labarai

Lokacin da ya zo ga inductor, yawancin masu zanen kaya suna jin tsoro saboda ba su san yadda ake amfani da su bainductor. Sau da yawa, kamar cat na Schrodinger: kawai lokacin da ka bude akwatin, za ka iya sanin ko cat ya mutu ko a'a. Sai kawai lokacin da aka sayar da inductor kuma aka yi amfani da shi a cikin da'irar za mu iya sanin ko an yi amfani da shi daidai ko a'a.

Me yasa inductor ke da wahala haka? Domin inductance ya ƙunshi filin lantarki, kuma ka'idar da ta dace ta filin lantarki da canji tsakanin filayen maganadisu da lantarki galibi sun fi wahalar fahimta. Ba za mu tattauna ka'idar inductance ba, dokar Lenz, dokar hannun dama, da dai sauransu. A gaskiya ma, game da inductor, abin da ya kamata mu kula shi ne har yanzu ainihin sigogi na inductor: darajar inductance, rated halin yanzu, resonant mita, ingancin factor. (Q darajar).

Da yake magana game da ƙimar inductance, yana da sauƙi ga kowa da kowa ya fahimci cewa abu na farko da muke kula da shi shine "darajar inductance". Makullin shine fahimtar abin da ƙimar inductance ke wakilta. Menene darajar inductance ke wakilta? Ƙimar inductance tana wakiltar cewa mafi girman ƙimar, ƙarin ƙarfin da inductance zai iya adanawa.

Sa'an nan kuma muna bukatar mu yi la'akari da rawar da babba ko ƙarami darajar inductance da yawa ko žasa makamashi da yake adanawa. Lokacin da darajar inductance ya kamata ya zama babba, kuma lokacin da ƙimar inductance ya kamata ya zama ƙarami.

Har ila yau, bayan fahimtar ma'anar darajar inductance da kuma haɗuwa tare da ka'idar dabarar inductance, za mu iya fahimtar abin da ya shafi darajar inductance a cikin masana'antar inductor da yadda za a ƙara ko rage shi.

The rated current shima mai sauqi ne, kamar juriya, domin an jona inductor a jere a cikin da’irar, babu makawa zai gudana a halin yanzu. Ƙimar halin yanzu da aka yarda ita ce ƙimar halin yanzu.

Mitar resonant ba ta da sauƙin fahimta. Inductor da aka yi amfani da shi a aikace ba dole ba ne ya zama abin da ya dace. Zai sami daidai ƙarfin ƙarfin, juriya daidai da sauran sigogi.

Resonant mita yana nufin cewa ƙasa da wannan mita, halayen jiki na inductor har yanzu suna aiki kamar inductor, kuma sama da wannan mita, ba ya zama kamar inductor.

Ma'anar ingancin (ƙimar Q) ta ma fi ruɗani. A haƙiƙa, ƙimar ingancin tana nufin rabon makamashin da inductor ya adana zuwa asarar makamashi da inductor ya haifar a cikin zagayowar sigina a wani mitar sigina.

Ya kamata a lura a nan cewa ana samun ma'aunin inganci a wani mitar. Don haka idan muka ce ƙimar Q na inductor tana da girma, a zahiri yana nufin ya fi darajar Q na sauran inductor a wani mitar mitar ko wasu mitoci.

Fahimtar waɗannan ra'ayoyin sannan ku kawo su a aikace.

Inductor gabaɗaya an kasu kashi uku cikin aikace-aikacen: inductor wutar lantarki, inductor mai girma da kuma inductor na yau da kullun.

Da farko, bari muyi magana akaiwutar lantarki.
Ana amfani da inductor a cikin wutar lantarki. Daga cikin masu samar da wutar lantarki, abu mafi mahimmanci don kula da shi shine ƙimar inductance da ƙima na yanzu. Mitar resonance da ingancin ingancin yawanci ba sa damuwa sosai.

Me yasa? Dominikon inductorsana amfani da su sau da yawa a cikin ƙananan mita da kuma babban halin yanzu. Ka tuna cewa menene mitar sauyawa na tsarin wutar lantarki a cikin da'irar haɓakawa ko da'irar buck? Shin 'yan ɗari kaɗan ne kawai K, kuma mitar sauyawa cikin sauri 'yan kaɗan ne kawai M. Gabaɗaya magana, wannan ƙimar ta yi ƙasa sosai fiye da mitar mai kunna wutar lantarki. Don haka ba ma buƙatar kula da mitar resonant.

Hakazalika, a cikin da'irar wutar lantarki, fitarwa ta ƙarshe ita ce halin yanzu na DC, kuma ɓangaren AC yana da ƙima kaɗan.

Misali, don fitar da wutar lantarki na 1W BUCK, bangaren DC ya kai 85%, 0.85W, sannan bangaren AC ya kai 15%, 0.15W. A ce ingancin factor Q na inductor da aka yi amfani da shi ya kasance 10, domin bisa ga ma'anar ma'anar ingancin inductor, rabon makamashin da inductor ya adana da makamashin da inductor ke cinyewa. Inductance yana buƙatar adana makamashi, amma ɓangaren DC ba zai iya aiki ba. Bangaren AC ne kawai zai iya aiki. Sannan asarar AC da wannan inductor ya haifar shine kawai 0.015W, wanda ya kai kashi 1.5% na jimlar wutar lantarki. Saboda ƙimar Q na inductor ta fi girma fiye da 10, yawanci ba mu damu da wannan alamar ba.

Bari muyi magana akaiinductor mai girma.
Ana amfani da inductor mai ƙarfi a cikin da'irori masu girma. A cikin da'irori masu girma, na yanzu yawanci ƙanana ne, amma mitar da ake buƙata yana da girma sosai. Sabili da haka, mahimman alamun inductor sun zama mitar resonance da ingancin inganci.

Mitar resonant da ma'aunin inganci suna da alaƙa mai ƙarfi da mitar, kuma sau da yawa akwai mitar halayen mitar daidai da su.

Dole ne a fahimci wannan adadi. Ya kamata ku sani cewa mafi ƙanƙanci a cikin zanen impedance na halayen mitar rawa shine ma'anar mitar rawa. Za'a sami ma'auni masu inganci masu dacewa da mitoci daban-daban a cikin mitar siffa mai ƙima na ingancin factor. Duba ko zai iya biyan bukatun aikace-aikacen ku.

Ga inductor na yau da kullun, yakamata mu kalli yanayin aikace-aikacen daban-daban, ko ana amfani da su a cikin da'irar tace wutar lantarki ko a cikin siginar sigina, nawa sigina, nawa na yanzu, da sauransu. Don yanayi daban-daban, ya kamata mu kula da halayensu daban-daban.

Idan kuna sha'awar, da fatan za a ji daɗin tuntuɓarMindadon ƙarin bayani.