SLKOR I-SL-S-TRS-5.5Dx Digital Infrared Thermopile Chip Solution

Izisebenzi eziyinhloko zezobuchwepheshe zaseShenzhen SLKOR I-Micro Semicon Co., Ltd. ivela eNyuvesi yaseTsinghua kanye neNyuvesi yaseYonsei eNingizimu Korea. Bahola ukuthuthukiswa kwenkampani ngezinto ezintsha, izinqubo ezintsha kanye nemikhiqizo emisha, futhi sebekwazi kahle ubuchwepheshe bedivaysi yamandla we-semiconductor ye-silicon carbide yesizukulwane sesithathu ehamba phambili emhlabeni wonke kusenesikhathi.

SLKOR iyibhizinisi lobuchwepheshe obuphezulu elihlanganisa ukuklama, ukuthuthukiswa, ukukhiqizwa nokuthengiswa kwezingxenye ze-elekthronikhi. Ihlinzeka ngemikhiqizo ethembekile kanye nezinsizakalo zobuchwepheshe ezisekela amakhasimende. I-"SLKOR"Umkhiqizo usuthuthuke kancane kancane waba uphawu oludumile emhlabeni wonke futhi uyakhula kanye nabalingani abangaphezu kuka-10,000 emhlabeni jikelele.

Emzamweni wokunikeza amakhasimende uhla olugcwele lwemikhiqizo nezixazululo ezihambisanayo, SLKOR manje yethule uchungechunge lwezifundo zokusetshenziswa zamabhodi edemo edizayini yedemo ye-infrared thermopile engathintana naye yokulinganisa izinga lokushisa.

1.1 Igama: SLKOR Isicelo Sesilinganiso Sezinga Lokushisa Esingebona Oxhumene Ne-Infrared Thermopile.

Izicelo: Imishini egqokekayo ehlakaniphile, amafoni ahlakaniphile, ukuqapha izinga lokushisa kwezimboni, ukukalwa kwezinga lokushisa komzimba womuntu endaweni engathinteki, inzwa yokushisa ehlakaniphile nokulawula namanye amadivaysi anosayizi omncane wokulinganisa izinga lokushisa lebanga elifushane.

1.3 Umsebenzi we-chip:

The SLKOR I-SL-S-TRS-5.5Dx iyi-chip yedijithali ye-infrared thermopile ebekwe phezulu yezinhlelo zokusebenza zokulinganisa izinga lokushisa okungaxhunywana naye. I-chip iqukethe i-NTC, i-thermopile ye-infrared, i-signal conditioning circuit kanye ne-ADC yokulungiswa okuphezulu. Abasebenzisi bangaxhumana ngokuqondile nenzwa ngebhasi le-I2C ukuze bafunde idatha ngaphandle kwamanye ama-peripheral. Idatha yesampula ehambisana ne-NTC kanye ne-thermopile itholakala ku-ADC, bese i-MCU iguqula idatha eluhlaza ibe yinani lokushisa elidingwa ngumsebenzisi. Ingasetshenziswa endaweni yokushisa engu -40°C kuya ku-130°C, futhi izinga lokushisa lokulinganisa libanzi, phakathi kuka -40°C no-530°C.

2. Umdwebo Womjikelezo Wesicelo Ojwayelekile

2.1 Umgomo Wesekethe:

Izikhonkwane ze SLKOR I-SL-S-TRS-5.5Dx chip ifaka phakathi ukunikezwa kwamandla, ibhasi le-I2C kanye nokulungiselelwa kwekheli elilodwa. Ububanzi obuvumelekile be-voltage yokuhlinzeka ngu-2.5 - 5V. Idatha nemigqa yewashi ye-I2C idonswa phezulu. Iphinikhodi ye-ADDR iyingxenye ebaluleke kakhulu yekheli le-I2C ledivayisi. Uma singekho isidingo sokusebenzisa izinzwa ezimbili, ingaxhunywa ngokuqondile ku-GND noma ku-VCC. Inzwa ngokwayo inokusetshenziswa kwamandla okuphansi kakhulu. I-capacitor engu-0.1uF phakathi kokunikezwa kwamandla nomhlabathi yanele. Uma inzwa ikude kakhulu nengxenye yokunikezwa kwamandla, i-capacitor eyengeziwe ye-10uF ingacatshangelwa ukuze kuqinisekiswe ukuzinza kokunikezwa kwamandla.

I-2.2 The SLKOR I-SL-W-TRS-5.5Dx chip inikeza iphrothokholi yokuxhumana ye-I2C yokuxhumana kwe-serial. Ukukhethwa kwephrothokholi yokuxhumana kususelwa kusimo se-CSB. Ibhasi le-I2C lisebenzisa i-SCL ne-SDA njengemigqa yesignali. Yomibili imigqa ixhumeke ngaphandle ku-VDDIO ngokusebenzisa izixhasi zokudonsa ukuze ihlale isezingeni eliphezulu uma ibhasi lingenzi lutho. Ikheli lechip le-I2C le-SL-S-TRS-5.5D1 liboniswa kuthebula elilandelayo. Ibhithi ebaluleke kakhulu (LSB) yekheli ledivayisi engu-7-bit inqunywa iphinikhodi ye-SDO. Uma i-SDO ixhumeke ku-VDDIO, ikheli le-7-bit I2C lithi "1101101". Uma i-SDO ixhumeke ku-GND, ikheli le-7-bit I2C lithi "1101100" (njengoba kukhonjisiwe esithombeni esingezansi). 

I-I2C Ikheli le-Chip

I-I2C Bus Line Izimpawu

I-I2C Isikhathi Umdwebo

I-I2C Communication Protocol

2.3 Uma i-SCL isezingeni eliphezulu futhi i-SDA inezinga eliwayo ngesikhathi esisodwa, iphawula ukuqala kokuxhumana kwedatha ye-I2C. Umshini oyinhloko we-I2C uthumela ikheli ledivayisi yesigqila (amabhithi angu-7) ngokulandelana, bese ibhithi yokulawula isiqondiso i-R/W isetshenziselwa ukukhetha umsebenzi wokufunda noma wokubhala. Uma idivayisi yesigqila ibona leli kheli, ikhiqiza isignali yokuvuma futhi idonsela phansi i-SDA phakathi nomjikelezo wesishiyagalolunye we-SCL (ACK). Uma i-SCL isezingeni eliphezulu futhi i-SDA inomkhawulo okhuphukayo, ibonisa ukuphela kokuxhumana kwedatha ye-I2C. Idatha edluliselwa ku-SDA kufanele ihlale izinzile uma i-SCL iphezulu. Kuphela uma i-SCL iphansi lapho inani elidluliselwe ku-SDA lingashintshwa.

3.SMD - 6P, 4.7x3.8mm Iphakheji nobukhulu

3.1 Iphini Incazelo

Izinto Ezithinta Ukukalwa Kwezinga Lokushisa

4.1 Umthelela Wokuvumelana Kwe-chip

Ngohlobo olufanayo lwenzwa ye-thermopile, izici zayo zokuphuma zilungisiwe. Lapha, "izimpawu" zibhekisela "ekuthambekeni" okungaguquguquki kokuthi ukukhishwa kwamandla kagesi we-chip kuthintwa kanjani imvelo kanye nezinga lokushisa lento. Umehluko phakathi kwezinzwa ze-thermopile ngayinye usezisetshenziswa kanye nezinqubo zokukhiqiza. Ngaphansi kwezimo ezifanayo zangaphandle, ukuphuma okuphelele kwezinzwa akufani ngokuphelele, kodwa kungabhekwa njengobudlelwano obuningi obuqhubekayo phakathi komunye nomunye.

4.2 Ithonya Lomkhakha Wokubuka (FOV)

Njengoba inzwa ye-thermopile itholakala ngaphakathi kwe-chip, kuzoba newindi elisele ku-chip, futhi isihlungi se-infrared sisetshenziswa njengefasitela elidlulisa ukukhanya ngokubambisana nalo. Inkambu yokubuka yenzwa icishe ilingane ne-engeli eyakhiwe ukuphambana kwemigqa exhuma umzimba we-thermopile ku-chip cross-section kanye nezinhlangothi zombili zewindi elidlulisa ukukhanya. Kuzinzwa ze-infrared thermopile, izinto ezingaphakathi kwenkundla yokubuka i-chip ezinomehluko wezinga lokushisa ukusuka kumzimba wenzwa zizothinta okukhiphayo kokugcina. Ngokuvamile, ekusetshenzisweni kwamathemometha e-infrared, inzwa ifakwa kanye nomkhono wensimbi, futhi amalensi noma izinkomishi ezigxilisa ukukhanya zisetshenziswa ngaphakathi ukuze kuguqule ukukhanya kwe-infrared ku-sensor. Umsebenzi we-sleeve yensimbi ukuhlinzeka ngezinga lokushisa elizinzile lemvelo lenzwa futhi usebenzisane nomklamo we-optical ukwenza i-thermometer ibe nenkambu ethile yokubuka. Kumadivayisi angagqoki anesikhala esanele, kunconywa ukuthi uphansi phansi nezinhlangothi zenzwa ngesikhathi senqubo yokuklama bese wengeza inkomishi yokukhanya yensimbi ukuze kwandiswe umthamo wokushisa wenzwa, unciphise indawo yokubuka, futhi welule izinga lokushisa. ibanga lokulinganisa. Uma kuyidivayisi egqokekayo enesikhala, inzwa ingahlelwa ngo-2 - 3mm kude nekheseji yangaphandle ngokuya ngefomu lomkhiqizo othile. Lapho inkambu yokubuka yanelisekile, ukuvuleka kungaklanywa ngendlela yesitsha. Kufanele kuqashelwe ukuthi amalensi okukhanya abonakalayo ngokuvamile awadlulisi ukukhanya okukude kwe-infrared. Inzwa ngokwayo ivaliwe. Uma idizayini evalekile iyonke idingeka, ingavalwa ngegwebu noma ngokusebenzisa izihlungi ze-silicon ezithumela nge-infrared (amalensi enziwe ngento efanayo nalawo akwinzwa, futhi lawo ayisikwele anezindleko eziphansi zokuthenga). Uma kudingekile ukuguqula inkambu yokubuka kwesakhiwo sokulinganisa izinga lokushisa kanye nemikhono yensimbi ayivunyelwe esakhiweni, amazinga okushisa ezinto ezingenakulinganiswa ngaphakathi kwendawo yokubuka kudingeka acatshangelwe. Kwezinye izimo, imiphumela yokukala izinga lokushisa oyifunayo ingatholwa ngesinxephezelo.

4.3 Umthelela Webanga Lokulinganisa Izinga Lokushisa

Njengoba ukushuba kwemisebe ye-infrared ilingana ngokuphambene nebanga ukusuka entweni, ukuze kube nokunemba kwesilinganiso, ngokuvamile, ukusetshenziswa kwama-thermometer asebunzi kuzodinga ukukalwa ngebanga elithile (3 - 5cm). Ikakhulukazi uma izinzwa ze-infrared zisetshenziselwa ukulinganisa izinga lokushisa lomzimba eliseduze, njengoba ibanga ukusuka esikhumbeni liseduze kakhulu, isici sebanga sinomthelela omkhulu ekuphumeni kwenzwa. Ngakho-ke, ukulinganisa okukhethekile nokuhlolwa ngokuvamile kuyadingeka.

4.4 Umthelela Wokuzinza Kwezinga Lokushisa

Njengoba isilinganiso sokushisa esijwayelekile kanye nesilinganiso se-voltage yokuphuma kwenzwa kuqedwa ngezinyathelo, ukuguqulwa ngakunye kuthatha isikhathi eside, futhi inzwa inesikhathi sokuphendula esithile. Ngakho-ke, uma izinga lokushisa lemvelo lingazinzile phakathi nenqubo yokulinganisa, izinga lokushisa elitholiwe kanye ne-voltage yokuphumayo akuvumelanisiwe, okuzoholela ekuhlukeni phakathi komphumela wokulinganisa kanye nenani langempela lokushisa. Ngakho-ke, ukuzinza kokushisa komzimba wenzwa nakho kubaluleke kakhulu. Uma isakhiwo sivumela, kungcono ukusebenzisa izingxenye zensimbi noma eduze kwenzwa ukuze kwandiswe ukuzinza okushisayo.

5. Izeluleko Zokuklama

Ekwakhiweni kohlelo lokusebenza, amaphuzu abalulekile adinga ukuqondwa izinto zokulinganisa (uketshezi, okuqinile, noma umzimba womuntu), ibanga lokulinganisa, kanye nebanga lokushisa lokulinganisa. Ukwenziwa ngcono kwe-algorithm nokuthuthukiswa kufanele kwenziwe ngokuya ngendawo yohlelo lokusebenza ukuze kuthuthukiswe ukunemba kokulinganisa. I-algorithm ye-chip yasekuqaleni iqinisekisa kuphela ukuthi inzwa inalokhu kunemba ngaphansi kwezimo zokulinganisa okushisayo nezimo ze-isothermal (awukho umehluko wokushisa kuphakheji yenzwa). Uma kukhona umehluko wezinga lokushisa kuphakheji yenzwa, ukunemba okulinganiselwe kuzothinteka. Izimo ezingabangela ukuhluka kwezinga lokushisa kuphakheji yenzwa zihlanganisa, isibonelo, kunezingxenye ezishisayo (noma ezibandayo) ngaphansi noma ohlangothini lwenzwa, noma inzwa isondelene kakhulu nento elinganisiwe, futhi into elinganisiwe izoshisa endaweni. inzwa.