AVT5789 LED dimming controller ine padyo sensor

Mutyairi anokurudzirwa mitsara ye LED uye mamwe 12V DC LED marambi asina ikozvino uye voltage regulation, pamwe neyechinyakare 12V DC halogen uye incandescent mwenje. Kuunza ruoko rwako padhuze ne sensor inomutsa sisitimu, ichivhenekera zvinyoro nyoro sosi yemwenje yakasungirirwa kune inobuda system. Mushure mokuswedera kwemaoko, ichava yakatsetseka, zvishoma nezvishoma kupera.

Iyo module inopindura kune yakavharwa kubva kure ne 1,5 ... 2 cm. Nguva yekushanda kwechiedza uye kusviba inenge 5 seconds. Iyo yese yekujekesa maitiro inoratidzwa nekupenya kwe LED 1, uye kana yapera, iyo LED ichave yakavhenekerwa zvachose. Mushure mekupera kwekudzima, iyo LED ichadzima.

Kuvaka uye kushanda

Dhidhiyo yedunhu remutongi inoratidzwa muMufananidzo 1. Yakabatanidzwa pakati pemagetsi uye mugamuchiri. Inofanirwa kufambiswa nemagetsi anogara aripo, inogona kunge iri bhatiri kana chero sosi yemagetsi ine mutoro wazvino unoenderana nemutoro wakabatana. Diode D1 inodzivirira kubva pakubatana kwevoltage neiyo polarity isiriyo. Mhepo inopinza inopihwa kune iyo stabilizer IC1 78L05, capacitors C1 ... C8 inopa kukwenenzverwa kweiyo voltage.

Mufananidzo 1. Controller Wiring Diagram

Iyo sisitimu inodzorwa neIC2 ATTINY25 microcontroller. Iyo actuating element is transistor T1 mhando STP55NF06. Imwe nyanzvi yeAT42QT1011 chip kubva kuAtmel, yakasarudzwa se IC3, yakashandiswa sechinhu chinotarisa pedyo. Iyo inoshongedzerwa nemunda mumwe wepedyo uye kubuda kwedhijitari inoratidza yakakwira mwero kana ruoko rwasvika kune sensor. Rudzi rwekutsvaga runogadziriswa ne capacitance ye capacitor C5 - inofanira kunge iri mukati me2 ... 50 nF.

Muchigadziro chemuenzaniso, simba rinosarudzwa kuitira kuti moduru ipindure kune pedyo-kubva kure kure ne 1,5-2 cm.

Kuiswa uye kugadzirisa

Iyo module inofanira kuunganidzwa pabhodhi redunhu rakadhindwa, dhiyabhorosi yegungano iyo inoratidzwa muMufananidzo 2. Gungano regadziriro yakajairika uye haifaniri kukonzera matambudziko, uye module inokurumidza kugadzirira kushanda mushure megungano. Pamusoro pemuonde. 3 inoratidza nzira yekubatanidza.

Mupunga. 2. PCB marongerwo ane zvinhu gadziriro

Iyo yepedyo sensor yekupinda yakanyorwa S inoshandiswa kubatanidza nzvimbo yepedyo. Izvi zvinofanirwa kunge zviri pamusoro pezvinhu zvinoitisa, asi zvinogona kuvharwa ne insulating layer. Iyo sero inofanirwa kuve yakabatana kune system neiyo ipfupi tambo inobvira. Hapafanirwe kuve nedzimwe waya dzekufambisa kana nzvimbo dziri pedyo. Iyo isiri-yekubata munda inogona kuve mubato, simbi kabati mubato, kana aruminiyamu mbiri ye LED mitsetse. Bvisa iyo system simba uye wobatidza zvakare pese paunotsiva iyo yekubata munda chinhu. Izvi zvinodikanwa zvinotemerwa nenyaya yekuti pakarepo mushure mekuvhurwa kwesimba kunotariswa kwenguva pfupi uye kuenzanisa kwe sensor uye nzvimbo yepedyo inoitika.

Mufananidzo 3. Dhidhiyo yekubatanidza dhizaini

Zvese zvinodikanwa zvepurojekiti iyi zvinosanganisirwa muAVT5789 B kit yePLN 38, inowanikwa pa: