Cov cuab yeej siv los kho cov qib voltage nkag mus rau cov khoom siv cua sov feem ntau yog siv los ntawm xov tooj cua amateurs los tiv thaiv kev puas tsuaj ntxov ntxov ntawm lub taub hau thiab txhim kho cov khoom zoo. Cov hluav taws xob hluav taws xob uas siv hluav taws xob ntau tshaj plaws muaj ob-positron hu rau cov keyboards thiab cov khoom siv trinistor mounted hauv ib qho chaw muag khoom. Cov no thiab lwm yam khoom siv muab lub peev xwm los xaiv qhov xav tau qib voltage. Niaj hnub no siv cov khoom siv hauv tsev thiab chaw tsim khoom.
Yooj yim zog regulator rau soldering hlau
Yog tias koj xav tau 40 W los ntawm 100 W soldering hlau, koj tuaj yeem siv lub voj voog ntawm triac VT 138-600. Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog txiav cov sinusoid. Kev txiav tawm theem thiab cua sov tuaj yeem hloov kho siv cov resistor R1. Lub teeb neon ua qhov taw qhia. Nws tsis yog tsim nyog los teeb tsa. Lub triac BT 138-600 yog ntsia rau ntawm lub tshuab hluav taws xob.
Cas
Txhua lub tswv yim yuav tsum muab tsonyob rau hauv ib tug kaw dielectric vaj tse. Lub siab xav ua cov cuab yeej me me yuav tsum tsis txhob cuam tshuam rau kev nyab xeeb ntawm nws siv. Nco ntsoov tias lub cuab yeej siv hluav taws xob los ntawm qhov hluav taws xob 220V.
Trigistor zog regulator rau soldering hlau
Ua piv txwv, xav txog ib lub cuab yeej tsim los rau kev thauj khoom los ntawm ob peb watts mus rau ntau pua. Qhov ntau ntawm kev tswj hwm lub zog ntawm cov khoom siv no txawv ntawm 50% txog 97%. Cov cuab yeej siv lub trinistor KU103V nrog lub tuav tam sim no tsis pub ntau tshaj ib milliamp.
Qhov tsis zoo hluav taws xob ib nrab nthwv dej dhau los ntawm VD1 diode, muab txog ib nrab ntawm tag nrho lub zog ntawm cov hlau soldering. Nws tuaj yeem hloov kho los ntawm trinistor VS1 thaum txhua qhov zoo ib nrab-lub voj voog. Cov cuab yeej tau qhib rau hauv kev sib piv rau lub diode VD1. Lub trinistor yog tswj raws li lub hauv paus ntsiab lus ntawm pulse-theem. Lub tshuab hluav taws xob tsim cov pulses uas tau pub rau cov tswj hluav taws xob, suav nrog lub voj voog R5R6C1, uas teev lub sijhawm, thiab lub unijunction transistor.
Txoj haujlwm ntawm tus kov ntawm tus resistor R5 txiav txim siab lub sijhawm los ntawm qhov zoo ib nrab-lub voj voog. Lub hwj chim regulator Circuit Court yuav tsum tau kub stability thiab txhim kho suab nrov tiv thaiv. Txhawm rau ua qhov no, koj tuaj yeem thim qhov kev hloov pauv nrog tus resistor R1.
Chain R2R3R4VT3
Lub tshuab hluav taws xob yog siv los ntawm pulses txog li 7V thiab 10 ms ntev tsim los ntawm R2R3R4VT3 circuit. Kev hloov pauv transistor VT3 yog qhov ruaj khov. Nws puv nyob rau hauv thim rov qab. Lub zog nws dissipatesCircuit Court ntawm resistors R2-R4 yuav raug txo.
Lub zog tswj hluav taws xob muaj xws li lub capacitor C1KM5, resistors - MLT thiab R5 - SP-0, 4. Txhua lub transistor siv tau.
Board thiab vaj tsev rau cov cuab yeej
Rau qhov sib dhos ntawm cov cuab yeej no, lub rooj tsav xwm fiberglass nrog txoj kab uas hla ntawm 36 hli thiab lub thickness ntawm 1 hli yog haum. Koj tuaj yeem siv txhua yam khoom siv rau rooj plaub, xws li cov thawv yas lossis rooj plaub ua los ntawm cov khoom siv nrog cov rwb thaiv tsev zoo. Koj yuav xav tau lub hauv paus rau cov ntsiab lus ntsaws. Ua li no, ob lub txiv ntseej M 2, 5 tuaj yeem ua rau cov ntawv ci kom cov pins nias lub rooj tsavxwm rau rooj plaub thaum sib dhos.
Qhov tsis zoo ntawm SCRs KU202
Yog tias lub zog ntawm cov hlau soldering me me, kev tswj hwm tsuas yog ua tau nyob rau hauv ib cheeb tsam nqaim ib nrab. Nyob rau hauv ib qhov chaw tuav voltage ntawm SCR tsawg kawg yog me ntsis qis dua lub load tam sim no. Kev ruaj ntseg kub tsis tuaj yeem ua tiav thaum siv lub tshuab hluav taws xob zoo li no.
Boost Regulator
Feem ntau ntawm cov khoom siv rau qhov kub thiab txias ua haujlwm tsuas yog txo lub zog. Koj tuaj yeem kho qhov voltage ntawm 50-100% lossis los ntawm 0-100%. Lub hwj chim ntawm cov hlau nplaum yuav tsis txaus yog tias lub hwj chim qis dua 220 V lossis, piv txwv li, yog tias koj xav tau tshem lub rooj tsav tsheb loj loj.
Kev khiav hauj lwm voltage yog smoothed los ntawm electrolytic capacitor, nce 1.41 zaug thiab pub cov hlau soldering. Lub zog tas li kho los ntawm lub capacitor yuav ncav cuag 310 V nrog rau 220 V. Qhov zoo tshaj plaws cua sov tuaj yeemtau txais txawm tias ntawm 170 V.
Lub zog muaj zog hlau tsis tas yuav muaj kev tswj hwm kev txhawb nqa.
Nyob rau hauv Circuit Court
Txhawm rau sib sau ua ke lub zog yooj yim rau lub tshuab hluav taws xob nrog koj tus kheej txhais tes, koj tuaj yeem siv txoj kev txhim kho nto ze ntawm qhov hluav taws xob. Qhov no yuav tsum muaj cov khoom me me. Lub zog ntawm ib tus resistor yuav tsum yog tsawg kawg yog 2W, thiab tus so - 0.125W.
Kev piav qhia ntawm lub zog txhawb zog tswj Circuit Court
Lub tswv yim rectifier yog tsim los ntawm electrolytic capacitor C1 nrog tus choj VD1. Nws cov kev khiav hauj lwm voltage yuav tsum tsis txhob tsawg tshaj li 400 V. Qhov tso zis ib feem ntawm lub regulator yog nyob rau ntawm lub IRF840 teb-ffect transistor. Nrog rau cov cuab yeej no, koj tuaj yeem siv cov hlau txuas mus txog 65 W yam tsis muaj lub tshuab cua sov. Tej zaum lawv yuav kub dua li qhov xav tau qhov kub thiab txias txawm tias lub zog txo.
Kev tswj hwm ntawm qhov tseem ceeb ntawm transistor nyob rau ntawm DD1 nti yog tsim los ntawm lub tshuab hluav taws xob PWM, qhov zaus uas tau teeb tsa los ntawm lub capacitor C2. Lub parametric stabilizer yog mounted ntawm C3, R5 thiab VD4 li. Nws txhawb nqa DD1 nti.
Tiv thaiv cov zis transistor los ntawm tus kheej induction, VD5 diode raug teeb tsa. Nws tuaj yeem raug tshem tawm yog tias lub tshuab hluav taws xob tswj hluav taws xob yuav tsis siv nrog lwm cov khoom siv hluav taws xob.
Muaj peev xwm hloov qhov chaw hauv cov tswj hwm
Chip DD1 tuaj yeem hloov tau los ntawm K561LA7. Tus choj rectifier yog ua los ntawm diodes tsim rau qhov tsawg kawg nkaus tam sim no ntawm 2A. IRF740 tuaj yeem siv uatso zis transistor. Lub Circuit Court tsis xav tau ib qho overlay yog tias tag nrho cov khoom nyob rau hauv kev txiav txim zoo thiab tsis muaj kev ua yuam kev thaum nws los ua ke.
Lwm qhov kev xaiv qhov hluav taws xob cuam tshuam tau
Yooj yim circuits ntawm lub hwj chim regulators rau ib tug soldering hlau yog sib sau ua ke, ua hauj lwm ntawm triacs KU208G. Tag nrho lawv cov cunning yog nyob rau hauv ib tug capacitor thiab ib lub teeb neon, uas, los ntawm kev hloov nws brightness, tuaj yeem ua qhov taw qhia ntawm lub zog. Txoj cai muaj peev xwm yog los ntawm 0% txog 100%.
Thaum tsis muaj triac lossis lub teeb pom kev zoo, KU202N thyristor tuaj yeem siv tau. Qhov no yog ib qho khoom siv uas muaj ntau yam analogues. Nrog nws txoj kev siv, koj tuaj yeem sib sau ua ke ib lub voj voog ua haujlwm hauv thaj tsam ntawm 50% txog 99% lub zog.
Ib lub nplhaib ferrite los ntawm lub khoos phis tawj cable tuaj yeem siv los ua lub voj kom tua tau qhov cuam tshuam los ntawm kev hloov lub triac lossis thyristor.
Xov taw qhia
Lub ntsuas ntsuas tuaj yeem muab tso rau hauv lub zog hluav taws xob hluav taws xob rau kev siv yooj yim dua. Nws yog qhov yooj yim heev los ua qhov no. Cov khoom siv suab qub uas tsis siv tau tuaj yeem pab koj nrhiav cov khoom no. Cov cuab yeej siv tau yooj yim nrhiav tau hauv khw hauv zos hauv txhua lub nroog. Zoo, yog ib tug ntawm no pw nyob ib ncig ntawm tsev.
Piv txwv li, xav txog qhov muaj peev xwm ntawm kev sib koom ua ke ntawm M68501 qhov taw qhia nrog lub xub thiab cov cim digital rau hauv lub hwj chim tswj hwm rau cov hlau soldering, uas tau nruab rau hauv cov qub Soviet daim kab xev kaw. Lub tuning feature yog xaiv ntawm cov resistor R4. Yeej yuav tsum khaws cov cuab yeej R3ntxiv yog siv lwm qhov taw qhia. Nws yog ib qho tsim nyog kom muaj qhov sib npaug ntawm cov resistors thaum txo lub zog ntawm cov hlau soldering. Qhov tseeb yog qhov xub ntawm qhov taw qhia tuaj yeem pom qhov txo qis ntawm lub zog los ntawm 10-20% thaum qhov kev siv tiag tiag ntawm cov hlau soldering yog 50%, uas yog, ib nrab li ntau.
Zoo kawg
Lub hwj chim tswj hwm rau lub tshuab hluav taws xob tuaj yeem sib sau ua ke siv ntau cov lus qhia thiab cov khoom nrog piv txwv ntawm ntau yam ua tau zoo. Qhov zoo ntawm cov soldering nyob ntawm qhov zoo ntawm cov solders, fluxes thiab qhov kub ntawm cov cua sov. Cov khoom siv nyuaj rau kev ruaj khov lossis kev sib koom ua ke ntawm diodes tuaj yeem siv thaum sib sau cov khoom tsim nyog los tswj cov khoom siv hluav taws xob.
Cov khoom siv no tau siv dav los txo qis thiab nce lub zog nkag mus rau cov cua sov ntawm cov hlau soldering nyob rau hauv thaj tsam ntawm 0% txog 141%. Nws yooj yim heev. Muaj lub sijhawm tiag tiag los ua haujlwm ntawm qhov hluav taws xob qis dua 220 V. Cov khoom siv zoo tshaj plaws uas muaj cov tswj hwm tshwj xeeb muaj nyob rau hauv kev ua lag luam niaj hnub. Cov khoom siv hauv tsev ua haujlwm tsuas yog txo lub zog. Cov kauj ruam-up regulator yuav tsum tau los ua ke los ntawm koj tus kheej.
