Flashing LED: isiqu, incazelo

Ngokuvamile izitolo abathengisa izingxenye umsakazo, kungabonwa agqoke LED. Zihluke ngamandla nombala kukhanya. LED abhanyazayo (MSD) zifakwa oluxube Semiconductor ebalulekile ishayela ugesi kabani imvamisa kuba nokuqubuka 1,5-3Gts.

Abaningi umsakazo opharetha amateur cabanga ukuthi amadivayisi engenamsebenzi futhi kufanele kufakwe eshibhile izinkomba LED. Mhlawumbe ngandlela-thile baqinisile. Nokho, DPA futhi banelungelo khona. Zama ukuqonda ukuthi yini izinzuzo imikhiqizo enjalo.

Flashing LED, eqinisweni, kuyinto ephelele iyithimba injongo eyinhloko - ukuheha ukunakwa, kuba umsebenzi ukukhanya-mkhosi. Kufanele kuphawulwe ukuthi ubukhulu agqoke izakhi Semiconductor musa zehluke ejwayelekile inkomba LED. Nokho, naphezu lalilincane kahle, ku-MSD kuhlanganisa Semiconductor chip oscillators, kanye izinto ezinhle ezengeziwe. Uma generator ishayela yakhelwe in ezivamile izingxenye umsakazo, lo mklamo obekungaba usayizi sasivumela ehloniphekayo. Kuyaphawuleka ukuthi LED ukukhanyisa abasakwazi jikelele. Voltage supply izakhi enjalo uhla 1,8-5 V ukuze voltage amadivayisi ongaphakeme futhi 3-14 V ukuze voltage okusezingeni eliphezulu. Isithombe esingezansi sibonisa eshaywa LED volts 12.

Izinzuzo MSD:

- anhlobonhlobo ukunikezela voltages (14 volts);

- encane Ubukhulu jikelele ;

- impela kudivayisi compact ukukhanya-okuwuphawu;

- ezahlukene ekushayweni imibala. Ezinye okuhlukile agqoke LED eziningana esakhelwe umbala diodes nge imvamisa igqamuka (agqoke ophuzi LED nesithombe eziboniswe) obuhlukahlukene;

- ukusetshenziswa MSD onesizathu amadivayisi amancane, lapho izidingo esiqinile usayizi izingxenye futhi amandla ukusetshenziswa. Lezi diodes, ngenxa ukujikeleza kwalo electronic ayebuthene izakhiwo Mos abe ukusetshenziswa ongaphakeme lwamanje ngesikhathi sezingeni eliphezulu amandla ekushayweni;

- Flashing kudivayisi Semiconductor Ungashintshanisa ngisho iyithimba.

Esikhathini wesifunda imidvwebo MSD isithombe ingcaca lihlukile LED ezivamile nje imigqa ezinamachashazi imicibisholo zifanekisela agqoke isici izakhiwo.

Ake sihlole kabanzi ukuklanywa LED ukukhanyisa. Through the esobala isici izindlu kuyabonakala, okungukuthi diode ezakhayo inezingxenye ezimbili. Khanyisa chip likhipha ibekwe ngesisekelo the cathode (negative) electrode kanye chip-generator kusekelwe anode (electrode positive). Zonke izingxenye kudivayisi zixhumene ne amabhuloho ezintathu igolide. Chip generator kuyinto okusezingeni eliphezulu imvamisa master oscillator nesebenzela ngokuqhubekayo, imvamisa yayo nxazonke 100 kHz. Futhi e Isikimu agqoke diode ehlukanisayo likhona, ayebuthene izakhi okunengqondo. It uhlukanisa okusezingeni eliphezulu imvamisa Inani izinga 1.5-3 Hz. Ungase ubuze: "Kodwa kungani zisebenzisa i-generator ephezulu imvamisa a ehlukanisayo, kungani kwakungenakwenzeka ukusebenzisa oscillator ongaphakeme-imvamisa, futhi ngaleyo ndlela lula design?" Lokhu kungenxa yokuthi i-ukuqaliswa generator imvamisa ongaphakeme kudinga capacitance capacitor ezinkulu vremyaopredelyayuschey chain. Ukuqalisa capacitor okunjalo kuyodinga endaweni inkulu kakhulu kunangendlela ngokusebenzisa ephezulu imvamisa generator.

Ngakho sabuka ngani Siyafulesha LED. Futhi umbuzo okuyinto engcono - noma bendabuko ubuchwepheshe MSD inkomba diodes ukuphendula ukuthi naphezu cheapness lesibili, diodes agqoke futhi wathola Ububanzi yabo futhi Azibangisani bendabuko.