Umsakazo scheme: ku-chip kanye umtshina elula

Lesi sihloko sizohlaziya circuit umsakazo, ukuhlaziya umsebenzi we imiklamo elula. Nonke ukwazi ukuthi kukhona eziningana wavebands. Bonke zihlukaniswe yezokusakaza yeselula, ukusetshenziswa esemthethweni, futhi radio amateur. Iziteshi Ukusakaza senziwa maphakathi no-range (AM, DM), eside (LW, LW), VHF (FM, FM) amagagasi. Manje uzofunda indlela yokwenza elingeyona inkimbinkimbi ukuthola iziteshi zomsakazo.

Umsakazo umtshina

Lokhu ukwakha ukhiqiza njalo ekuqaleni radio amateur. Futhi ngenxa ukubuthele, ngisho ingane, ngoba akunandaba ngempela. Ukuze yokukhiqiza, uzodinga ukuthola izinto ezilandelayo:

1. A capacitor onhlobonhlobo.
2. Standing phezu capacitor 4700 PF.
3. Ama-headphone nge emazombezombe ukumelana 1500 ohms. Ingabe TON-2 ephelele.
4. Semiconductor Silicon diode uhlobo D9. Nokho, ungasebenzisa noma yikuphi okusezingeni eliphezulu zanamuhla.
5. wire yethusi futhi mandrel ububanzi okungenani 40 mm.

Umsakazo ngenhla Umdwebo olotshiwe kusiza ukuba baqonde indlela ukuba nizifeze zonke izakhi uxhumano. Ngokukhethekile kufanele kukhokhelwe ukuklanywa antenna, phansi, inductors. Kulezi zingxenye kudingeka kuxoxwe ngazo ngokwehlukana. Umsakazo umtshina ongasebenza ku ezahlukene kanye nephakathi nendawo amagagasi, ngakho udinga isidlo egcwele kusebenta kwato.

antenna design, phansi kanye lekhoyili

Ukuze izifunda umsakazo esihlokweni wasebenza uhla MW, LW, hf, kubalulekile ukuba akhiqize i-antenna. Wenziwe wire ingxenye. Ungasebenzisa ukwahlukanisa multi-core, into esemqoka ukuthi kwaba cross-ingxenye engaphezu kuka-0.75 sq. mm. Kodwa amafutha amaningi akufanele isetshenziswe. Ubude kuwebhu antenna kubhekwa esekelwe imvamisa lapho umamukeli azosebenza. Ubude web kufanele abe ukuphindaphinda kwe-ukubaluleka imvamisa, uzwakalise ngamamitha. Uma sikhuluma ibanga 90 amamitha (3200 kHz), ubude antenna kufanele okungenani 10 m. It has imiswe ezingeni ukuphakama okungenani 3 metres uphinde uthele kancane ngokucophelela vimbela ukuhlangana izindonga, izihlahla nezingongolo.

Njengoba phansi angasebenzisa Ukushisa ipayipi. Nokho, inketho ekahle kungaba pin metal ayisa imitha okungenani eyodwa emhlabathini. Ikhoyili nilimaza ngocingo zethusi kuphela. Ngaphezu kwalokho, kufanele ube ukushuba esingeqile 0.75 mm, ukuze amandla ungenza ukuphikisa. Ikhoyili nilimaza phezu mandrel okuqinile ekugcineni ngokuphephile abethela. Sicela uqaphele ukuthi udinga ubuncane 90 uphendukela avale, ngakho zama Ukunquma mandrel eside ngangokunokwenzeka. Lezi izikimu imisakazo zinhle kuphela ngoba baqonde ukusebenza amadivayisi ezinjalo. Kodwa ukuzwela yayo uphansi kakhulu, ngakho-ke ingasetshenziswa ukulalela isiteshi somsakazo enamandla kuphela. Ngisho ukuxhumeka sangaphandle amplifier bass nawo angeke kukusindise esonweni.

Radio ku-chip

Ngenhla circuit umsakazo kwi K174HA34 chip. Le nto encane eqoqwe ISIZINDA eziningana - umtshina, Converter imvamisa, msindo isignali. Yiqiniso, lokhu chip siphelelwe yisikhathi, kodwa namanje ekhiqizwa, kanye nezindleko zayo sincane kakhulu. Yini enye edingekayo kuya Umthandi womculo engenantambo ekuqaleni? Uma ngisho nempango element, akusiyo into edabukisayo. Kukhona futhi nozakwabo bakwamanye amazwe, okuvumela ukukhiqiza imisakazo ngoba VHF, futhi izindleko zabo ingenkulu kakhulu. Leli cebo muhle ngoba enza izakhi hhayi iyindlala, kodwa bangathola iziteshi zomsakazo ku uhla kokusakaza. Omunye ethile - isidingo sokwenza-amplifier ezengeziwe of imvamisa low, kusukela wesifunda okukhipha a isignali enganamandla kakhulu.

isiphetho

Bambalwa waqonda ne radio design, ungakwazi uqhubekele womshini amadivayisi eziyinkimbinkimbi ngokwengeziwe. izingxenye Modern electronic ivumela ukwenza ngokwakho hhayi kuphela abamukelayo, yokukhulisa umsindo, futhi omoya kodwa ukuthi kuyoba usizo ngesikhathi iholide ngokwemvelo, ukuze akwazi ukufeza umsebenzi wokwakha, kanye ukulawula imoto. Ngokwesibonelo, ngokuba ukuqaliswa ekuqaleni othomathikhi. Ngamanye amazwi, circuit umsakazo ukusebenza ukuze asetshenziswa yonke indawo namuhla.