Nyeem thiab nrhiav yuav ua li cas sib sau ua suab nrov muaj zog heev hauv tsev nrog koj tus kheej tes - 60 Watt lub tso suab lossis 120 Watt mono siv LM4780 microcircuit. TIAB SA 4780 qhov no yog microcircuit uas tau tsim los ntawm National Semiconductor, ua tsaug rau nws koj tuaj yeem ua lub suab nrov nrov - 60/120 hli … Qhov microcircuit no ua rau muaj kev sib haum xeeb tsawg heev ntawm qhov tsis sib xws, uas yog lub suab zoo lub zog loj. Yog tias koj ua lub suab nrov tshaj plaws, tom qab ntawd LM4780 yuav muab qhov sib txawv sib txawv - 0.5%. Txog tam sim no, qhov no yog cov ntaub ntawv muaj zog ntawm txhua lwm tus.
LM4780 nti muaj cov yam ntxwv hauv qab no:
- Harmonic distortion (Pout = 30 W, Rload = 8O m): 0.03%
- Lub zog muaj zog: +/- 20 … 84 V
- Suab nrov rau teeb liab piv: 114%
- Kev siv tam sim no tsis muaj teeb liab: 110 mA
- Lub zog tso tawm (KG = 0.5%, Kev Siv = 35 V): 60 W
Qhov IC no tau ua nrog ob txoj hauv kev, zoo ib yam: qhov ua kom nrov hauv cov hom txuas (mono) thiab cov yam ntxwv ntawm cov suab tso suab. Hauv tus choj hom ntawm microcircuit no, lub tshuab ua haujlwm tuaj yeem ua haujlwm nkaus xwb hauv hom mono. Nrog rau qhov teeb tsa no, lub zog siab tshaj yuav yog 120 watts thiab 0.5% KG. Lwm qhov tshwj xeeb tseem tsis hloov pauv.
Lub zog siv hluav taws xob ua hluav taws xob 60/120 watts:
Ob-channel tsim tawm (tso suab)
Hom Bridged (Mono)
Txhua lub Cheebtsam ntawm lub rooj tsavxwm tsis muaj ntau thiab lawv yooj yim mus nrhiav. LM4780 tau ua hauv rooj plaub TO-220 thiab yooj yim heev rau txuas rau lub tshuab hluav taws xob lub tshuab hluav taws xob. Koj yuav tsum xaiv lub tshuab hluav taws xob zoo, loj, koj tuaj yeem ua dab tsi, yog tias koj xav tau lub suab muaj zog, koj yuav tsum tau txias nws kom zoo.
Daim ntawv teev npe rau 2-channel (tso suab):
Kev teev npe hauv daim duab / Nominal
- C1 / 15
- C2 / 15
- C3 / 1μF
- C4 / 1μF
- C5 / 68mkFx50V
- C6 / 68mkFx50V
- C7 / 0, 1
- C8 / 10mkFx50V
- C9 / 0, 1
- C10 / 1000mkFx50V
- C11 / 10mkFx50V
- C12 / 1000mkFx50V
- C13 / 0, 1
- C14 / 0, 1
- R1 / 10 kΩ
- R2 / 1 kΩ ib
- R3 / 1 kΩ ib
- R4 / 15 hli
- R5 / 1 kΩ ib
- R6 / 15 kOhm
- R7 / 1 kΩ ib
- R8 / 20 hli
- R9 / 2, 7 hli
- R10 / 2, 7 hmo
- R11 / 20 hli
- DA1 / LM4780
