Didirisiwa le bueloang molao-motheo oa e rectifier oa potoloho diode borokho

Fapanyetsana motlakase hona joale o sokolohela DC pulsed ka tšebeliso ea lipotoloho khethehileng tsa elektronike - diode marokho. Diode borokho rectifier oa potoloho e arotsoe version tse peli: e mong-mohato le tse tharo-mohato.

Ka kakaretso rectifier elements ke diode. Structurally, ke poleiti tsa ladica i semiconductor le libaka tse peli tse fapaneng conductivity. Tšobotsi e na le litemana tsa unilateral tsa morao-rao ea motlakase, ho itšetlehile ka tataiso ea phallo.

Sebopeho le mosebetsi oa rectifier diode e thehiloeng litšobotsi tsa semiconductor pn phetoho pakeng tsa libaka ka. hanyetsa lona itšetlehile ka polarity tsa gagamalo kantle. Tabeng e 'ngoe, ho ke ke e kholo, ka tse ling tse - hanyenyane.

The le 'ngoe-mohato diode borokho

Ha input - lenaihana sine tsokoang gagamalo ka e mong le e potoloho halofo ea morao-rao e ntse e feta ka para ea diodes le basebetsi ba bang koaloa. Ka lebaka leo, e mong oa potoloho khumo thehoa tsa diode borokho rectifier ripple gagamalo ho ba le maqhubu a makhetlo a mabeli e kholoanyane ho feta ka lesoba la.

Borokho oa potoloho a mararo-mohato

oa potoloho ena sebedisa diode halofo borokho rectifiers. The khumo gagamalo e fumanweng ka pulsations nyenyane.

Tsela ea ho boreleli tsoa ho ripple ka ogee matla?

Boleng ba gagamalo phosollwa decreases le ho eketseha ha pulsation lona. Ho fokotsa e, sebelisa likarolo, ho bokella eneji, le ha fanoa tswa rectifier hleka holim 'qetello ea filing lona.

Ka temperaturdiagramm, e diode borokho rectifier le capacitor amana ka e tšoanang le mojaro oa ho qetela. polokelo le matla a se khethileng ho itšetlehile ka mojaro jwale. Ha o etsa kopo pulse length le capacitor e lefisa. Pakeng tsa linaoa (ha ba ha ba), e fuoa gagamalo mojaro.

Ka lebaka la ho smoothing filtara khumo gagamalo fetoha kholoanyane le atamelang boleng ba phosollwa boleng molumo.

E gagamalo loketseng ka khumo ea filthara ka sa fumanehe ka lebaka la ho tebelwa mosebetsing ea capacitor pakeng tsa linaoa. Ka tloaelo ho, pulsations tsena ke lumeletsoe. Ba ka fokotseha ka eketsa capacitance tsa capacitor ena.

Ha smoothing inductor e sebediswa, ho e amana letotong le mojaro oa ka. The ho kopantswe filtara oa potoloho e kenyeletsa inductors le capacitors.

Kaho ea diode borokho

The bonolo sesebelisoa borokho e entseng ka tsela diodes arohaneng adhesions. indasteri e hlahisa dibopeho monolithic tse nyenyane ka boholo le ka theko e tlaase. Ho phaella moo, ba ile ba ba matched diodes le litšobotsi tse tšoanang, e lumellang ho sebetsa le mocheso e tšoanang. Sena se eketsa ho tšepahala ha oa potoloho diode borokho rectifier.

Ka ba molemo ho ea diode borokho ba thepa ea motheo e le batho ka bomong ke bokhoni ba ho e lokisa, ha e mong oa bona a hloleha. phutheho hape o lokela ho nkeloa sebaka ka ho feletseng. Liphoso tsa ka ho ba ka seoelo, hobane boemo ba leholimo ba hantle matched.

matla rectifiers

Lisebelisoa tse li jang le hona joale o moholo, ka tloaelo ho ba tsamaisoa ka 220 V. disebediswsa Direct ha ba amana, kaha gagamalo hlokehang bakeng lipotoloho le ea elektronike ho tse nyenyane, ya jwale - kamehla. Ebe sebelisa lenaihana adaptara.

Gagamalo theolela ke transformer, e leng e boetse e baka e itšehla thajana galvanic pakeng tsa liketane mathomo le se mahareng iphepe. Sena se fokotsa kotsi ea makala motlakase le sirelelitsoe ke sethusathuto ha e khutšoanyane-oa potoloho oa potoloho ena.

adapters morao-rao sebetsa maemong a mangata ka tsela e bonolo transformerless oa potoloho ntle ho itšehla thajana galvanic, ao ho 'ona le matla a feteletseng e ananelang capacitor ena.

Driving ka diode borokho 12 volts: taeo le kopano

Phepelo matla e na le dimmojule tsa tse peli, moo pele - mohato-fatše transformer, 'me ea bobeli - ka diode borokho bo fetola mofuta o mong oa gagamalo ho e' ngoe.

Kgethile loketse transformer. Le ka sehloohong matsoelintsoeke o na le mohlahlobi e. hanyetsa lona e lokela ho ba moholo ka ho fetisisa. Ke tswelopela multimeter lakatsa lipheletsong tse ka mokgwa wa ho hanyetsa ea ho lekanya. Hape ho na le banyalani ba ba bang le markings entse.

E fuoa ka sehloohong matsoelintsoeke 220 V. Joale mohlahlobi e fetoleloa ka e fapanyetsana gagamalo mokgwa wa go lekanya le mehato e gagamalo ka windings tse ling. Khetha e 'ngoe kapa toloking 10 V. Ho ke ke bohlokwa hore ho gagamalo le lilemo li 12 V, ho tloha filtara capacitive mora e ile ea eketseha ka tse 18%.

transformer e fetola bakeng sa matla a li lakalitseng, joale e ntan'o ba setokong e nkiloeng ke 25%.

4 sothehileng diode ka diode borokho 'me e fella ka propaivayutsya. Ebe oa potoloho e amanang, ka capacitor khumo e amana ho 25 V le 2200 karaoke mf (electrolyte) le netefalitsoeng ka tshebetso.

Transformerless oa potoloho ea volts diode borokho rectifier 24

Ikatisetsa tsenwe ho pharaletseng sebediswa tlase matla a matla phepelo ntle baru.

Matla a phepelo 220 e fuoa ka tsitsisang capacitor C1. The rectifier na le diodes VD1, VD2 le Zener diodes VD3, VD4. Ho felisa ho lelemela jwale ka borokho tlohang matla capacitor letotong le hona joale fokotsa resistor e behiloeng ka ho hanyetsa ea 50-100 ohms. E le hore ho tebelwa mosebetsing ea capacitor ha robehile oa potoloho, e amana ka ho tšoanang le tlhokeng 150-300 kohm resistor.

Oa potoloho khumo e beha smoothing capacitor e capacitance ea 2000 pF.

Ho hloka galvanic le puisano e baka kotsi ea makala motlakase.

kopo

Dikopo tsa diode borokho bophara ka ho fetisisa le tse sa tšoaneng:

• mabone (LED le mabone fluorescent);
• disebediswsa motlakase metering;
• diyuniti phepelo matla a thepa ea elektronike;
• liindasteri matla phepelo, taolo le ditjhajara.

Tsela ea ho khetha diode bakeng sa ho etsa hore diode borokho?

Ka sehloohong kgetho mekgwatiriso ke gagamalo le jwale moo ba diode e sa overheated. Ka ho toba kenyeletso hodima yona oela gagamalo tse ka bang tse 0.6 V, joalokaha ho e na le ho hanyetsa ka hare. The khutlisetsang gagamalo hore diode mamella kantle ho kena mogote le motlakase ho sithabela mokgwa wa, e na le moedi itseng. Ha eba e etselitsoeng 220 V, ho nka setokong seng ka tlase ho 25%. Empa e ke molemo ho nka e se lekaneng ho sireletsa khahlanong le phoso matla-line ho lelemela.

Hona joale e boetse e nkoa ho pokello ea. Haeba ho hlokahala, ho e fana ka radiator ka metsi Cooling.

Bakeng sa ho etsa khetho e nepahetseng ea tafole ya referense ke diodes le diode marokho.

Manufacturers diode marokho

Har'a thepa ea motheo bakeng sa mabone koteleme rectifiers letoto la lihlooho tse 1N4007 le MS250 etsoa ke Diotec. Ba li etselitsoe bakeng sa voltages ho fihlela ho 1000 V. Tabeng ea pele, diode borokho oa potoloho e na le diodes a mane o ile a lokisetsa ka boto potoloho, 'me ka bobeli ba eona e hlahisoa e le kopano ea diseke ee. Leha letoto la lihlooho tse 1N4007 ka tšeptjoang ka ho sebetsa, kopano MS250 pholosa boima le footprint. Ho sa tsotellehe sena, letoto la tlhokeho 1N4007 ntse phahameng, e le theko e akhetse haholo hoo e haholo-holo e behilweng ke litšenyehelo tsa liqeto tsa koporo.

Ho etsa thepa e teng theknolojing ea MS letoto la lihlooho tse diode marokho tsoela pele. Joale tsohle 4 tsa borokho kristale a hlomamisa hammoho, e leng eketsa mocheso lona ho hanyetsa ka lebaka la ho ditekanyetso le tshwano.

Tšepahala rectifier decreases le eketseha mocheso ambient. bothata bona bo rarolohile ke letoto sesebediswa B250S2A balwa ka morao-rao ba 2.3 A le 0.7 A transmissive ka 125 ° C.

bahlahisi fetisisa reka diodes bacha, eaba rectifiers loketse. khamphani e kopanela Diotec tlhahiso ea kaofela, ho tloha ho tlhahisong ea kristale ho bokana le sephutheloana.

E mong lefatšeng ea isang khampani - IRF - nang le tsona theknoloji e buka e ikhethang fokotsa boholo ba likarolo, ntlafatsa mocheso seng, eketsa bokgoni theknoloji semiconductor. O ile a ke le 'ngoe feela hore e hlahisa metsoako bakeng sa kaofela potoloho eneji, le ho sokoloha.

bofello

Oa potoloho ea rectifier diode borokho e sebelisoa ka thepa eohle ea elektronike. Lokela ho sebetsa e tletseng e tsokoang rectifier, eo litšobotsi tse di molemo haholo ho feta ba se nang balekane-nako. Hlahloba efe kapa efe ea tsona e ka ba le nosi prozvoniv e mong le e diode.