iindaba

Kuyaziwa ukuba iimveliso ze-elektroniki zihlala zidibana neenguqu zamandla ombane ezingalindelekanga kunye nokunyuka okusebenzayo, okukhokelela kumonakalo weemveliso zombane.Umonakalo ubangelwa izixhobo ze-semiconductor kwiimveliso ze-elektroniki (kubandakanywa i-diodes, i-transistors, i-SCR kunye neesekethe ezidibeneyo) ezitshiswayo okanye zaphulwa.

I-1, enye yeendlela kukwenza umatshini wonke, kunye nenkqubo yokumisa, umatshini wonke kunye nenkqubo (yoluntu) kunye nomhlaba uya kwahlulwa, umatshini wonke kunye nenkqubo yenkqubo engaphantsi nganye iya kuba necala likawonkewonke elizimeleyo, phakathi i-subsystems ukudlulisa idatha okanye umqondiso, kufuneka emhlabeni njengomgangatho wesalathiso, ucingo lomhlaba (umphezulu), kufuneka lube lukhulu lwangoku, olufana namakhulu amaninzi e-ampere.

2. Indlela yesibini yokukhusela kukwamkela i-voltage transients kunye nezixhobo zokukhusela zokunyuka kwiindawo eziphambili zomatshini kunye nenkqubo (ezifana nokuboniswa kwekhompyutheni, njl.njl.), ukwenzela ukuba i-voltage transients kunye ne-surge ikwazi ukugqithiswa kumhlaba we-subsystem kwaye. umhlaba ngezixhobo zokukhusela, ukuze amandla ombane adlulayo kunye ne-amplitude yokunyuka engena kuwo wonke umatshini kunye nenkqubo inokuncitshiswa kakhulu.

3. Indlela yesithathu yokukhusela kukusebenzisa ukudibanisa kwee-voltage ezininzi kunye nezixhobo zokukhusela i-surge to make a multistage protection circuit kumatshini abalulekileyo kunye nexabiso eliphantsi kunye neenkqubo.

Umkhuseli we-Surge ubonelela ngendlela elula, enoqoqosho kwaye ethembekileyo yokukhusela ukukhuselwa kwamandla ombane wezixhobo zombane.Ngokusebenzisa isikhuseli sotyando (i-MOV), amandla ombane anokuhanjiswa ngokukhawuleza emhlabeni xa kukho ukubetha kombane kunye nokusebenza ngokugqithisileyo, ukuze kukhuselwe isixhobo emonakalweni.

(4) ukomeleza isiphumo sokhuselo lwezixhobo ze-elektroniki, kunikezelo lwamandla kunye nomthwalo phakathi koluhlu lwe-super solation transformer (ekwaziwa ngokuba yindlela yokwahlula), ukwenzela ukwahlula uphazamiseko oluphezulu lwe-frequency peak, kodwa lunokwenza isibini uqhagamshelwano lwe-equipotential lula ukwenza.

Indlela yokwahlula isebenzisa i-transformer yodwa kunye ne-shielding layer.Ngenxa yokuba ukuphazamiseka kwemowudi eqhelekileyo luhlobo lokuphazamiseka komhlaba, lusasazwa ngokukodwa ngokudibanisa amandla phakathi kwe-transformer windings.Ukuba umaleko okhuselayo ufakwe phakathi kweprayimari kunye neyesibini, kunye ne-coupling capacitance. Umaleko okhuselayo usekelwe kakuhle, i-voltage ephazamisayo inokuthintelwa kumgangatho okhuselayo, ngaloo ndlela inciphisa umbane ophazamisayo kwimveliso.

Ngokwethiyori, i-transformer ene-shielding layer ingenza ukuthotywa malunga ne-60dB. Kodwa umphumo wokuzihlukanisa ulungile okanye umbi, kaninzi kuxhomekeke kwi-teknoloji yokukhusela. nganye yongeza i-shielding layer.Ngokuqhelekileyo, i-primary shielding ixhunyiwe kwi-second shielding ngokusebenzisa i-capacitor, edityaniswe ngoko kumhlaba wesibini. , kunye noluhlu olukhuselayo lomgca wesibini lunokudibaniswa nomhlaba wecala.Kwaye indawo enqamlezileyo yesikhokelo somhlaba kufuneka nayo ibe nkulu.I-transformer yodwa kunye ne-shielding layer yindlela efanelekileyo, kodwa umthamo inkulu.

Le ndlela ngenxa yokuba umsebenzi transformer kakhulu eyodwa, umthamo isalamane, ubunzima, ufakelo ayilunganga kakhulu, phakathi kunye nencopho ephantsi frequency kunye nefuthe lokhuselo ukuqhambuka akulunganga, ngoko ke imarike kulinganiselwe, abavelisi akukho kakhulu.Ngoko ke akunjalo. idla ngokusetyenziswa ngezihlandlo ezikhethekileyo.

(5) indlela yokufunxa

Indlela yokufunxa ubukhulu becala isebenzisa isixhobo sokufunxa amaza ukufunxa amandla ombane ophazamiseko encochoyi yokunyuka. Izixhobo zokufunxa zonke zineempawu ezifanayo, oko kukuthi, zibonisa i-impedance ephezulu ngezantsi kombane we-threshold, kwaye nje ukuba umbane we-threshold ugqithisiwe, i-impedance yehla kabukhali, ke ngoko. banempembelelo ethile yokuthintela kwi-voltage ephezulu.

Olu hlobo lwesixhobo sokufunxa ikakhulu lubandakanya i-varistor, ityhubhu yokukhupha igesi, ityhubhu ye-TVS, ityhubhu yokukhupha eqinileyo, njl. isantya sokuphendula setyhubhu yeamplifier yegesi siyacotha.