Scheme tīwerawera ngongo. Waea hoahoa o te tīwerawera

Ka tenei tuhinga e ako i roto i te taipitopito tīwerawera ngongo iahiko mārua. O te akoranga, he tawhito tenei tikanga, engari ki tenei ra e taea te whakatau koe pā o "faka". Te tangata hiahia noa tangi ngongo mamati, ka mahi te tangata i roto i hoatu i te ora tuarua ki te toi, te hautoa, Kia whakahokia te reira moka i te moka. He maha ngā reo irirangi amateur, e mahi i roto i te rangi, te whakamahi i te rama mo te hanganga o te tahi mau kaupapa hūkere. Hei tauira, ki te UHF māmā te hanga ïa i runga i rama kaha, mai transistors ratou ka uaua rawa.

ara iahiko tīwerawera Structural

Ko te hoahoa poraka ko e whai ake:

1. Ko te pūtake tohu (hopuoro putanga, waea, rorohiko, a na i runga i. D.).
2. mana rōrahi - he potentiometer (ārai tāupe).
3. hanga te preamplifier te i runga i te rama (te tikanga transistor), he transistor.
4. Kei te hono te mekameka o te ara iahiko mana āhua ki te rama pitoake preamplifier.
5. tīwerawera Final. Kei te nuinga o te wā whakamana i te pentode, hei tauira, 6P14S.
6. He pūrere ōrite, tuku i te putanga o te pūnaha korero tīwerawera me te ū. Ka rite ki te tikanga, te whakatangihanga a tenei tūranga te iho momo hiko (220/12 wae).
7. supply Power, ai hangaia nga ngaohiko e rua: tamau 250-300 V me 6.3 V ac (12.6 ki te tika).

E ai ki te hoahoa poraka, hangaia i roto i te parau tumu. He mea tika ki te tino titiro ia kōpuku pūnaha ki te hanga i te tīwerawera kore kua meinga raruraru.

LF Power whakakaha

Ka rite ki whakahuatia i runga ake, me hua te supply te mana uara ngaohiko rerekē e rua. Ki te mahi i tenei, te whakamahi i te hiko ki te hoahoa motuhake. Me whai ia toru kopiko - Networking, tuarua, me te tuatoru. Ko te rua whakamutunga hua te ngaohiko tauutuutu o 250-300 V me 6.3 V, aua. 6.3 - te ngaohiko supply o korere kakawaea. A, ki te he te reira, rite ki te tikanga, e kore e rapua e tetahi maimoatanga, hei tauira, i roto i te filtration me whakatikatikaina, Me nga Volts AC 250 te huringa iti. hiahiatia ana tēnei te ki te hono i te ara iahiko tīwerawera ki te pūtake mana.

Hei tono i tēnei poraka rectifier, tito nei o wha p Semiconductor me whiriwhiringa - pūnga iahiko -hiko. e faati'a ai whakatika p tauutuutu nāianei, me te kia pūmau ai. He pūnga he āhuatanga ngā. Ki te titiro koe ki ngā pūnga iahiko ōrite mō te AC me DC (i te ture a Kirchhoff), ka taea e kite koe i tetahi āhuatanga. I roto i te mahi, whakakapia te parenga ia pūnga e i roto i te ara iahiko o nāianei tamau.

Otiia ka mahi i roto i te ara iahiko AC e whakakapi i te reira e te wāhanga pēne. I roto i te mau parau te tahi atu, ka tāuta i roto i te pēke te kaha pūnga ka whiwhi koe i te DC ngaohiko ma, ka ngaro te wāhanga tāupe katoa e tika ana ki te terminals poto-circuited i roto i te ara iahiko ōrite.

Whakaritenga mo te hiko

He huru nui - te aroaro o te maha e hiahiatia o kopiko mo te supply o anodes me nga topuku ngangana kakawaea. I runga anō i e whakamahi iahiko he tīwerawera mana titau te amipere ngaohiko mana rerekē. uara Paerewa - he 6.3 V. Heoi, etahi rama, pērā i G-807, PG-50, e rapu he ngaohiko o 12.6 V. fakafaingata'a'ia'i tenei te hoahoa me te hanga whakamahi o te hiko rahi nui.

Otiia, ki te whakamahere koe ki te kohikohi mana anake i runga i te rama maihao (6N2P, 6P14P et al.), Ko te hiahia mo te taua ngaohiko mana supply te kore mura. Kia whai whakaaro ki te rahi - ki te hiahia koe ki te kohikohi i te tīwerawera iti, te whakamahi i te transformers kotahi-pōkai. E ratou kotahi drawback - e kore e taea ki te whiwhi i te kaha nui. Ki te reira te mea he pātai o te mana, he pai ki te whakamahi i transformers TS-180, TS-270.

Housing mo ngā pūrere

Hoki iti-auau e pai amplifiers whakamahia whare i konumohe piauau ranei, i huihui mai o radioelements hua hawhe ara. Ko te ngoikoretanga o te pūrere huihui i runga i te poari taiawhio tāngia - mō te whakawera turanga rama hoki waewae timata ki te delaminate whakapiringa i nga ara, kua ngaro te reira. Ngaro whakapā, me riro iu mahi Ulf, i reira e te tahi atu oro.

Ki te i roto i te wā-mua tono tīwerawera ara iahiko kei te ki te transistor, he nui te reira ki te mahi i te reira i runga i te wahi iti o te PCB - ka waiho atu pono. Ko te whakamahi o te ranu hanga ona whakaritenga mana. Ka taea te whakaritea te reira i roto i te take rakau mo te kita Ulf. Ko roto hiahia koe ki te tāuta i te tahuhu whakarewa, ka e kia kohia te pūrere katoa. He mea tika ki te tono i te casing whakarewa, rite hanga reira reira ngāwari ki te hipoki hūkere i ia atu, e faaore te taea o te whaiaro excitation-a ētahi atu raweketia.

Whakaritea rōrahi me te reo

Ka taea te kō atu i te ara iahiko tīwerawera ohie e rua tikanga - rōrahi me te reo. eke tika te regulator tuatahi i runga i te kokoru o Ulf, taea reira ki te whakarerekē i te uara o te tohu taumai. Ka taea e koe te whakamahi i parenga tāupe o tetahi hoahoa e ka mahi pai i roto i te Ulf. e kore e ki te mana ano hoki reo raruraru tupu - te ārai tāupe ngā i roto i te ara iahiko pitoake o te atamira tuatahi. Me ki te whakatau i roto i ai ahunga hanga te hurihanga e ki te tāpiri i te RF, a i roto i te mea kaha mo te LF anake.

he tika ki te mahi i te ara katoa i amplifiers ahumahi reira, te kore e waiho te reira uaua ki te whakamahi i te hoahoa. Ko te reira noa te ara iahiko mana reo, he reira whakaaro ki te tāuta i te kōwae iti, e ka huri te auautanga i roto i te whānuitanga whanui. kia roto i amplifiers kaupapa ngongo kōwae iti i runga i Semiconductors - TONE, whiriwhiringa iti-haere. Ki te kahore he hiahia ki te whakaputa i te oro-koe, e taea te hokona te reira i roto i te toa. Ko te tino iti te utu o taua TONE.

tīwerawera tīwharawhara

Ko he nui tupukoso atu reo Ulf tīwharawhara whakarongo. A ki te hanga i te reira rua rite pakeke - e hiahia ana koe ki te kohikohi i tetahi Ulf ki te taua tawhā. Ka rite ki te hua, whiwhi koe rua kōkuhunga me rite maha whakaputanga. A kia ōrite te ara iahiko mana tīwerawera me ngā wāhanga tuatahi, te kore e rerekē mahi.

pūnga iahiko katoa me parenga o te taua tawhā - i te uara o ngā taurangi me ngā tukunga. Me whakamahia hoahoa i honoa e hoki - ngā whakaritenga motuhake mō te ātete ki te huri i te mana rōrahi, me te TONE. Ko te whakaaro e te mea e tika ana ki te whakarite taurite o whakatikatika enei tawhā i roto i takere e rua.

pūnaha 2.1

Otiia ki te whakapai ake i te kounga tangi, ka taea e koe te tāpiri i te Wuwhaiti e ka ia faananea i te iarere iti. E kore e te ara iahiko hononga tīwerawera whānui huri, anake te tāpiri tuatoru te poraka. I roto i te meka, kia whai koe toru amplifiers reo tino ōrite - kotahi mo te teihana, matau, Wuwhaiti mahue.

Kia mahara e te mana rōrahi runga i te Wuwhaiti he wehe i te CFP. Ka tukua tenei i roto i te heke mai ki te huri i te taumata taonga. Kuti te "anō" auau whakatinana e te taiawhio ohie, e ngā rave rahi pūnga iahiko me parenga. Ko taea e koe te whakamahi i ngā tātari iti-haere rite-hanga, e kua hokona i roto i tetahi toa o ngā wāhanga reo irirangi.

mutunga

Kua uiui e matou te kaupapa o amplifiers ngongo, e maha i toutou hams i roto i o ratou whakaaro. Whaiaro-hanga ratou i raro i te ope o te tangata e mohio ki te hapai i te rino whakapiringa, me tuhinga hangarau. Otiia, ki te kore koe e taea e wehewehe i waenganui i te parenga, me te condenser kore e tamata ki te ako i tetahi mea, a ka hiahia he tīwerawera, he reira pai ki te ui hanga he ariki mātau te VLF.