Thyristors - He aha ka keia? I ka rula o ka hana a me nā 'ano o nā thyristors

Thyristors - he mana lolouila mea hoʻololi hoi malalo o ko incompletely. Pinepine, oaoieei-buke, e hiki ke ike i kekahi inoa o keia mea - hookahi-manao thyristor. Ma nā hua'ōlelo, ma lalo o ka aoao o ka hooponopono ana neaiaea, ka mea, ua hoolilo ia kekahi moku'āina - e mālama nei. Inā hou kekahi, ia ka loaʻa o ke kaulahao. I ka mea i huliʻia, ka mea i pono, e hana kūikawā ana i hoomakaukau i papa pololei kala pono i loko o ke kaapuni ana i 'Aʻohe.

hiʻona thyristors

Thyristor ki hana uila wale nō i loko o ka mua, hema, a me ka mea hiki ke ku imua o ole wale 'ana i loko o ka paʻa kulana, akā, i ka nana e hoole anakahi uila. Ka 'ole o ka eha-, ahu iho thyristor, eia ekolu hopena a:

1. Ke anode (denoted ma ka palapala A).
2. Ke cathode (palapala C a me K).
3. Ka puka'ūholo uila (U a G).

Ma thyristors i ka ohana a pau o kaʻikena-anakahi uila ano, ka mea hiki ke hoʻohana 'ia e hoahewa aku i ka moku'āina o ka hehee ai. Thyristors - he loa ikaika lolouila ki, e hiki ke lawe mai ka hoʻololiʻana i puhi ai, he anakahi uila e hiki i 5,000 volts a me ka amperage ka mea, - 5000 amperes (ka alapine mea i oi aku mamua o 1000 Hz).

Hana thyristors ma DC

Normal thyristor ua ho'ā 'ia paha ma ka haawi i kaʻikena pāpaʻa i ka hooponopono ana maʻi. Eia hoʻi, he mea pono e maikaʻi (me ka pili ana i ka cathode). Ka lōʻihi like 'ole o ka transient haawe e kaukaʻi ano (inductive,ʻeleu), i ka ikaika hawewe a me ka uku o ke ala o ka he pāpaʻa i loko o ke ana huakai kaapuni, i ka wela o ka mea uholo uila aniani, a me ka noi anakahi uila, a he puni i loaʻa thyristors. Ano kaapuni mea pololei e kaukaʻi ma ke ano o ka mea uholo uila hehee ai.

Ma ia huakai kaapuni, ai ka thyristor mea, unacceptably kiʻekiʻe hanana uku o ke anakahi uila ala. ʻo ia, e like ka nui ma i ka noho'na makaainana i ulu ka hoʻololiʻana hehee ai (a hiki ina ole hōʻailona i loko o ka mana huakai kaapuni). Akā, i ka mea ia manawa i loko o ka mana neaiaea pono e kiʻekiʻe loa hene.

aoao aku

Elua ano o ka hoʻololiʻana thyristors i:

1. Natural.
2. Mea, hoʻoikaika ihola.

Ano, i hou au mamuli e pili ana i kela a me keia. Natural aicieeaao ka wā o ka thyristor hana i loko o ka AC huakai kaapuni. A i keia commutation ka wā o kaʻikena hina e 'Aʻohe. Akā, e lawe mai i ka mea, hoʻoikaika ihola ka hoʻololiʻana hiki e ka hailona no naʻano likeʻole. He aha thyristor hooponopono, e koho i kekahi mea haku polokalamu, e hoʻoponopono i ke kaapuni, akā, e kamailio e pili ana i kēlā me kēiaʻano kaawale.

Ka loa typicalʻaoʻao mea e hoʻohui i ka puʻe wale akula kēlā commutation mea pihana i i hoopiiia ma mua ma ka hoʻohana 'ana i kekahi pihi (kī). LC-kaapuni ua komo i loko o ka thyristor ana huakai kaapuni. Kēia kaula he i maopopo ia mea pihana. Transient fluctuations ana i loko o kaʻikena haawe huakai kaapuni.

Nā Papahana puʻe wale akula kēlā commutation

He nui na ano o ka hookupu commutation. Pinepine hoʻohana kaapuni, a hoʻohana i ka hoʻololiʻana mea pihana me ka nana e hoole polarity. No ka laʻana, ka mea pihana hiki ke ua hō'ā i loko o ka puni ma ka mea o ka kākoʻo thyristor. Kēia e i ka hookuuia a hiki i ka iniiaiie (hana) thyristor. Kēia, e 'ai pono i loko i ka mea pihana pono kauoha ma ka pololeiʻikena ka papa kuhikuhiE thyristor, e emi i ka pono ma ka huakai kaapuni ia i' Aʻohe. Nolaila, ma laila e e aku thyristor. Keia hana no ka mea, i ka thyristor lima kūlana kiʻekiʻe i kona mau ano e puni i ka ia.

Aia i kekahi manaʻo ma i LC-pili kaula. Ka mea, e hookuu (a me ka likeʻole). I ka hoʻomaka o ka hookuuia pono e kahe ana i ka hana, a me kā lākou mau loina ma hope o ka hoʻoponopono ua ua hō'ā aku thyristor. Ma hope o ke kaula gula o oscillatory pono kahe ana ma ka thyristor i loko o ka mea uholo uila diode. Penei, like loa me kaʻikena lua i pele i ka thyristor ua noi ke anakahi uila. It modulo like i ke anakahi uila e like ma ka diode.

Hana thyristors ma AC wahi i puhi ai

Inā he thyristor i komo i loko o ka AC kaapuni, hiki ke lawe mai ia mau hana:

1. E ho'ā i ole hoʻopio uila kaapuni me kaʻeleu-resistive a resistive haawe ana.
2. Change awelike a me rmsʻikena i hele ma ka haawe ana, a me ka hiki, e kū i ka lako hou hooponopono maika i.

Ma thyristor ki, he mea kekahi hiʻona - ka mea hana pono i loko o kekahi ao ao wale. Nolaila, ina ma na wahi i puhi ai e pono ai, e hoʻohana alternating pono, pono e pili loan-laua pilina. O kēia a me ka awelikaʻikena nā loina ke oko a ma muli o ia ka mea i ka manawa o ka neaiaea ma keʻano thyristors. Ma keia hihia, ke thyristor mana pono hālāwai i ka palena iki koi.

Ka pae hoʻoholo iaoiaeii

A hiki i ka pae ana ina hana like 'ano me ka mea, hoʻoikaika ihola ka hoʻololiʻana haawe hoʻoponopono ia lŘlŘ e hoʻololi i ka pana pua ma waena o nā kūlana. ʻimi hoʻopunipuni ka hoʻololiʻana hiki ke hana ma ka mea o kūikawā i puhi ai, ai ole oe e hoʻohana i ka maopopo e hoʻokele (lockable) thyristors. Ma kā lākou mau kumu, IeAUPIIe, IAa IO i mea kālā thyristor, a leie aku oe e hoʻomaʻa i ka ikaika o ka papa , ke kaumaha ma muli o ka nui o na pu ki uku ole.

Lāʻau ikiʻai wale ka laula pē hoʻoholo

Ua ua i kapa PWM modulation. Ma ka puka ana o ka hooponopono ana neaiaea lako i na thyristors. Mahele ma ua hamama, a i ka haawe anakahi uila. Ma panina (i ka pau hoʻololi kaʻina) ua hānai i ka hooponopono ana hoailona, nolaila thyristors mai i hoʻomakaʻikena. Ma ka hoʻokō 'ia ka pae ana he hālawa mea ole sinusoidal, he loli ma ka anakahi uila neaiaea palapala. Nolaila, he ua i loko nā mea kūʻai mai i nā ikepili koʻikoʻi i kiʻekiʻe alapine (frequency) ka haunaele (incompatibility i Konakele.). Simple manao i ka thyristor mea hoʻokonukonu, i ae ole pilikia e hoʻololi i ka makemake nui. A me ia mea i pono, e pili nunui Latro.

thyristors lockable

Thyristors - keia mea he loa ikaika lolouila mea hoʻololi i hoʻohana no ka hoʻololiʻana kiʻekiʻe voltages a me au. Akā, ma laila ka mea, i kekahi nunui flaw - kāpili e hooponopono. A ina ua hōʻike hewa, eia kahi mea akaka ia, e hoohuli aku i ka thyristor mea pono e hana ana ma lalo i e hoemi i Aʻohe ka pololeiʻikena e.

He kēia hiʻona auhau ia lakou i kekahi mau kapu ma luna o ka hoʻohana 'ana o thyristors, a complicates ka huakai kaapuni ma muli o ia mau mea. E pakele no ia drawbacks, ka kūikawā manao o na thyristors, a i laka neaiaea ma kekahi hooponopono'ūholo uila i ua ulu. Ka mea, i kapaʻia dvuhoperatsionnymi, a SafeSearch, thyristors.

I ka manao o ka thyristor huli-ae la i

Four-, ahu iho 'ole o ka pa-N-pa-N, mai ka thyristor i kona mau ano. Ka mea, e haawi aku ia lakou i 'okoʻa mai kaʻike mau thyristors. Ua e hele ai i ka piha hehee ai o ke ana. Ka papa-anakahi uila ano (kūpaʻa) no ka mea i alakai mai kuhikuhi ana o ka ia me ka mea o ka mea maʻamau thyristors. Eia ua pololei ma ke alaʻikena thyristor hiki ke hoʻouna i hiki hou ma ka waiwai. Akā, ka paleʻana kiʻekiʻe aʻe anakahi uila hana i loko o laka thyristors ua i ae nei. Nolaila, e pono e pili ana i loko o Anati-ia laua me ka mea uholo uila diode.

A ano hiʻona o ka ipuka huli-aku thyristor - he nui kulu ma mua voltages. I mea e hoʻokaʻawale, i ka waiho 'ana i ia auoiaea i ka hooponopono ana o ka ikaikaʻikena pāpaʻa (io, i loko o ka lākiō o ka 1: 5 a hiki i ka pololeiʻikena cia). Akā, wale i ka lāʻau ikiʻai wale laula e e like uuku me hiki - 10 ... 100 MS. Lockable thyristors i ka haʻahaʻa kali waiwai o ke anakahi uila a me kaʻikena ma mua mau. Ke koena unuhi o ma kahi o 25-30%.

'ano o nā thyristors

Luna i manaoia lockable, aka, aia no nae he nui ke ano o na mea uholo uila thyristors, i mea i oi i olelo ia. Ma ka loa kekahi mau? Ieoaeunoaa iauaeoia (ipu, mea hoʻololi, mana regulators) hana i kekahi mauʻano o thyristors. Somewhere koi 'ia e ke kāohi hana' ia e haawi i ka malamalama koko, laila, hoʻohana optotiristors. Kona hiʻona mea i ua hoʻohana 'ia ka mea uholo uila aniani i loko o ka mana kaapuni, i mea ikepili koʻikoʻi i ka malamalama. Kiko'î thyristors mea okoa, a pau o nā hiʻona i puni iā ia. No ia mea, ia mea e pono ai ma ka liʻiliʻi loa i loko o ka mau manaʻo o ka mea ano o semiconductors, loaʻa nō, a ma ka mea hiki ke hoʻohana. No laila, eia ka i ka holoʻokoʻa papa inoa, a me ka papa kuhikuhiE ano o kēlā me kēiaʻano.

1. Diode-thyristor. Like i keia hehee ai - ka thyristor ua pili i loko o Anati-laua mea uholo uila diode.
2. Shockley diode (diode thyristor). He hiki ke hele i loko o ka moku'āina o ka piha conduction, ina ka mea, mamua o ka kekahi anakahi uila kaʻilikai.
3. Triac (sym thyristor). Like paha - mau thyristors komo i loko o Anati-ia laua.
4. Thyristor mea hoʻololi hookeai kiʻekiʻe ka hoʻololiʻana holo oko ao (5 ... 50 MS).
5. Thyristors ka pāʻana FET. Oe hiki pinepine loaʻa i ka hana ma muli o MOS transistors.
6. 'ōnohi thyristors, a hoʻi iā ke kahe ana o ka malamalama.

I ka hoʻokō 'ana i ka mālama hehee ai

Thyristors - mea maalea, e hiki e noho pilikia ana i ka uku o ke ala o ka mua a me ka papa aku anakahi uila. No ka ia, like no me ka mea uholo uila diodes, wehewehe aku ma ka kŰia o ka pele o aʻe ke ola pono, i ka loa hookeai a me ka ikaika, e hina ia i 'Aʻohe, ohui i keia i ka likelihood o kēia. Kēia overvoltage mea aie i ka mea i hoʻomaka koke mahana i ka pono i loko o nā kumu o ka huakai kaapuni, a i inductance (iʻoi loa haahaa inductance ano o kaʻaha kanaka - na kaula, Track kāleka). E hoʻokō i ka hoomalu pono e hoʻohana likeʻole manaʻo e ae hōʻeuʻeu 'ole hoʻopale ai e ku e ia kiʻekiʻe voltages a me au.

Maʻamau, ka inductive impedance o ke anakahi uila kumu, a ua komo i loko o ka thyristor kaapuni pae'ōnaehana, i ka waiwai e like me ia ia mea oi ma mua o lawa e hōʻoia i ole hou aku loaʻa kekahi hou puni inductance. No keia mea, ma ka hana pinepine hoʻohana kaula ho okumu ka hoʻololiʻana ala a me ka nui loa ho'ēmi i kā ka uku a me ka piʻi o kēia i loko o ka huakai kaapuni i ka wa a ka thyristor ua huliʻia. Capacitive-Resistive kaula loa pinepine hoʻohana i kēia mau hana. Ka mea, loaʻa he thyristor i loko o laua. Aia mau loa kekahi mauʻano o ka huakai kaapuni a ka hoʻololi 'ana o ia mau wahi i puhi ai, e like me' ana i kūpono no lākou i ka ho omaulia, kiko'î a no ka hoohana ia ana o thyristors i loko o kekahi mau 'ole a me nā kumu. Akā, ke kaula kahua ala ka hoʻololiʻana huli-ae la i thyristor o ka like me ia o nā transistors.