uhlobo olutsha lwezixhobo zombane ze-electroplating-high-frequency switching power supply. Idibanisa izibonelelo zokuguda kwe-waveform ye-silicon rectifiers kunye nokulula kokulawulwa kombane we-silicon-controlled rectifiers. Inokusebenza okuphezulu kwangoku (ukuya kwi-90% okanye ngaphezulu) kunye nomthamo omncinci. Sisilungisi esithembisayo. Itekhnoloji yokuvelisa isombulule ingxaki yamandla, kwaye umbane ophezulu wokutshintsha amandla ukusuka kumawaka ama-amps ukuya kumashumi amawaka e-amps angenile kwinqanaba elisebenzayo lokuvelisa.
Ilungisa ngokuthe ngqo kwaye ihluze igridi yamandla e-AC ngesihluzo se-EMI anti-electromagnetic interference line filter, iguqula amandla ombane e-DC abe yi-high-frequency square wave yamashumi okanye amakhulu e-kHz ngesiguquli, ihlukanise kwaye inciphise amandla ombane ngokusebenzisa i-high-frequency. umguquli, kwaye emva koko ngokusebenzisa i-Frequency ephezulu yokucoca imveliso yombane we-DC. Emva kwesampula, ukuthelekisa, ukukhulisa kunye nokulawula, isiphaluka sokuqhuba, umlinganiselo womsebenzi wetyhubhu yamandla kwi-converter ilawulwa ukuze ufumane i-voltage ephumayo ezinzileyo (okanye i-output current).
Umbhobho wohlengahlengiso we-high-frequency switching rectifier usebenza kwisimo sokutshintsha, ilahleko yamandla incinci, ukusebenza kakuhle kunokufikelela kuma-75% ukuya kuma-90%, umthamo umncinci, ubunzima bulula, kwaye ukuchaneka kunye ne-ripple coefficient kungcono. kunesilungisi sesilicon, esinokuba kuluhlu olupheleleyo lwemveliso. Ukufezekisa ukuchaneka okufunwa yimveliso. Inekhono lokuzikhusela kwaye inokuqala kwaye imise ngokungenasizathu phantsi komthwalo. Inokudityaniswa ngokulula nekhompyuter, ezisa uncedo olukhulu kwimveliso ezenzekelayo kwaye isetyenziswa kakhulu kushishino lokutyalwa kwePCB.
Iimbonakalo
Ukusebenzisa umsebenzi wokulawula ixesha, ukuseta kulula kwaye kulula, kwaye ixesha lokusebenza le-polarity elungileyo kunye nengalunganga yangoku inokumiselwa ngokungqongqo ngokweemfuno zenkqubo yokucwenga.
Ineendawo ezintathu zokusebenza zokuguquguquka komjikelo oluzenzekelayo, okulungileyo kunye nokungalunganga, kunye nokubuyisela umva, kwaye inokutshintsha ngokuzenzekelayo i-polarity yemveliso yangoku.
Ubungangamsha be-periodic commutation pulse plating
I-1 i-Reverse pulse yangoku iphucula ukusabalalisa ubukhulu bengubo, ubukhulu bengubo bufanayo, kwaye ukulinganisa kulungile.
I-2 Ukutshatyalaliswa kwe-anode ye-pulse ebuyela umva kwenza ukuba ukuxinwa kwee-ion zetsimbi kumphezulu we-cathode kuphakame ngokukhawuleza, okwenza kube lula ukusetyenziswa kwe-high pulse yangoku yoxinaniso kumjikelo olandelayo we-cathode, kunye nokuxinana kwe-pulse yangoku kwenza isantya sokwakheka. i-crystal nucleus ngokukhawuleza kunezinga lokukhula kwe-crystal, ngoko ke I-coating ixinene kwaye ikhanya, kunye ne-porosity ephantsi.
3. I-reverse pulse anode stripping kunciphisa kakhulu ukubambelela kokungcola kwezinto eziphilayo (kubandakanya i-brightener) kwi-coating, ngoko ke i-coating inobunyulu obuphezulu kunye nokuchasana okunamandla kwi-discoloration, eyona nto ivelele kwi-cyanide yesilivere.
4. I-reverse pulse yangoku i-oxidizes i-hydrogen equlethwe kwi-coating, enokuphelisa i-hydrogen embrittlement (efana ne-pulse e-reverse inokususa i-hydrogen edibeneyo ngexesha le-electrodeposition ye-palladium) okanye ukunciphisa uxinzelelo lwangaphakathi.
5. I-periodic reverse pulse current igcina ubuso bendawo edibeneyo kwindawo esebenzayo ngamaxesha onke, ukwenzela ukuba i-plating layer ene-bonding force efanelekileyo inokufumaneka.
6. I-Reverse pulse iluncedo ekunciphiseni ubukhulu bokwenene boluhlu lwe-diffusion kunye nokuphucula ukusebenza kakuhle kwe-cathode yangoku. Ke ngoko, iiparamitha ezifanelekileyo ze-pulse ziya kukhawulezisa ngakumbi izinga lokubekwa kwengubo.
7 Kwi-plating system engavumeli okanye inani elincinci lezongezo, i-double pulse plating inokufumana i-coating, egudileyo, kunye ne-coating egudileyo.
Ngenxa yoko, izalathisi zokusebenza zokugquma ezifana nokumelana nobushushu, ukumelana nokunxiba, ukuwelda, ukuqina, ukumelana nokugqwala, ukuguquguquka, ukuchasana nokuguquka kombala, kunye nokuguda kuye kwanda kakhulu, kwaye kunokonga kakhulu iintsimbi ezinqabileyo nezixabisekileyo (malunga ne-20% -50). %) kwaye ugcine izongezo (ezifana neSilver eBright cyanide plating imalunga ne-50%-80%)