Kodi kukoka panopa, ulimi wothirira ndi chiyani?

Kukoka pakali pano ndi ulimi wothirira ndi magawo a kuyeza mphamvu zamagalimoto zotuluka (zindikirani: kukoka ndi ulimi wothirira zonse ndi zomaliza, kotero ndi mphamvu ya dalaivala) magawo. Mawu awa nthawi zambiri amagwiritsidwa ntchito m'mabwalo a digito.

Apa tiyenera choyamba kufotokoza kuti kukoka ndi ulimi wothirira panopa mu Chip Buku ndi mtengo chizindikiro, amene ali chapamwamba malire a linanena bungwe terminal kukoka ndi ulimi wothirira panopa dera lenileni (analola pazipita makhalidwe).

Lingaliro lotchulidwa pansipa ndilofunika kwenikweni mu dera.

Chifukwa mabwalo a digito amangokwera, otsika (0, 1), mtengo wamagetsi:

Pamene kutulutsa kwapamwamba kumatuluka, zotulukazo nthawi zambiri zimaperekedwa ku katunduyo. Mtengo wamakono umatchedwa "kukoka panopa";

Pamene otsika -level kutulutsa nthawi zambiri kumakhala komweko kuti mutenge katundu, mtengo wa mayamwidwe wapano umatchedwa "mthirira (kulowa) wapano".

Pachida cholowetsa:

Zomwe zikubwera komanso zoyamwitsa ndizolowera. Pakali pano ndi chabe, ndipo mayamwidwe panopa ndi yogwira.

Ngati kunja panopa akudutsa Chip pini, ndi 'kuyenderera' mu Chip amatchedwa ulimi wothirira panopa (kukhala wothirira);

Mosiyana ndi zimenezo, ngati mphamvu yamkati kupyolera mu chip pin kuchokera ku chip 'yoyenda' imatchedwa kukoka panopa (kutulutsidwa);

Chifukwa chiyani ndimatha kuyeza kuchuluka kwa magalimoto? mphambano

Pamene zomveka chitseko linanena bungwe ndi otsika, yapano yomwe imathiriridwa pakhomo la logic imatchedwa njira yothirira. Kuchuluka kwa ulimi wothirira panopa, ndipamwamba kwambiri mlingo wochepa wa mapeto otuluka. Itha kuwonekanso kuchokera kumayendedwe amtundu wa triode. Kuchuluka kwa ulimi wothirira panopa, kutsika kwa magetsi ochulukirapo, komanso kutsika kwakukulu. Komabe, kutsika kwa chitseko cha logic kumakhala kochepa, ndipo kumakhala ndi UOLMAX wapamwamba kwambiri. Pogwira ntchito pakhomo la logic, sikuloledwa kupitirira mtengo uwu. Mafotokozedwe a chitseko cha logic ya TTL amatchula UOLMAX ≤0.4 ~ 0.5V. Choncho, pali chapamwamba malire ulimi wothirira panopa.

Pamene zomveka khomo linanena bungwe mapeto ndi mkulu, yapano yomwe ili kumapeto kwa chitseko chomveka bwino ikutuluka pakhomo lomveka. Mphamvu imeneyi imatchedwa kukoka mphamvu. Chikoka chamakono chokulirapo, m'munsi mwake chimachokera kumapeto. Ichi ndi chifukwa linanena bungwe - mlingo triode ali kukana mkati, ndi voteji dontho pa kukana mkati kuchepetsa linanena bungwe voteji. Chikoka chamakono chokulirapo, m'munsi mwake chimachokera kumapeto. Komabe, mlingo wapamwamba wa chitseko cha logic ndi chochepa, ndipo uli ndi UOHmin yochepa. Pogwira ntchito pakhomo la logic, sikuloledwa kupitirira mtengo uwu. Mafotokozedwe a TTL logic door specifications uohmin ≥2.4V. Choncho, palinso malire apamwamba a kukoka panopa.

Zitha kuwoneka kuti pali malire apamwamba pa kukoka panopa ndi ulimi wothirira panopa pamapeto otuluka. Apo ayi, pamene kutulutsa kwapamwamba, kukoka kwamakono kudzatsitsa mlingo wotuluka kuposa UOHMIN; pamene otsika -level linanena bungwe, ulimi wothirira panopa kupanga mlingo linanena bungwe apamwamba kuposa UOLMAX.

Choncho, kukoka ndi ulimi wothirira panopa zimasonyeza linanena bungwe pagalimoto mphamvu. (Chikoka chachikulu cha Chikoka ndi mtengo wothirira pakalipano, zikutanthauza kuti chipangizochi chimatha kulumikiza katundu wambiri, chifukwa, monga kuthirira ndi katundu, m'pamenenso katundu wambiri;

Chifukwa cholowetsa chapamwamba kwambiri ndi chaching'ono, pamlingo wa micro-level, nthawi zambiri sichiyenera kuganiziridwa. Kutsika kwapano ndi kwakukulu komanso pamlingo wa milliamp.

Choncho, nthawi zambiri palibe vuto ndi otsika mlingo wothirira panopa. Gwiritsani ntchito fan kuti mufotokoze kuthekera kwa chitseko chomveka kuyendetsa zitseko zofanana. Kukupiza kunja kwachifundo ndi chiŵerengero cha otsika -level pazipita zotuluka panopa ndi pazipita zolowera panopa mlingo otsika.

Mu dera Integrated, kuyamwa panopa, kukoka linanena bungwe panopa ndi ulimi wothirira linanena bungwe panopa ndi mfundo yofunika kwambiri.

Kokani ndi kutayikira, kutulutsa kogwira ntchito, kumachokera ku zomwe zatuluka;

Kuthirira ndikulipiritsa, kulowetsedwa kwaposachedwa, komwe kumayenda kuchokera padoko lotulutsa;

Kuzunzika ndikupumira mphamvu yapano, yomwe imayenda kuchokera padoko lolowera. 

Kukoka kwapano ndi ulimi wothirira ndizomwe zikuyenda mu chip kuchokera kudera lakunja la chip. Kusiyana kwake ndikuti mayamwidwe apano akugwira ntchito, ndipo mayamwidwe apano amayenda kuchokera kumapeto kwa chip. Kuthira kwapano sikungokhala, ndipo komwe kumayenda kuchokera kumapeto komwe kumatuluka kumatchedwa kuti panopa.

Kukoka kwaposachedwa ndiko kutulutsa komweko komwe kumaperekedwa ndi gawo la digito lotulutsa mulingo wapamwamba pakunyamula. The linanena bungwe otsika mlingo pamene ulimi wothirira panopa ndi athandizira panopa dera digito. Iwo kwenikweni athandizira ndi linanena bungwe luso panopa.

Mayamwidwe apano ndi a malo olowera (zolowera kumapeto), ndipo kukoka kwapano (kutulutsa kotulutsa kumatuluka) ndi kuthirira pano (mapeto ake amathiriridwa) ndizotuluka.