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    Amp na Udhibiti Tone na Byte Soft

     

    Maelezo:
    Ilijengwa karibu na LM380, kipaza sauti hiki ni pamoja na udhibiti wa toni na "ubadilishaji laini" wa elektroniki. Mzunguko wa ubadilishaji laini unahakikisha nguvu imejengwa hatua kwa hatua ikiondoa thump ya dc.

    amplifier na udhibiti tone

    Vidokezo:
    byte laini ni kuwezeshwa kwa transistor BD131 wired kama kubadili katika emitter Configuration mfuasi. ushuru ni wired voltage kudumu ugavi, mfululizo 2H inductor mtumishi tu kuchuja umeme hum. Inductor hii si muhimu sana na inaweza kuachwa kama ugavi DC ni vya kutosha smoothed. voltage udhibiti ni kutumika kwa terminal BD131 msingi, capacitor 10u na 10k resistor kuwa madhumuni ya aina mbili: -
    i) malipo ya polepole ya capacitor 10u kuhakikisha kwamba transistor mapenzi kubadili linearly kutoka Volts 0 na usambazaji kamili, na
    ii) hutumika kama chujio hum kuhakikisha laini sana DC ugavi na udhibiti amplifier na tone.
    LED1 itawaka wakati amplifier imewashwa. Voltage ya kudhibiti inapaswa kuwa volts 0 wakati amplifier imezimwa na voltage kamili ya usambazaji inapowasha. LM380 imeonyeshwa ikiendesha spika mbili za 8 ohm, mzigo ni 4 ohms. Capacitor 4u7 hufanya kama crossover ghafi, masafa ya chini yanazuiliwa na kwa hivyo spika hii inaweza kuwa aina ya "tweeter".

    Tone Udhibiti:
    pembejeo ya hii ni amplifier ni kupitia kudhibiti sauti ya msingi ya kubuni baxendall. BC109C kwanza mtumishi kama buffer, sadaka high pembejeo Impedans. ishara ya pato kulishwa kupitia capacitors 10u fika kudhibiti sauti ya mtandao. Mtandao huu tulivu ya resistors na capacitors hupunguza masafa ya juu na chini. kudhibiti bass ni katikati juu ya 100Hz na kutetemeshwa kudhibiti 10kHz. BC109C pili hukunjua hasara kutoka kudhibiti sauti, kwa ujumla kudhibiti sauti hutoa takribani + 6dB kuongeza na-20dB kukata. Kuona Bode njama chini:

     

    Bode majibu ya Udhibiti Toni:



    athari kuonyesha kuinua kiwango cha juu, kata ya kiwango cha juu na majibu na udhibiti tone katika nafasi ya kituo hicho. Kunaweza kuwa na ugumu wa kupata transistors BC109C, lakini transistors BC108C kufanya badala bora.

    LM380 Pinout:
     

    lm380

     

     

     

     

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