MOSFET Jikin Diode Koyawa don Masu farawa: Shiga cikin Duniyar Diodes na Parasitic

A cikin tsarin lantarki, MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistor) sun fito a matsayin abubuwan da ke cikin ko'ina, suna shahara saboda ingancinsu, saurin sauyawa, da iya sarrafawa. Koyaya, MOSFETs suna ɗaukar sifa ta asali, diode jiki, wanda ke gabatar da fa'idodi da ƙalubale masu yuwuwa. Wannan koyawa na abokantaka na mafari yana shiga cikin duniyar MOSFET diodes na jiki, yana bincika tushen su, halaye, da aikace-aikace masu amfani.

Bayyana MOSFET Jikin Diode

MOSFET diode na jiki shine diode na intrinsic parasitic diode da aka kafa ta tsarin ciki na MOSFET. Yana wanzu tsakanin maɓuɓɓugar ruwa da tashoshi na magudanar ruwa, kuma alkiblarsa yawanci akasin magudanar ruwa ta waje ta MOSFET.

Fahimtar Alama da Halaye

Alamar MOSFET diode jiki tayi kama da diode na yau da kullun, tare da kibiya mai nuna alkiblar kwararar yanzu. Diode na jiki yana nuna halaye masu mahimmanci da yawa:

Gaba Yanzu: Diode na jiki na iya gudanar da halin yanzu a gaba, kama da daidaitaccen diode.

Reverse Voltage Breakdown: Diode na jiki yana da jujjuyawar wutar lantarki, wanda ya wuce abin da yake gudanar da shi fiye da kima, yana iya lalata MOSFET.

Juya Lokacin Farfaɗo: Lokacin da diode ɗin jiki ya juya daga gaba zuwa baya, yana ɗaukar lokacin dawowa don dawo da damar toshewa.

Aikace-aikace na MOSFET Jikin Diodes

Freewheeling Diode: A inductive circuits, jiki diode aiki a matsayin freewheeling diode, samar da hanya ga inductor ta halin yanzu ya lalace lokacin da MOSFET kashe.

Juya Kariya na Yanzu: Diode na jiki yana kare MOSFET daga lalacewa saboda juyar da igiyoyin ruwa waɗanda zasu iya tasowa a wasu saitunan kewaye.

Ƙunƙarar Wutar Lantarki: A wasu aikace-aikace, ana iya amfani da diode na jiki don matsar wutar lantarki, iyakance igiyoyin wutar lantarki da kare abubuwan da ke da mahimmanci.

Misalai Masu Aiki

Ikon Motar DC: A cikin da'irori masu sarrafa motar DC, diode ɗin jiki yana kare MOSFET daga lalacewa ta hanyar inductive baya EMF (ƙarfin lantarki) lokacin da MOSFET ke kashewa.

Wuraren Samar da Wutar Lantarki: A cikin da'irar samar da wutar lantarki, diode na jiki zai iya zama diode mai motsa jiki, yana hana haɓakar ƙarfin lantarki mai yawa lokacin da MOSFET ke kashewa.

Snubber Circuits: Snubber circuits, sau da yawa amfani da diode jiki, ana amfani da su don tarwatsa makamashi da dampen ƙarfin lantarki spikes a lokacin MOSFET sauyawa, kare MOSFET da inganta kewaye da kwanciyar hankali.

Kammalawa

MOSFET diodes na jiki, kodayake sau da yawa ba a kula da su, suna taka muhimmiyar rawa a cikin da'irori daban-daban na lantarki. Fahimtar tushen su, halayensu, da aikace-aikacen su yana ƙarfafa injiniyoyi da ƙwararrun injiniyoyi don tsara hanyoyin da'irori masu ƙarfi da aminci. Ta hanyar yin la'akari da abubuwan da ke tattare da diodes na jiki da kuma yin amfani da dabarun ƙirar da'irar da suka dace, za a iya amfani da cikakken damar MOSFET yayin tabbatar da dorewa da kwanciyar hankali na tsarin lantarki.