Mune ino positi, isu tichaongorora iyo pinout, basa, uye yekubatanidza schematics ye ULN2003, pamwe chete nemuenzaniso wekushandisa, kuwedzera kune basa rayo semutongi we relay. Nenzira iyi tinowedzera chimwezve chikamu chitsva kune yedu refu runyorwa yemidziyo yakaiswa.
Chii chaunoda ULN2003?
A single control unit ine seti ye kudzora mabasa iyo inodzora mazinga emagetsi pane zvavanopinza uye zvinobuda, pamwe chete nenguva, PWM, zvinokanganisa, uye nzira dzekuchinja. Aya mabasa ekudzora anotitendera kuburitsa akawanda mabasa pasina kukanganisa iyo yese controller redunhu. Kugadzira mashandiro akawanda, mutongi ari nyore uye processor akashandiswa. Dambudziko raive rekudzikisa kutenderera kweyakakwira voltage yakananga ikozvino michina.
ari dc mota High voltage yanga yashandiswa zvakanyanya nekuda kwesimba rayo. Dambudziko raive rekudzora uye kuderedza dunhu repamusoro voltage DC michina. Kudzora high-voltage DC mitoro inosvika 50 V uye 500 mA, logic circuit ine Darlington transistor (NPN) yakashandiswa. Dunhu iri raingokwanisa kudzora mutoro mumwe chete. Kugadzirisa dambudziko iri, ULN2003 ICs yakaunzwa.
Chii chinonzi ULN2003?
Iyi IC ine sarudzo yakawanda yemashandisirwo. Inogona kudzora mitoro minomwe panguva imwe chete uchishandisa nomwe Darlington transistors. Iyo ULN2003 inowanikwa mumhando dzakasiyana dzepakeji seSOP, PDIP, TSSOP, uye SOIC. Iyo ULN2003 ine mapini manomwe ekubuda anogona kushandiswa akazvimiririra epini yekupinza kugadzira transistor wedunhu. Iyo IC inowirirana nechero dunhu pasina kutora nzvimbo yakawanda.
Sezvo magetsi ekubuda akazvimirira pane ekuisa voltage, anogona kushandiswa mune chero dunhu senge microcontroller kana microprocessor. Iyo voltage renji yezvitakurwa ndeye 50V, asi yazvino huwandu ndeye 500mA. Rudzi urwu runogona kuwedzerwa kana mapini akawanda ekubuda akashandiswa. Iyo ULN2003 inodzivirirwa kubva kune counter frequency uye ine hurongwa hwekuchengetedza mukati kurwisa recoil kudzivirira mudziyo.
Hunhu hweULN2003
Kana zvakadaro zvinhu zvakatanhamara yeULN2003 ndeiyi:
- Inogona kubata voltages kusvika ku50V (kune shanduro dzinogona kushivirira kusvika ku100V).
- Iyo yazvino iyo inogona kubatika inosvika 500mA yekuisa yega yega.
- Inosanganisira yemukati clap diode kuchengetedza mudziyo.
- Iyo ine zvakare yemukati flyback system kuchengetedza uye pini imwe inogona kushandiswa inductive kuchaja.
- Inogona kunyatsobatanidzwa ne microcontrollers uye Arduino-mhando mabhodhi.
- Inoenderana neTTL logic uye 5v CMOS.
- Iyo ULN2003 chip inogona kuuya mumapakeji akasiyana seSOP, TSSOP, PDIP, nezvimwe.
- Kazhinji, pamusika inouya nezvimwe zvekuwedzera zvakaiswa pane module kuti ifambise kubatana.
Pinout
Iyo DIP chip yeULN2003 inoumbwa ne 16 mapini. Aya ndiwo nhevedzano yezvakaiswa uye zvinobuda izvo zvandinotsanangura pano:
- Input 1: Iri pini rinoshandiswa kudzora rinoenderana kubuda (kubuda 1). Kana yakakwira (5v) ipapo pachave nekubuda, zvikasadaro hapazovepo.
- Input 2: Zvakafanana nepamusoro, asi zvinokanganisa kubuda 2.
- Input 3: zvakafanana, mune ino yekubuda 3.
- Input 4: zvakafanana, zvekubuda 4.
- Input 5: ditto, mune iyi nyaya yekubuda 5.
- Input 6: sepamusoro, asi yekubuda 6.
- Input 8: yakafanana asi inoshandiswa pakubuda 7.
- GND: Iyi pini nhamba 8 inoshandiswa pasi uye ichabatanidzwa kune magetsi.
- COM: Pini iyi inogona kushanda akawanda mabasa. Inowanzo shandiswa sepini yekuyedza kuvhura zvese zvinobuda. Inogonawo kushandiswa se inductive load.
- Kubuda 7: ndiyo inobuda inodzorwa nekuisa 7 uye chero 50V uye 500mA mutoro unogona kubatana.
- Output 6: Zvakafanana nepamusoro, asi zvakakanganiswa nekuisa 6.
- Kubuda 5: zvakafanana, asi iyo inoenderana nekuisa 5.
- Output 4: yakafanana nepamusoro, asi inodzorwa nekuisa 4.
- Output 3: zvakafanana, asi ndiyo inoenderana nekuisa 3.
- Output 2: sepamusoro, asi inoenderana nekuisa 2.
- Output 1: inodzorwa nekuisa 1, asi iine maitiro akafanana neaya apfuura.
Sezvauri kuona, izvo zvinopinda uye zvinobuda zvinodzoserwa kumashure muhurongwa, saka chenjera neizvi. Kuti uwane rumwe ruzivo, unogona kudhawunirodha iyo datasheet mugadziri kubva kwawakatenga iyo ULN2003 chip kana module.
Applications
Zvimwe zve maapplication akanyanya chip ichi chinogona kuva:
- Mutongi anosvika 7 relays kana stepper motors.
- Kudzora inductive mitoro.
- Dzora mutoro wakakwirira mwenje we LED.
- Ishandiswe senge logic buffer mumazhinji edhijitari emagetsi maseketi.
- nezvimwewo
Iyo ULN2003 inoshandiswa sei
Kwatenga
Kana uchida tenga imwe yeiyi ULN2003, une zvakawanda zvingasarudzwa, zvingave zvitenga mumodule kana kutenga chip chete. Vanotengesawo kits ine injini uye zvibatanidza zvinodiwa kuti utange. Sarudzo ndeyako. Chero zvazvingava, zvakachipa. Heano mamwe mazano:
