Zener - he aha te mea tenei a he aha te mea te reira hoki?

Zener - ngōhiko ko te Semiconductor ki ngā āhuatanga ahurei. Ki te he Semiconductor noa ka te whakaurunga whakamuri ko te insulator, mahi reira tenei mahi tae noa ki etahi he tupu o te ngaohiko tono, taunga nei puta raru horonga reversible. Ki te hua atu i roto i te rere i roto i te zener ngōhiko whakamuri ngaohiko tonu tamau e tika ana ki te hekenga hautanga o te parenga. I roto i tenei ara taea ki te whakatutuki i te aratau stabilization.

A, no te katia, te zener tuatahi haere te leakage iti nāianei. mahi a Huānga rite te parenga nei ātete uara he nui. I roto i te rärangi o te ātete zener riro iti. Ki te haere tonu atu ki te whakaara i te ngaohiko tāuru, ka tīmata te huānga ki whakamahana ake me ka nui te nāianei te uara whakaaetia o te pahika ngāwhā tina heke. Ki te te kore kawea reira ki reira, e puritia te huringa o te ngaohiko i te kore ki te rohe o runga o te āhuatanga zener mokowāmahi.

A, no te tika kē zener kore āhuatanga ngōhiko e rerekē i te ngōhiko. A, no te hono ki te p-me rohe, me te tango - ki n-rohe o te ātete whakawhiti he iti, me te rere noa te nāianei i roto i reira. whakanuia ana e ia ki te ngaohiko tāuru.

Zener - he ngōhiko motuhake, hono nuinga whakamuri. he huānga Tuatahi i roto i te āhua kati. A, no te pupuri i te ngaohiko rärangi zener hiko te tamau i roto i te whānuitanga nui o nāianei.

Kei te tukua ki te tōraro pitoake me te pitoiho - me. I tua atu stabilization (ira 2 i raro) me te overheat whakanuia ana te tūponotanga o te kore pūtau.

āhuatanga o

He tawhā zener ngōhiko e whai ake:

• U _v - ngaohiko stabilization i te iti _v ahau _nāianei;
• _{Tuhinga min} ahau - wehenga iti hiko tīmata nāianei;
• Ahau _{st max} - te whakaaetia nāianei mōrahi;
• TKN - pāmahana whakarea.

Rerekē te ngōhiko tikanga, te ngōhiko zener - he pūrere Semiconductor, i roto i nei tawhiti nui te āhuatanga o nāianei-ngaohiko o te mara o te wehenga hiko, me te waiariki e kei i tahi e te tahi.

Ki te nāianei tīkina mōrahi o te tawhā hāngai ana, maha hoatu i roto i te papa - te mana toreretanga:

P _max = ahau _max ∙ U _{v v.}

Ti'aturiraa i runga i te pāmahana o te mahi o te ngōhiko zener pea he TKN pai kino ranei. Ko te huānga hononga raupapa ki rerekē tohu mo te tau whakarea e kore pū zener i runga i whakawera tautauā ranei rānei.

o te ara iahiko

He hoahoa angamaheni o te stabilizer ohie, titoa o te kawenga whakanekeneke whakataimaha resistance R _b me zener ngōhiko.

I roto i ētahi wā, i reira he he hara o te stabilization.

1. Stabilizer infeed ngaohiko nui i te puna mana i roto i te aroaro o te pūnga tātari putanga. nāianei Inrush ka tohutohutia taea meinga kore o te ngōhiko zener ranei te whakangaromanga o te parenga iahiko R _b.
2. haamaniiraa kawenga. A, no te tono ki te ngaohiko tāuru mōrahi o te nāianei zener ngōhiko kia nui te tīkina e arahi ki tona whakangaromanga me te whakawera. He mea nui ki te ū ki te rohe whakahaere haumaru uruwhenua.
3. tīpakohia te ātete R _b te iti, kia i te uara ka taea i raro o te ngaohiko supply me te mōrahi o nāianei kawenga tīkina ki te ngōhiko zener kei roto i te mahi rohe ture.

Hei tiaki i te iahiko tiaki thyristor stabilizer whakamahia ranei fuses.

tātai parenga iahiko R _b e te tātai:

R _b = (U _rua - U _{SG) (v} ahau + ahau _n).

whiriwhiria Zener nāianei _v ahau te waenganui i mōrahi me te mōkito uara manakohia, i runga i te ngaohiko tāuru U _poka, me te kawenga o nāianei ahau _{n rānei.}

Ko te kōwhiringa o te zener

Ko te āhuatanga i te rerekētanga nui i roto i te stabilization ngaohiko. Ki te tiki i te uara tika o U _n, kua tīpakohia te p Zener i te puranga kotahi. He momo ki te whānuitanga kuiti o ngā tawhā. I te mana nui eke huānga toreretanga i runga i radiators.

raraunga tāuru tika mo te tātai o ngā tawhā o te ngōhiko zener, mo te tauira, e whai ake:

• U _NUM = 12-15 - tāuru ngaohiko;
• U _v = 9 - ngaohiko ähuareka;
• R _n = 50-100 mA - kawenga.

Tawhā āhuatanga o ngā pūrere ki te kohi mana iti.

Hoki te ngaohiko iti o 12 V tāuru, te nāianei i te kawenga mōrahi whiriwhiri te - 100 mA. E ai ki te ture a Ohm taea te kitea te katoa taimaha o te mekameka:

R _Σ = 12 V / 0.1 A = 120 ohms.

Zener ngaohiko maturuturunga ko 9 V. I roto i tēnei wā o 0.1 te kawenga tohipa ko:

R _EQ = 9 V / 0.1 A = 90 ohms.

Na ko reira taea ki te whakatau i te ātete o te whakataimaha:

R _B = 120 ohms - 90 ohms = 30 ohms.

Kei te tīpakohia te reira i te whānuitanga paerewa i reira hāngai te uara ki te uara tatau.

whakaritea te nāianei mōrahi i roto i te ngōhiko zener e tango ki pūkete te momotunga utanga, e kore te mea te reira i roto i o tikanga, ki te mea tetahi waea unsolder. Ko te maturuturunga iho ngaohiko puta noa i te parenga iahiko e:

U _R = 15 - 9 = 6 V.

Next, te nāianei i roto i te parenga iahiko:

Ahau _R = 6/30 = 0,2 A.

Mai hono te ngōhiko zener e i roto i te raupapa ki reira, _b ahau = _R ahau = 0,2 A.

mana toreretanga ka waiho P = 0,2 ∙ 9 = 1.8 Watts.

E ai ki nga tawhā whiwhi whiriwhiria he D815V zener tika.

zener hangarite

He diac Ko te pūrere whakawhitinga, he nāianei tauutuutu conductive. He āhuatanga o tona mahi, ko te ki te maturuturu te ngaohiko ki te maha volts ka whakaurua i roto i te whānuitanga o 30-50 V. Ka taea te whakakapi te reira e rua zener tikanga oppositely ngā. E whakamahia Pūrere rite whakawhiti huānga.

zener orotahi

A, no te kore e taea e kitea e koe i te huānga e tika ana, e whakamahia ana te faaauraa o te transistors zener ngōhiko. painga ratou ko te taea o te ngaohiko ture. Tenei e taea te tono DC amplifiers ki ngā wāhanga maha.

I te kaiwehewehe tāuru ngaohiko ki te whakatū i te parenga iahiko trimming R1. Ki te faarahi te ngaohiko tāuru, i runga i te pūtake o te transistor Kei te piki haere ano hoki VT1. faarahi tenei te nāianei i roto i te transistor VT2, e tikanga ai mo te hua ngaohiko, reira te pupuri tona putanga pūmau.

tohu Zener

Wātea i roto i te karaihe te p zener me te p Zener i roto i te whare kirihou. I roto i te take tuatahi e tono ratou ki runga ki tau 2, i waenganui i te pukapuka V. Taitara 9V1 tohu e U _v = 9,1 V.

I runga i te kirihou e deciphered inscriptions whare mā te whakamahi i te rauraraunga, te wahi e taea hoki e kitea e koe i te tahi atu kōwhiringa.

mowhiti pouri i runga i te tinana tohua e te pitoiho, ki hono nei te te tāpiri.

mutunga

Zener - ngōhiko reira ki āhuatanga motuhake. Ko te painga ko te Zener nui ngā ngaohiko i runga i te mahi whānui whānui o rerekētanga o nāianei, me te kaupapa hononga ohie. Ki te ū te ngaohiko iti whakaaro ngā te aronga whakamua, me timata ratou ki te mahi p rite noa.