DIY SR Latch Tawm ntawm Transistors: 7 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Ib qho latch SR yog ib hom Circuit Court uas hu ua "bistable." Bistable circuits muaj ob lub xeev ruaj khov, yog li lub npe BI-ruaj khov. Ib qho ntawm qhov hloov pauv yooj yim ntawm hom kev sib txuas no yog SR latch, uas sawv rau "Teeb/Rov Pib Latch." SR qhov tseem ceeb tshaj plaws yog siv rau kev nco, vim tias tom qab koj xaiv tus nqi, nws yog 'kaw' yog li yog tias tsis muaj kev hloov pauv hauv cov tswv yim, lossis cov tswv yim tig tawm, cov txiaj ntsig nyob zoo ib yam.

Kauj Ruam 1: Tsim

Ntawm qib siab tshaj plaws ntawm kev tsim peb muaj ob lub rooj NOR txuas nrog lawv cov txiaj ntsig tau khi rau ib qho ntawm lwm qhov kev nkag mus. Cia peb xav los ntawm qhov no: Yog tias cov zis tau hais tias Q yog 0, tom qab ntawd peb qhib lub S input, tom qab ntawd cov qhov rooj ntawm NOR yuav yog 0 (vim tias qhov tso tawm ntawm ib txwm LOS YOG rooj vag yog 1 yog ib qho, lwm qhov, lossis ob qho tib si ntawm kev nkag siab yog qhov siab) uas, yog R tawm, yuav tig rau lwm lub NOR rooj vag, thiab rub Q tso zis siab. Hauv lub xeev no qhov twg Q yog siab, yog tias peb qhib S tsis muaj dab tsi tshwm sim rau lub xeev tso tawm, vim tias NOR lub qhov rooj qis hauv qab twb tau ua haujlwm thiab sab saum toj tsis muaj kev cuam tshuam. Tab sis yog tias, nyob hauv lub xeev no, peb qhib qhov rov pib ua tswv yim, tib yam uas twb tau tshwm sim yuav tshwm sim tsom iav thiab Q tso tawm yuav tig tawm.

Txhawm rau kom NOR lub rooj vag tawm ntawm transistors, peb tuaj yeem tsim lub rooj OR ib txwm muaj (nrog cov transistor Collectors thiab emitters nyob rau hauv ib txhij), thiab tsuas yog khi cov emitters rau hauv av, thiab cov zis mus rau rub-resistor.

Cov kauj ruam tom ntej yog tsuas yog khi cov hom NOR rooj vag hauv lub koom haum ntawm SR latch. Txij li lub transistor yog qhov hloov pauv tam sim no, peb yuav tsum tau txiav txim siab qee yam txog cov resistors uas peb siv. Qhov tseem ceeb peb yuav tsum nco ntsoov yog tias peb cov txiaj ntsig tau faib rau hauv cov khoom sib luag, ib qho tsav tsheb tso tawm LED, thiab lwm qhov tsav lub qhov rooj ntawm lwm lub qhov rooj NOR. Kuv kos cov txheej txheem yooj yim ntawm cov kab hluav taws xob tso tawm no txhawm rau xaiv qhov ntsuas qhov ntsuas, piv txwv tias peb xav kom peb lub hauv paus tam sim no yog 0.0001 Amperes, thiab peb cov LED tam sim no yog 0.01 Amperes. Kuv txhawb koj kom saib cov txheej txheem thiab pom tias koj tuaj yeem tuaj yeem txiav txim siab ib yam li kuv tau ua, thiab yog tias koj los txog qhov kev txiav txim siab sib txawv txog qhov muaj txiaj ntsig resistor muab nws sim hauv koj lub Circuit, thiab qhia rau kuv paub nws li cas mus!

Kauj Ruam 2: Thawj Pawg Thawj Coj Teeb

Cov hlua hluav taws xob yuav tsum tau sib koom ua ke thiab txhua yam yuav tsum tau siv nrog qee yam ntawm 5V lub zog siv hluav taws xob, xws li Arduino lossis lab lub rooj zaum hauv lub zog. Xijpeem koj xaiv, sim kom tau txais qhov txwv tam sim no yog li koj tsis hlawv dab tsi ntawm kev sib tsoo.

Kauj Ruam 3: Ntxiv Transistors thiab LEDs

Kauj ruam 4: Ntxiv Resistors

Kauj Ruam 5: Ntxiv Cov Txuas Txuas

Kauj Ruam 6: Xeem

Tam sim no koj muaj nws txhua qhov sib ntsib muab nws tua! Sim teeb nws, rov kho nws, teeb nws tom qab teeb nws dua, thiab rov pib dua nws ob zaug. Yog tias qee yam tsis ua haujlwm zoo li nws yuav tsum, ntsuas tam sim no los ntawm LEDs thiab pom tias nws ua haujlwm li cas, tsuas yog qis dua tam sim no los tsav cov LEDs. Lwm yam los sim yuav yog qhov tsis kam ntawm txhua lub NOR rooj vag thaum lawv xav tias yuav tsum tau ua haujlwm. Ib qho kev tawm tsam uas tsis yog ib puag ncig 0 Ohms yuav txhais tau tias cov zis tau sim rub ntau dhau tam sim no (ntau dua 100-150x lub hauv paus tam sim no ib daim ntawv ntawm 2N2222, transistor kuv siv) uas tuaj yeem txhais tau tias lub hauv paus tam sim no qis dhau, lossis cov zis tam sim no siab dhau (Uas yuav tsum tsis yog li yog tias koj cov LEDs raug tam sim no txwv).

Kauj Ruam 7: Nrhiav Ntxiv?

Yog tias koj nyiam qhov koj pom hauv Phau Ntawv Qhia no, thov txiav txim siab txheeb xyuas kuv phau ntawv tshiab "Phau Ntawv Qhia Pib rau Arduino." Nws muab ib qho kev qhia meej txog yuav ua li cas Arduino platform ua haujlwm nyob rau hauv ib txoj hauv kev uas yog siv tau thiab cuam tshuam.