I-AVT5789 - Isilawuli sokukhanya kwe-LED esifiphalisayo nesifiphali esinenzwa yokusondela

Umshayeli utuswe ngemichilo ye-LED kanye namalambu e-LED angu-12V DC ngaphandle kokulawulwa kwamandla kagesi, kanye namalambu endabuko angu-12V DC namalambu e-incandescent. Ukusondeza isandla sakho eduze kwenzwa kwenza isistimu isebenze, kukhanyisa ngobumnene umthombo wokukhanya onamathiselwe ku-outlet yesistimu. Ngemva kokusondela kwezandla, kuyoba bushelelezi, kancane kancane iyancipha.

Imojula iphendula ekusondeleni ukusuka ebangeni lika-1,5 ... 2 cm. Ubude bomsebenzi wokukhanyisa nobumnyama cishe imizuzwana emi-5. Yonke le nqubo yokucacisa iboniswa ukukhanya kwe-LED 1, futhi ngemva kokuba isiqediwe, i-LED izokhanyiswa unomphela. Ngemuva kokuphela kokucisha, i-LED izocisha.

Ukwakhiwa nokusebenza

Umdwebo wesifunda wesilawuli uboniswa kuMfanekiso 1. Ixhunywe phakathi kokunikezwa kwamandla kanye nomamukeli. Kumele inikezwe amandla amandla kagesi angashintshi, ingaba ibhethri noma yimuphi umthombo wamandla onomthwalo wamanje ohambisana nomthwalo oxhunyiwe. I-Diode D1 ivikela ekuxhumekeni kwe-voltage ne-polarity engalungile. I-voltage yokufaka inikezwa ku-stabilizer IC1 78L05, ama-capacitor C1 ... C8 ahlinzeka ngokusefa okulungile kwale voltage.

Umfanekiso 1. Umdwebo wezintambo zesilawuli

Uhlelo lulawulwa yi-IC2 ATTINY25 microcontroller. I-elementi esebenzayo iwuhlobo lwe-transistor T1 i-STP55NF06. I-chip ekhethekile ye-AT42QT1011 evela e-Atmel, eqokwe njenge-IC3, yasetshenziswa njengomtshina wokusondela. Ifakwe inkambu eyodwa eseduze kanye nokuphumayo kwedijithali okubonisa izinga eliphezulu uma isandla sisondela kunzwa. Ububanzi bokubona bulawulwa amandla e-capacitor C5 - kufanele kube ngaphakathi kwe-2 ... 50 nF.

Kuhlelo lwemodeli, amandla akhethiwe ukuze imodyuli iphendule ekusondeleni ukusuka ebangeni lika-1,5-2 cm.

Ukufakwa nokulungiswa

I-module kumele ihlanganiswe ebhodini lesifunda eliphrintiwe, umdwebo womhlangano okhonjiswe ku-Figure 2. Umhlangano wesistimu ujwayelekile futhi akufanele ubangele izinkinga, futhi imodyuli isilungele ukusebenza ngemva komhlangano. Emkhiwaneni. 3 ikhombisa indlela yokuxhuma.

Ilayisi. 2. Isakhiwo se-PCB esinokuhlelwa kwezinto

Okokufaka kwenzwa ye-proximity emakwe S isetshenziselwa ukuxhuma inkambu eseduze. Lokhu kumele kube ubuso bezinto eziqhutshwayo, kodwa zingambozwa ngesendlalelo se-insulating. Iseli kufanele lixhunywe kusistimu ngentambo emfushane kakhulu. Akufanele kube nezinye izintambo ezisetshenziswayo noma izindawo eduze. Inkambu okungeyona eyokuthintwa ingaba isibambo, isibambo sekhabhinethi yensimbi, noma iphrofayela ye-aluminium yemigqa ye-LED. Vala amandla esistimu uphinde uvule futhi njalo uma ushintsha ingxenye yenkambu yokuthinta. Lesi sidingo sinqunywa yiqiniso lokuthi ngokushesha ngemva kokuba amandla evuliwe lapho isheke lesikhashana esifushane kanye nokulinganiswa kwenzwa kanye nenkambu eseduze kwenzeka.

Umfanekiso 3. Umdwebo woxhumano lwesilawuli

Zonke izingxenye ezidingekayo zale phrojekthi zifakiwe kukhithi ye-AVT5789 B ye-PLN 38, etholakala ku-: