akustika cro korektura 4.p65 - Svet elektronike

SADRŽAJ
Elektronske cijevi – nostalgija ili ...
Sve što dosad niste znali o elektronskim cijevima .............................................................................................. 6
Uvod u projektiranje cijevnih pojaèala .............................................................................................................. 26
Napajanje cijevnih ureðaja ................................................................................................................................ 34
Ispravljaèke prigušnice za cijevna pojaèala ....................................................................................................... 39
Integrirani krugovi u audioureðajima
NF pojaèala snage do 1W ................................................................................................................................. 46
Dvostruka integrirana pojaèala manjih snaga proizvoðaèa National Semiconductors ....................................... 55
Osnovno o niskofrekventnim pojaèalima .......................................................................................................... 60
1 W NF pojaèalo s digitalnom kontrolom glasnoæe ........................................................................................... 65
TDA7384A, audiopojaèalo snage 4 x 25 W ....................................................................................................... 67
TDA8920, pojaèalo snage 2 x 50 W radi u D-klasi s visokim stupnjem korisnosti ............................................ 70
Zetex je proizveo audio pojaèalo D-klase .......................................................................................................... 73
LM4832 - digitalno podesivo pojaèalo s kontrolom tona, mikrofonskim pretpojaèalom i 3D zvukom .............. 74
Prekidaèko audiopojaèalo snage ....................................................................................................................... 78
TEA6360, Philipsov stereo equalizer za 5 frekvencijskih podruèja .................................................................... 87
SSM2163 – digitalni 8x2 audiomikser .............................................................................................................. 89
MAX45x porodica integriranih krugova ............................................................................................................ 95
AD8113, namjenski audiopreklopnik s meðumemorijom, primjeren za upotrebu i u videosustavima ............... 97
AD5200/AD5201, ultrakompaktni digitalni potenciometri u 3 mm 2 kuæištima ................................................... 97
AD5235 – prvi dvostruki 1024-položajni digitalni potenciometar ..................................................................... 98
AD5241/AD5242, I2C digitalni potenciometar .................................................................................................. 98
SSM 2000 integrirani sklop tvrtke Analog Devices za redukciju šuma HUSH sustavom ................................... 99
Voice Direct - IC za prepoznavanje govora ...................................................................................................... 101
Praktièna primjena elektronskih cijevi u audioureðajima
EL34 - “evergreen” meðu cijevima ................................................................................................................. 106
Cijevno pojaèalo u push-pull izvedbi ............................................................................................................... 114
SRPP ili kaskodno pojaèalo ............................................................................................................................ 124
Cijevno integrirano pojaèalo ASV TA-80 ......................................................................................................... 130
Cijevno integrirano pojaèalo ASV KTA-60 u KIT kompletu .............................................................................. 140
Cijevno SE pojaèalo ASV STA-16 s 300B ........................................................................................................ 147
QRP audio ...................................................................................................................................................... 156
Dodatni sklopovi za cijevne audioureðaje ....................................................................................................... 162
Elektriène sheme za NF pojaèala malih, srednjih i velikih snaga
Tranzistorsko audio pojaèalo .......................................................................................................................... 172
Hi-Fi pojaèalo Motorola 60W .......................................................................................................................... 176
Snažno stereo pojaèalo SSM2250 pojednostavljuje prijenosne audiosustave ................................................. 180
Poveæajmo pojaèanje integriranom krugu LM386 ........................................................................................... 181
Mini pojaèalo snage 1W ................................................................................................................................. 182
Jednostavno 50W Hi-Fi pojaèalo .................................................................................................................... 184
Audio pojaèalo snage 2 x 60W ....................................................................................................................... 187
100W DMOS audiopojaèalo s MUTE/ST-BY funkcijom ................................................................................... 194
170W subwoofer pojaèalo .............................................................................................................................. 197
Pretpojaèala i kontrole
Elektronski preklopnik audiosignala ................................................................................................................ 202
NF pretpojaèalo u izvedbi s TDA1524............................................................................................................. 208
Digitalna regulacija pretpojaèala pomoæu TDA1524........................................................................................ 214
Èetverokanalni audioprocesor ........................................................................................................................ 223
SSM2166 - Mikrofonsko pretpojaèalo ............................................................................................................ 235
Mikrofonsko pretpojaèalo Daiwa..................................................................................................................... 240
Efekt za elektriènu gitaru ................................................................................................................................. 242
Izraðivati nove zvuènièke kutije ili ne?
Zvuènik - vjeèna dvojba .................................................................................................................................. 244
Održavanje i jednostavniji popravci zvuènika i zvuènih sustava ...................................................................... 270
Samogradnja zvuènièkih kutija ....................................................................................................................... 278
Pomagala i razni dodaci audioureðajima
Proraèun hladila ............................................................................................................................................. 288
Generator signala 1kHz ................................................................................................................................... 295
Modifikacija osnovnog spoja LM3914............................................................................................................ 299
DC/DC pretvaraè za upotrebu u automobilu .................................................................................................... 302
Inteligentni audio-video preklopnik ................................................................................................................. 306
20-bitni D/A pretvaraè .................................................................................................................................... 320
Redukcija šuma - HUSH sustav ...................................................................................................................... 328
Stereo koder ................................................................................................................................................... 333
Mjerenje kvalitete izlaznih tonskih transformatora .......................................................................................... 339
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