TDA7294: gudzazwi redunhu. Bridge gudzazwi redunhu TDA7294

On-Chip TDA7294 gudzazwi redunhu iri nyore, zvichaita kugona kudzokorora kunyange munhu, hachisi chaizvo simba mune zvemagetsi. Ulf Chip ichi zvaizova rakanakira kushandiswa munyika mutauri marongedzero wako musha PC, TV, cinema. Its anobatsirwei kuti haatarisiri Tuning akanaka uye kuchinja, sezvinowanzoita pamwe transistor amplifiers. Uye zvokutaura pamusoro musiyano mwenje mazano - kukura duku zvikuru.

It haatarisiri mukuru-voltage simba Kusasvika anode matunhu. Chokwadi, pane kudziyisa, sezvo ari rambi zvakagadzirwa. Naizvozvo, kana imi kuronga kushandisa gudzazwi kwenguva refu, zvakanakisisa yokugadza kuwedzera aruminiyamu kupisa singi zvakare kanenge duku dzinoshandisa chibharo kufefetedza. Kunze kwake pamusoro Micro-TDA7294 gudzazwi redunhu zvinoshanda, asi zvichida kuenda tembiricha kudzivirira.

Sei TDA7294?

Chip Izvi nevakawanda zvikuru kwemakore anopfuura 20. It akunda vavimbe redhiyo amateurs, sezvo ane yakakwirira chaizvo unongotaura amplifiers anoritsanangura nyore, wodzokorora kuvaka anogona munhu, kunyange ane ruzivo hobbyist. Gudzazwi Chip TDA7294 (zano rakapiwa munyaya) kunogona monkey uye redhiyo. The womukati nemamiriro Chip chinosanganisira munda-kushanda transistors. Audio gudzazwi yakavakwa Chip ichi, ndezvaiye boka AB.

Advantages Chip

Zvakanakira kushandisa Chips kuti ekuteerera amplifiers:

1. yakakwirira Very goho simba. About 70 Watts kana mutoro ane nemishonga of 4 ohms. Muchiitiko chino, pachirehwa zvavaisiita wedunhu ari chip.

2. About 120 W pa 8 ohms (mu zambuko redunhu).

3. A yakaderera chaizvo pamwero makuriro ruzha, avakaita haikoshi, reproducible frequencies nhema mukati zvakawanda vachinzwisisa zvakakwana nokuda kwevanhu nzeve - kubva 20 Hz 20 kHz.

4. Simba Chips zvinogona zvinoberekwa munhu DC voltage pamusoro 10-40 V. Asi panova Vakaomerwa - unofanira kushandisa Dual zvitengeswa.

Zvinokosha kucherechedza imwe kuchiitwa - kusarurama reshiyo haasi anopfuura 1%. On the Micro-redunhu TDA7294 simba gudzazwi riri nyore kuti kunyange Ndakashamiswa sezvo unokubvumira kuwana yepamusoro inzwi.

Pin basa chip fari

Zvino zvose zvakawanda nezvei zvakawanikwa anowanikwa TDA7294. The gumbo wokutanga - a "mureza pasi" zvakabatana guva waya veungano. Mhedziso "2" uye "3" - inverting uye noninverting zvinoshandisa pakurima azvaitwa. "4" ndiro goho se "mureza pasi" zvakabatana pasi. The gumbo wechishanu iri kurira kakawanda gudzazwi haisi kushandiswa. "6" gumbo - kuitika-chirungiso, electrolytic capacitor zvakabatana naro. "7" uye "8" mhedziso - plus uye kubvisa simba chiyamuro mumatanho azvaitwa. Gumbo "9" - Standby nzira inoshandiswa nokudzora chikwata.

Saizvozvowo, "10" gumbo - muting muoti rinoshandiswawo rokuvaka kudzorwa unit iri gudzazwi. "11" uye "12" zviteshi haana kushandiswa magadzirirwe ekuteerera amplifiers. C "14" goho chiratidzo chinobviswa kure uye zvokudya kumutauri hurongwa. "13" nembambo "15" kuti - a "+" uye "-" kubatanidza simba goho rwakazara. On-Chip redunhu TDA7294 gudzazwi subwoofer haana kusiyana nevaya wakatangwa munyaya, zvinonzi vaisanganisa pamwe chete munhu pasi vanopfuura Sefa, iyo zvakabatana mazano.

Features micro

Kana afunge Audio gudzazwi zvinokosha kuti unyatsoteerera mumwe chinhu - kubvisa zvokudya, uye kuti makumbo "15" uye "8" vari electrically kunofambidzana kuti Chip muviri. Naizvozvo zvakafanira kuti achipfigire kubva redhiyeta, izvo chero zvazvingava richashandiswa munyaya gudzazwi. Nokuti chinangwa ichi zvakakosha kushandisa chaihwo chafariz spacers. Kana ukashandisa bhiriji redunhu gudzazwi TDA7294, teererai musimboti muviri. Zvingava kutwasuka kana chinjikira mhando. Rakajairika chiri musimboti, kunzi TDA7294V.

Protective mabasa IC TDA7294

The Chip inopa mhando dzakawanda yokudzivirira, kunyanya, ari differential voltage. Kana pakarepo voltage shanduko, ipapo Chip vachaenda dziviriro muoti, naizvozvo, haangavi magetsi kukuvara. The goho Danho anewo kudzivirira overloads nematunhu pfupi. Kana dzimba iri neshungu kuti tembiricha kuti 145 inegumi, mutsindo iri muted. Paaizosvika madhigirii 150 pane yezwi standby nzira. mhedziso All TDA7294 Chip anodzivirirwa electrostatic.

simba gudzazwi

Simple, nyore wose, uye Chikurukuru - husingakoshi. Maawa mashomanana unogona kuvaka zvakanaka zvakarekodhwa gudzazwi. Vakawanda nguva yaunopedza pariri kuita etching ari bhodhi. The mamiriro vanosanganisira chete gudzazwi simba uye kuzvidzora zviyero, uyewo 2 mugero wacho Ulf. Edzai shoma sezvinobvira kuti waya akashandiswa gudzazwi kugadzirwa. Omerera nyore kutevedzera:

1. fanira chinodiwa - kubatana waya simba wedzerai nerimwe puranga zvakarekodhwa AMP.

2. Sungirira Mumakwara joko. With ichi kubhadhara zvishoma nokuda remagineti akasikwa magetsi. Kuti aite izvi, unofanira kutora zvose romugove waya matatu - "mukuru", "kubvisa" uye "pamwe", ne zvishoma mumakakatanwa kuti micheka vapinde ruka.

3. Hapana nyaya regai kushandisa kuvaka vanonzi "pasi zvishwe." Izvi ndozvazvakaita kana chimwe waya unobva zvose STRUCTURAL dzakabatana, akavharwa ari loop. Pasi waya zvinokosha kupa sequentially, kubvira mazano vhoriyamu kuzvidzora, mberi kune okuteerera BSN bhodhi uye anofanira kuguma muna goho zviteshi. Zvinokosha kubatanidza mazano redunhu kushandisa zvaitawo waya ari zindoga.

rudzi kuzvidzora chikwata standby uye mbeveve

Chip ichi ane standby rudzi uye mbeveve. Kuti aite mabasa anodiwa kudzora kushandisa "9" mhedziso uye "10". Simba kunoitika kana izvi makumbo Chips hakuna makakatanwa, kana zviri zvishoma pane imwe nehafu volts. Kuti Activate, unofanira kushandisa netsoka Chip voltage, kukosha rinopfuura 3.5V kudzora gudzazwi mapuranga yakaitika panguva, izvo zvakakosha kuti zvirongwa inobva mhando zambuko, kuenda imwe kudzora chikwata nekuda mumatanho zvose.

Kana simba dzikava pamusoro, capacitors vose mhosva pasimba rive. The kuzvidzora chikwata mumwe capacitor rinoungana mutariri. Kana kuunganidza kufadza zvinoita mutariri vachienda standby. A chechipiri capacitor kuti rinoshandiswa kudzorwa Unit, ndiye anokonzera mbeveve nzira. Ari uchiraira zvishoma kwapera, saka zevezeve muoti akatendeuka kure wechipiri.