Esi etinye a voltaji regulator 12 volts

Dị ka a kọwara na sekit na sekit iyi ike arụmọrụ amplifiers nke ala ike isi mmalite mgbe na-eji ọtụtụ volts (12-15). Ka ụbọchị, ọtụtụ ná agbasa volt voltaji regulator 12 ahazi iji a atọ-ọnụ integrated nkeji. Ha nzube ya bụ iji nweta a dị iche iche mmepụta voltaji na ịdị ukwuu nke eletrik. Isi mmiri - ike na sekit na sekit bụ KR142EN8B anụ ụlọ mmepụta na dị analogues usoro MS78hh na MS79hh ma ọ bụ nanị 78hh na 79hh.

Domestic na mba ọzọ na ụdị nke stabilizers

Russian KR142EN8B integral unit (abbreviated aha KREN8B) na-enye a nkịtị mmepụta voltaji nke iri na abụọ volts.

Dị stabilizers hotara na mbụ usoro nwere ndị na-esonụ e: mbụ ọbụna ọnụ ọgụgụ (78) na-egosi na nzube - mma mmepụta ugbu a, ihe iberibe nọmba (79) - a-adịghị mma mmepụta voltaji. The abụọ ikpeazụ digits (12 ma ọ bụ 05) indicative nke mmepụta ike nke eletrik. Dị ka ihe atụ: 7912 - IC - 12V voltaji regulator na-adịghị mma polarity, 7805 - mgbawa - otu unit, naanị 5 volts na na a mma polarity.

Atọ-ọnụ regulator dị ka aha ya na-egosi, e nwere ihe atọ ndapụta na-enye njikọ mpụga eletriki circuit: input, mmepụta na n'ozuzu. Iji jikọọ a ike isi iyi na ụlọ ( "ala") na-eji a nkịtị mmepụta. The ọsọ ọsọ na-nkịtị ọnụ na-eji-ezitekwara input voltaji na mmepụta anyị ina-arụ ọrụ na ubiere nke "ụzọ ọpụpụ" na "nkịtị".

The voltaji regulator 12 volts ga-arụ ọrụ kwesịrị ke ikpe, ma ọ bụrụ na ndenye ugbu a mgbe karịa ime ibu mmepụta karịa dịkarịa ala 2.5 volts. The uru nke kacha ike input ekwesịghị gafere iri atọ volts. Ọzọkwa, mara na ụba input voltaji enye ike uru, 12b stabilizer amalite ewe iwe dị ọkụ. Ntem, ọ dị mkpa iji gbochie mmebi nke ojiji nke okpomọkụ sink.

Standard ike ọkọnọ na-kpọkọtara si electrolytic capacitor ka 10,000 microfarads, a na-efegharị efegharị akwa rectifier nke diodes na a reverse voltaji nke 50 volts kpọmkwem ugbu a na 3A, fuuz (0,5 A). voltaji regulator onwe ya 12 volts - 7912 ma ọ bụ na 7812 (KREN8B).

Iji kpọkọtara ngwa, n'ihi na otú a igwe na-achọ n'itinye na latrik dị otú ahụ n'ụzọ na ogologo n'etiti arịọnụ ogige bụ ebe kasị ala, na mwepụ nke igwe okpomọkụ - kasị ibu. N'ihi na obi jụrụ, ọ kasị mma na-a ọkọlọtọ ribbed radiators nke zuru ezu n'elu ebe, ma ọ bụ metal efere.

Isi mmalite n'itinye agụnye voltaji regulator 12 volts, na-enye ohere ha na ojiji maka na ike ọkọnọ nke dị iche iche nke na ngwaọrụ na nkanka gbuo ha na ojiji nke TTL ike mgbagha na sekit na sekit, gụnyere ngwaọrụ maka akpakanamde ugbo ala.