan
97. Boyz-N-The Hood. Eazy E
98. Vapors - Biz Markie
99. The Humpty Dance - Digital Underground
100. Express Yourself - N.W.A.
最伟大的100首摇滚单曲
01.Led Zeppelin - Stairway to Heaven
02.Van Halen - Eruption
03.Lynyrd Skynyrd - Free Bird
04.Pink Flyod - Comfortably Numb
05.Jimi Hendrix - All Along The Watch Tower
06.Guns n' Roses -November Rain
07.Metallica - One
08.Eagles - Hotel California
09.Ozzy Osbourne - Crazy Train
10.Cream - Crossroads
11.Jimi Hendrix - Voodoo Chile
12.Chuck Berry - Johnny b Goode
13.Stevie Ray Vaughan - Texas Flood
14.Eric Clapton - Layla
15.Pantera - Floods
16.Led Zeppelin - Heartbreaker
17.Eric Johnson - Cliffs of Dover
18.Jimi Hendrix - Little Wing
19.Deep Purple - Highway Star
20.Queen - Bohemian Rhapsody
21.Pink Floyd - Time
22.Dire Dtraits - Sultans of Swing
23.Ratm - Bulls on Parade
24.Mettalica - Fade to Black
25.Jetro Tull - Aqualung
26.Nirvana - Smells Like Teen spirit
27.Stevie Ray Vaughan - Pride and Joy
28.Ozzy Osbourne - Mr. Crowley
29.Steve Vai - For the Love of God
30.Joe Satriani - Surfing With The Alien
31.Ted Nuggent - Stranglehold
32.Jimi Hendrix - Machine Gun
33.B.B king - The Thrill Is Gone
34.Radiohead - Paranoid Android
35.Pantera - Cemetery Gates
36.Yngwie Malmsteen - Black Star
37.Guns n' Roses - Sweet Child OF Mine
38.Led Zeppelin - Whole Lotta Love
39.Neil Young - Cortez The Killer
40.Steely Dan - Reeling In the Years
41.Queen - Brighton Rock
42.Beatles - While My Guitar Gently Weeps
43.ZZ Top - Sharp Dressed Man
44.Pearl Jam - Alive
45.The Doors - Light My Fire
46.Van Halen - Hot For Teacher
47.The Allman Brothers Band - Jessica
48.The Rolling Stones - Sympathy For The Devil
49.Santana - Europa
50.Kiss - Shock Me
51.Metallica - Master of Puppets
52.Jimi Hendrix - Star Spangled Banner
53.Led Zeppelin - Since I've Been Loving You
54.Smashing Pumpkins - Geek USA
55.Joe Satriani - Satch Boogie
56.Black Sabath - War Pigs
57.Pantera - Walk
58.Eric Clapton - Cocaine
59.Ozzy Osbourne - No More Tears
60.The Kinks - You Really Got Me
61.Frank Zappa - Zoot Allures
62.Pink Floyd - Money
63.Soundgarden - Black Hole Son
64.Prince - Little Red Corvette
65.Nirvana - In Bloom
66.The Allman Brothers Band - Blue Sky
67.Michael Jackson - Beat It
68.Yes - Starship Trooper
69.Beatles - And Your Bird Can Sing
70.Jimi Hendrix - Purple Haze
71.Funkadelic - Maggot Brain
72.Aerosmith - Walk This Way
73.Phish - Stash
74.Deep Purple - Lazy
75.The Who - Won't Get Fooled Again
76.Neil Young - Cinamon Girl
77.Alice in Chains - Man In The Box
78.Greatful Dead - Truckin
79.Van Halen - Mean Street
80.AC-DC - You Shook Me All Night Long
81.Lou Reed - Sweet Jane
82.King Crimson - 21st Century Schizoid Man
83.Stevie Ray Vaughn - Scuttle Buttin
84.Sublime - Santeria
85.David Bowie - Moonage Daydream
86.The Alman Brothers - Whipping Post
87.Living Colour - Cult of Personality
88.Steeley Dan - Kid Charlemagne
89.Rage Against the Machine - Killing In The Name
90.Eric Clapton - Let It Rain
91. Heart It Through The Grapev
92.Stray Cats - Stary Cat Strut
93.The Doors - The End
94.Rush - Working Man
95.Pearl Jam - Yellow Ledbetter
96.The Rolling Stones - Honky Tonk Women
97.Smashing Pumpkins - Cherub Rock
98.Dreamtheater - Under A Glass Moon
99.Jeff Beck - Cause We Ended As Lovers
100.Janes Addiction - Three Days
最伟大的100首英文歌曲
01.the beatles-yesterday
02.rolling stones-satisfaction
03.nirvana-smells like teen spirit
04.madonna-like a virgin
05.michael jackson-billie jean
06.the beatles-i want to hold your hand
07.aretha franklin-respect
08.u2-with or without you
09.the jackson-i want you back
10.backstreet boys-i want it that way
11.the eagles-hotel california
12.the supremes-where did our love go
13.guns n' roses-sweet child o' mine
14.the rolling stones-brown sugar
15.john lennon-imagine
16.sinead o connor-nothing compares to you
17.stevie wonder-superstition
18.r.e.m.-losing my religion
19.madonna-vogue
20.bob dylan-like a rolling stone
21.van morrison-brown eyed girl
22.michael jackson-beat it
23.roy orbison-oh, pretty woman
24.marvin gaye-what's going on
25.britney spears-baby one more time
26.fleetwood mac-go your own way
27.prince-when doves cry
28.hanson-mmmbop
29.queen-bohemian rhapsody
30.elton john-your song
31.santanaf rob thomas-smooth
32.tis redding-the dock of the bay
33.the who-my generation
34.alanis morissette-ironic
35.bruce springsteen-born to run
36.tlc-waterfalls
37.o.p.p.-naughty by nature
38.david bowie-changes
39.goo goo dolls-iris
40.whitney houston-i will always love you
41.creedance clearwater revival-proud mary
42.the police-every breath you take
43.rolling stones-miss you
44.abba-dancing queen
45.eric clapton-tears in heaven
46.smokey robinson-the tracks of my tears
47.van halen-jump
48.pearl jam - jeremy
49.bob dylan-tangled up in blue
50.prince-little red corvette
51.the temptations-just my imagination
52.paul mccartney-maybe i'm amazed
53.george micheal-faith
54.red hot chili peppers-under the bridge
55.n'sync-bye bye bye
56.gloria gaynor-i will survive
57.the go gos-our lips are sealed
58.the wallflowers-one headlight
59.stevie wonder-you are the sunshine of my life
60.billy joel-just the way you are
61.rem-the one i love
62.madonna-papa don't preach
63.the beatles-in my life
64.elton john-bennie and the jets
65.the cars-just what i needed
66.cyndi lauper-time after time
67.eminem-my name is
68.garbage-only happy when it rains
69.depeche mode-just can't get enough
70.beach boys-good vibrations
71.romones-i wanna be sedated
72.tom petty-free fallin''
73.culture club-do you really want to hurt me
74.elton john-tiny dancer
75.sly and family stone-hot fun in the summer time
76.radiohead-creep
77.al green-lets stay together
78.green day-longview
79.janet jackson-nasty
80.ll cool j-i need love
81.no doubt-don't speak
82.michael jackson-rock with you
83.foreigner-i want to know what love is
84.oasis-wonderwall
85.cheap trick-surrender
86.human league-don''t you want me
87.pretenders-brass in pocket
88.wyclef jean-gone till november(acoustic)
89.wham-careless whispers
90.brandy and monica -that boy is mine
91.black street & dr. dre
92.acdc-you shook me all night long
93.bee gees-stayin' alive
94.blink 182-all the small things
95.chic-good times
96.def leopard-photograph
97.b-52's-love shack
98.fine young cannibals-she drives me crazy
99.biz markie-just a friend
100.soft cell-tainted love
2PAC最经典的歌曲是什么？拜托各位了 3Q
Tupac--终极纪念（10首2PAC最伟大的歌曲） 1.《I dont give a fuck》---出自《2Pacalypse Now》1991 类似于NWA的俱乐部热门歌曲。其中的世界观在美国家长群体中引起强烈的争议。甚至当时的副总统Dan.Q也在总统竞选中批评他的专集。 2.《I get around》--出自《Strictly 4 my NIGGAZ》1993 挤身美国榜TOP 20的非凡歌曲，这是与之前所工作过的Digitial underground的合作，这支手MTV欢迎的录影带展示了他天生的魅力。 3.《Dear Mama》--出自《Me against the world》1955 这是2PAC自传性的歌曲，混合了对自己单身母亲勇气的致敬，和对毒瘾牢狱的坦白回忆。 4.《If I die 2Nite》--出自《Me against the world》1955 关于死亡的十足而有力的沉思，就像Tupac经常做的那样，把他自己描绘成牺牲品。 5.《Hit EM up》--出自《Greatest Hits》2001 1995年代表性的“Diss”歌曲，直截了当地侮辱了无数的东海岸说唱歌手，其中包括P.Diddy和Biggie。 6.《California Love》--出自《All Eyez on Me 》1996 这张单曲使得Tupac确立了超级巨星的地位，这也要感谢Dr.Dre的制作以及Roger“Zapp”Troutman。在这之后，美国的青少年都想成为匪帮。 7.《Life goes on》--出自《All Eyez on Me 》1996 Tupac伟大的吟诵死亡的歌曲，这是一曲街头的叙事诗。他在其中像年轻时的岁月告别，以幻想自己的葬礼作为结尾。 8.《2 of Amerikaz Most Wanted》--出自《All Eyez on Me 》1996 由Death Row老板Suge Knight策划的Snoop和Tupac的合唱，他希望自己手下最红的两位艺人来打造一场“匪帮派队”。 9.《Hail Mary》--出自《The Don Killuminati-The 7Day Theroy》1996 这是死后出版唱片中的第一个伟大时刻，卷绕的歌词和怪诞的制作让我们明白了Tupac为何是Eminem的英雄。 10.《Runnin’（Dying to live）》--出自《2Pac Resurrection》2003 Eminem把Tupac称作前所未有最伟大的词曲作者，他在2004重新制作了许多他死后才出版的作品。
五笔常用千字
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在电压源电路中电流到底是怎么流的？为什么和电池的符号是反的？
电源分为电压源与电流源。
电流源输出电流不变、电流方向不变，两端电压由外电路决定。
电压源两端电压不变，电流方向由外电路决定。如电池充电时电流从正极流入。
电池属于电压源。
上图都是电压源与电阻构成，不存在电流源，所以电流方向是已知数，电流从电源正极输出。
左图 i 为正值，右图 i 为负值。i 是参考方向，可以任意设定。
http://wenku.baidu.com/view/1a26938d8762caaedd33d4bc.html
弗兰克赫兹实验的问题，在线等答案。
2 答：.IA、Vg2k依次连接到示波器的同步输入端（Ext.Input）和信号输入端（CH1）
不需要，因为示波器内部扫描电压的作用是在荧光屏上显示一个周期性的水平位移，即形成时间基线，把垂直方向上的被测信号变化波展现在荧光屏上，但本试验不研究IA随时间的变化，而是随Vg2k变化的波形，故不需要。
3 答：灯丝电位低，阴极发射电子的能力减小，使得在碰撞区发生的碰撞减少，检测的电流减小，给检测带来困难，从而使曲线分辨率下降；灯丝电位高，阴极发射电子的能力增加，引起逃逸电子增多，相邻峰、谷的差值减小。故：2V时，曲线接近横轴，即幅值较小；4V时，曲线幅值总体较高，但幅值变化小。
晶闸管导通的条件是什么？维持晶闸管导通的条件是什么？怎样才能使晶闸管由导通变为关断？
使晶闸管导通的条件是：晶闸管承受正向阳极电压，并在门极施加触发电流（脉冲），UAK>0且UGK>0。维持晶闸管导通的条件是使晶闸管的电流大于能保持晶闸管导通的最小电流，即维持电流。 来源：输配电设备网。要使晶闸管由导通变为关断，可利用外加电压和外电路的作用使流过晶闸管的电流降到接近于零的某一数值以下，即降到维持电流以下，便可使导通的晶闸管关断。晶闸管的分类晶闸管按其关断、导通及控制方式可分为普通晶闸管（SCR）、双向晶闸管（TRIAC）、逆导晶闸管（RCT）、门极关断晶闸管（GTO）、BTG晶闸管、温控晶闸管（TT国外，TTS国内）和光控晶闸管（LTT）等多种。晶闸管按其引脚和极性可分为二极晶闸管、三极晶闸管和四极晶闸管。晶闸管按其封装形式可分为金属封装晶闸管、塑封晶闸管和陶瓷封装晶闸管三种类型。其中，金属封装晶闸管又分为螺栓形、平板形、圆壳形等多种；塑封晶闸管又分为带散热片型和不带散热片型两种。晶闸管按电流容量可分为大功率晶闸管、中功率晶闸管和小功率晶闸管三种。通常，大功率晶闸管多采用陶瓷封装，而中、小功率晶闸管则多采用塑封或金属封装。
