Joojinta oscillator: nooc, mabaadi'da hawlgalka

Joojinta oscillator - waxaa nasashada matoor garaaca wadnaha waxaa la sameeyaa ku salaysan waxa on element jaha ah (tus, transistor) oo leh transformer-celin xoog leh. The ra'yi-celin wanaagsan inta badan loo isticmaalaa.

Faa'iidada iyo faa'iido darrada

Faa'iidada of matoorrada sida waxaa loo arkaa inay fudud, awood u leh inay ku xirmaan load ku dhex transformer ah. Qaabka uu u karsado ahbaa ku dhow yahay inuu qaab, gaadho tobanaan kun oo wareegga waajib, oo dhererkeedu wuxuu - boqolaal microseconds. yareysey inta jeer soo noq-garaaca wadnaha ilaa dhowr boqol oo Khz. wareeggeedii Capacity oscillatory in qalabka sida waa yar yahay, oo waxaa keena capacitances interturn, dabcan, awoodda loo xirxiro. Sababtoo ah oo ka mid ah tayada xanibeen oscillator waxaa si balaadhan looga isticmaalaa in soo saaridda ee, in qalabka qalabaynta, warshadaha iyo xeerka korontada.

Faa'iida of matoorrada waa tiirsanaanta ee inta jeer ee isbeddel ah ee danab sahayda. xasiloonida The oo ka mid ah inta jeer waa hoose oo aan ahayn multivibrator waa boqolkiiba 5-10.

Joojinta oscillator, ururiyey by hannaankii Roobka wanaagsan ama la wareegeen meel resonant la soco in inta jeer ee soo noq-garaaca wadnaha, la diode a dareysa, ayaa xasilooni ah xad sare oo oscillation. xasiloonida Frequency ee la wadago sida, in ka yar boqolkiiba hal.

Waxaa jira barnaamijyo badan oo loogu talagalay fulinta matoorrada sida: transistor laambad la transistor saldhig mowjadda la emitter-xidhay, ayuu shabag ku wanaagsan stage faa'iido ah, FET oo kale.

Sawirka wuxuu muujinayaa oscillator ku furid on a FET.

The qalab ugu caansan helay transistors caadiga ah. In qalabka sida caadiga ah u isticmaalaan gudbiyeyaasha garaaca wadnaha. matoor The shaqeeyaan laga yaabaa in hab xiran, waxaa si fudud beehsa signal dibadda.

Joojinta oscillator, mabda'a qalliinka

Operation Bannaanka u qaybsan yahay dhowr marxaladood. Talaabada Koowaad: furayay transistor dhacdaa marka galaya garaaca wadnaha si emitter ah. qalab ay shaqadeeda bilowdo. Marka salka transistor helo iridda hadda ah, waxa sababa raasamaal amarka iyo kororka of ururiyaha hadda. Iyada oo resistor ah waa ra'yi-celin wanaagsan, windings dhaqan of transformer wadnaha yididiila galin saldhigga nidaamka gebiyo koritaanka, hadda ururiyaha ah iyo load hadda. Tani waxay hoos u kala duwan yihiin laga yaabo in u dhexeeya emitter iyo ururiyaha ee transistor markuu u yimid, eber, unit galo gobolka robab ah. Talaabada Labaad: dayaceen iska caabin ah loogu fuuli jiray aasaasiga ah, waxaan aaminsanahay in gariiradda waa tamaraysan la danab DC. Sidaas darteed, soo windings haray danab transformer sidoo kale waa iska beddelin. Character hadda beddelka circuit waxaa lagu go'aamiyaa hantida silsilado in ku xiran yihiin ee taxanahan la windings sare, iyo sidoo kale astaamaha asaasiga ah transformer ah. Tusaale ahaan, hadda waxay noqon doontaa load resistive joogto ah. Hadda ku saleysan joogto ah transistor ah, laakiin uu bilaabo inuu hoos u markii amraya capacitor ah. hadda ururiyaha waxaa go'aamiya wadarta ah windings hadda magnetizing hadda iyo transient. Kororka hadda magnetizing, loop hysteresis koritaanka waxaa lagu go'aamiyaa nooca wax xudunta u ah. Sidaa darteed, korodhka iyo ururiyaha hadda. Taasina waxay keentaa in transistor ka soo baxa u damaysay, peak garaaca wadnaha waxaa la aasaasay. hadda ururiyaha waa mar kale ku tiirsan tahay xajmiga la'aan salka, hadda salka iyo sidaas bilaabo hoos gebiyo. Transistor qufulan, qaybta wadnaha waxaa la aasaasay. Marka quful qalab oscillator xanibeen bilaabaa inuu ka soo kabsado ay gobolka asalka ah.