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Forum Elektroniczne - Szukaj

Znaleziono 13 wyników

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[phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1191: count(): Parameter must be an array or an object that implements Countable
autor: elmer
pn 27 gru 2004, 17:45
Forum: Podzespoły i układy
Temat: Wzmacniacz audio na STK4048
Odpowiedzi: 13
Odsłony: 31008

Wzmacniacz audio na STK4048

Witam

Mam pytanie czy do typowej aplikacji układowej tegu układu można podłączyć głośnik o impedancji 4 Ohm ??? Jesli tak to czy trzeba zmieniac napiecie zasilania...

pozdro
autor: elmer
pn 27 gru 2004, 19:52
Forum: Podzespoły i układy
Temat: Wzmacniacz audio na STK4048
Odpowiedzi: 13
Odsłony: 31008

Aha teraz już wiem. Mam jeszcze w związku z powyższym pytanie... Zamierzam użyć jakiegoś scalaka do zasilania subwoofera w samochodzie. Moc max jaka bedzie potrzebna do optymalnej pracy to 140 W RMS, bo taką moc RMS sugeruje głośnik. Oczywiście wiem o tym, że jest potrzebna stosowna przetwornica nap...
autor: elmer
wt 28 gru 2004, 15:14
Forum: Podzespoły i układy
Temat: Wzmacniacz audio na STK4048
Odpowiedzi: 13
Odsłony: 31008

Witam

Chcę coś Wam pokazać. Na interneci krąrzy taki schemat bodaj na elektrodzie.pl... I tu jest napisane 205 W przy 4 Ohm zasilanie +-55 V. Czy to prawda ???

mink do tego schematu:

http://www.elektroda.net/audio/index.html

Nazwa pliku to "Wzmacniacz 150W z układem STK4048"
autor: elmer
śr 30 mar 2005, 20:40
Forum: Podzespoły i układy
Temat: Wzmacniacz z EP "AVT-200" - czy ktos robil...?
Odpowiedzi: 6
Odsłony: 9066

Wzmacniacz z EP "AVT-200" - czy ktos robil...?

Witam Wzmacniacz opisany ladnych pare lat temu na lamach Elektroniki Praktycznej nr 5/94. Chcialem sie dowiedzic czy ktos z Was wykonywal ten wzmacniacz ? Jakie problemy napotkal przy budowie i uruchomieniu ? Czy istnieje mozliwosc przerobienia tego wzmacniacza z mocy sinus 100W na moc sinus 140W w ...
autor: elmer
czw 31 mar 2005, 14:38
Forum: Podzespoły i układy
Temat: Diody BYV42/200 i 30A
Odpowiedzi: 1
Odsłony: 4275

Diody BYV42/200 i 30A

autor: elmer
śr 06 kwie 2005, 16:55
Forum: Noty katalogowe / datasheets
Temat: Poszukuje artykułu z Elektronik Elektor 12/1994
Odpowiedzi: 4
Odsłony: 9729

autor: elmer
ndz 10 kwie 2005, 16:33
Forum: Podzespoły i układy
Temat: Wzmacniacz z EP "AVT-200" - czy ktos robil...?
Odpowiedzi: 6
Odsłony: 9066

autor: elmer
pn 02 maja 2005, 15:24
Forum: Podzespoły i układy
Temat: Wzmacniacz HEXFET Holtona w wersji Nowego ELEktronika 368-k
Odpowiedzi: 10
Odsłony: 15811

Wzmacniacz HEXFET Holtona w wersji Nowego ELEktronika 368-k

Witam Czy ktoś z Was miał już doczynienia z tym wzmacniaczem? Głównie chodzi mi o to czy płata figle podczs uruchamiania, czy ich nie płata bo jest od początku zimny, czy nie płata bo rusza od razu... Aha czy mogę do niego podłączyć obciążenie 2Ohm aby uzyskać moc RMS 280W ? W załącniku skan tego ar...
autor: elmer
śr 15 mar 2006, 19:32
Forum: Podzespoły i układy
Temat: Nasycenie rdzenia
Odpowiedzi: 1
Odsłony: 3586

Nasycenie rdzenia

Witam Poniżej znajduję sie wykres Bpeak(f) rdzenia ferrytowego pierścieniowego o oznaczeniu TX42/26/13. Jest to rdzeń produkcji Ferroxcube wykonany z materiału 3C90. - Co to jest stan nasycenia rdzenia ? - Kiedy on występuje ? - Jak poznać kiedy ten rdzeń wchodzi w stan nasycenia ? Czy stan nasyceni...
autor: elmer
śr 15 mar 2006, 19:35
Forum: Komputery, oprogramowanie i internet
Temat: Kierownica do PC
Odpowiedzi: 1
Odsłony: 24423

Pozno bo pozno ale moze jeszcze nie dotarles do tego :)

www.elektroda.pl >> Komputery
autor: elmer
pn 02 maja 2005, 17:21
Forum: Podzespoły i układy
Temat: Wzmacniacz HEXFET Holtona w wersji Nowego ELEktronika 368-k
Odpowiedzi: 10
Odsłony: 15811

Aha dzieki za pomoc w temacie. Bo chodzi mi o to, ze posiadam dwa glosniki 4Ohm o mocy RMS po 140W a max 280W. chce je obydwa wykorzystac, dlatego mysle o polaczeniu ich albo rownolegle albo szeregowo. jesli bym polaczyl je szeregowo to wowczas impedancja wyniesie 8Ohm i moc 200WRMS zgodnie z tym co...
autor: elmer
wt 28 mar 2006, 20:59
Forum: Noty katalogowe / datasheets
Temat: Co znaczą te określenia w nocie SG3525A?
Odpowiedzi: 1
Odsłony: 4721

Co znaczą te określenia w nocie SG3525A?

W nocie aplikacyjnej SG3525A można sie natknac na takie oto okreslenia Isink i Isource. Co one oznaczaja? Czy znaczy to tyle co Prąd ujścia i Prąd źródła? Jesli tak to co to za prady na co one tam wogole są w tych stanach na wyjsciu driverow?

Link do noty:
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