Regulator Teguci 7805

Duk mata tsohon karamin ba zan iya bayar aiki mai kyau saboda wasu nasarorin da suka faru a cikin siffo. Don samun aiki mai kyau da masu gaskiya, an yi amfani da mata tsohon karamin. Amma cikin alama da ake amfani don tsohon karamin sunan mata tsohon karamin IC. A nan za a iya hadada kan IC 7805.

IC mata tsohon karamin 7805 ya shafi daya daga wurare 78xx na mata tsohon karamin IC. Yana cewa wanda yake da tsohon aiki mai kawo. XX a cikin 78xx yana nufin daraja ta tsohon aiki da yake bayar. Don IC 7805, yana bayar +5V DC tsohon aiki. Wannan IC tsohon yana da muhimmanci ga faduwar karamin. Karamin muka a matsayin ma'ana zuwa wannan IC tsohon yana iya zuwa 35V, kuma wannan IC zai iya bayar tsohon 5V don babbu da karamin muka da ta kasance ko kamar 35V wanda shi ne tsarin adadin karamin.

PIN 1-MAKARANTA
Aikinsa waɗannan PIN shine maimaita karamin muka. Yana da kyau a zama 7V zuwa 35V. An yi amfani da karamin muka da ba a tsohon ba a matsayin makaranta. Don 7.2V makaranta, PIN yana samu faɗin aiki mafi yawa.

PIN 2-TSAYI
An haɗa tsayi a matsayin waɗannan PIN. Don makaranta da aiki, waɗannan PIN yana da tsayi (0V).

PIN 3-AIKI
Waɗannan PIN yana amfani don tsohon aiki. Zai

Tsohon Karamin a Cikin IC 7805

A cikin IC 7805 mata tsohon karamin, akwai abubuwa da suka faru a matsayin jiki. Dabamai daga darajin makaranta da aiki yana faru a matsayin jiki. Saboda haka, idan dabamai daga darajin makaranta da aiki yana da take, zai faru jiki mafi yawa. Ba a tsohon faduwar karamin, wannan jiki mafi yawa zai ba da sakewa.

An kiran, dabamai mafi yawan lafiya da ke da dabamai daga darajin makaranta da aiki don tsohon aiki a matsayin dropout voltage. Yana da kyau a tsohon darajin makaranta 2 zuwa 3V mafi yawa da aiki, ko kuma a tsohon faduwar karamin da zai iya faru jiki mafi yawa. Yana da kyau a mari faduwar karamin daidai. Tsarin a nan za a ba wani misal.

Idan haka, za a iya tattara nahawu da jiki da darajin makaranta a cikin tsohon aiki wannan IC da misal bi na biyu.

Za a iya duba aikinsa da darajin makaranta 16V da aiki karamin 0.5A.
Saboda haka, jiki da aka faru
Saboda haka, 5.5W jiki da aka faru kuma aiki mai amfani da shi
Yana nufin cewa abubuwan da aka faru a matsayin jiki suka duba aiki mai amfani da shi.
Dukkan, za a iya duba misal da darajin makaranta 9V.
A cikin wannan misal, jiki da aka faru
Daga cikin wannan, za a iya cewa idan darajin makaranta yana da take, wannan IC tsohon zai zama da ci gaba. Idan kana son samun karfin, an samu aiki mai kyau da MCQ a digitalline.

Tsarin Rukuni na Tsohon Aiki 7805

Tsarin rukuni na tsohon aiki 7805 an koyar da shi a rubutu:

A cikin tsarin rukuni, akwai amplifier da ake amfani don tsohon aiki, transistor da ake amfani don tsohon aiki, generator da ake amfani don karamin, darajin makaranta, generator da ake amfani don karamin, aiki da ake faru, SOA protection da thermal protection.

A nan, operating amplifier an amfani da shi a matsayin error amplifier. Diode Zener an amfani da shi don bayar darajin makaranta. An koyar da shi a cikin rubutu.

Transistor an amfani da shi a matsayin series pass element. An amfani da shi don faru jiki a matsayin karamin. An tsohon aiki tare da kontrola karamin a matsayin makaranta da aiki. SOA shine Safe Operating Area. Yana nufin tsari na darajin makaranta da karamin inda aikin za a yi aiki ba tare da sakewa. A nan, an amfani da bipolar transistor tare da resistor da auxiliary transistor. An tsohon faduwar karamin don thermal protection idan akwai karamin mafi yawa.

Tsarin Aiki Mai Tsohon Karamin

Mata tsohon karamin 7805 da abubuwan da suka da suka amfani da su an sa a cikin tsarin kamar yadda ake koyar da shi a rubutu.

Misalai da ake amfani da abubuwan da suka da su a matsayin IC7805 an koyar da su a cikin rubutu.
C1– Wannan shine capacitor da ake amfani don tsohon spikes mafi yawa zuwa tsayi.
C2 da C3– Su shine filter capacitors. C2 an amfani da shi don tsohon takamakon mafi yawa a darajin makaranta da ake bayar a cikin tsarin. C3 an amfani da shi don tsohon takamakon mafi yawa a darajin makaranta da ake bayar daga tsohon aiki a cikin tsarin. Idan abubuwan da suka da suka zai buƙata, tsohon aiki zai buƙata. Amma