SLKORTharollo ea Bakhanni ba Relay e Nyenyane

Mabapi le Slkor:

Slkor e ikarabella ho Shenzhen, Profinseng ea Guangdong, China. Nts'etsopele ea k'hamphani e tsamaisoa ke lisebelisoa tse ncha, lits'ebetso tse ncha le lihlahisoa tse ncha. Sehlopha sa tekheniki sa Slkor se entsoe haholo-holo ke litsebi tse tsoang Univesithing ea Yonsei e Korea Boroa le Univesithi ea Tsinghua e Chaena. Ba ithutile mokhoa oa machaba oa tlhahiso ea li-silicon carbide MOSFET le theknoloji ea diode ea matla a ho hlaphoheloa ea matla a ho hlaphoheloa ka potlako ea moloko oa bohlano. Ho tloha boemong ba eona ba pele e le k'hamphani ea meralo e sa sebetseng hantle, Slkor e fetohile k'hamphani e kopaneng e kopanyang lipatlisiso tsa moralo le nts'etsopele, tlhahiso, thekiso le lits'ebeletso tsa tekheniki. Slkor ke khoebo ea naha ea theknoloji e phahameng 'me e fumane lengolo la tiiso ea tsamaiso ea boleng ba ISO9001 hammoho le litifikeiti tsa EU tse kang ROHS le REACH.

Slkor e na le litsi tsa lipatlisiso le nts'etsopele Busan, Korea Boroa, Beijing le Suzhou, Chaena. Boholo ba tlhahiso ea li-wafer le ho paka li-chip le liteko li etsoa ka hare ho China. Ntlo-kholo e Shenzhen e na le lilaboratori le ntlo ea polokelo e bohareng. Khokahano ea tšebelisano ea machaba ea k'hamphani e namela lefats'eng lohle, e sebeletsa bareki ba fetang likete tse leshome lefatšeng ka bophara. Slkor o kentse kopo bakeng sa liqapi tse lekholo tse nang le litokelo tsa molao mme o fana ka mefuta e fetang 2000 ea lihlahisoa. Ba thehile litsamaiso tse felletseng tsa taolo le phallo e hlophisitsoeng ea mosebetsi. Ka litšebeletso tsa boleng bo holimo le tse tloaelehileng, "SLKOR" brand e se e fumane botumo ka potlako, setumo le karolo ea 'maraka. Lihlahisoa tsa Slkor li kenyelletsa diode, transistors, lisebelisoa tsa motlakase tse fapaneng, le lisebelisoa tsa taolo ea matla, tse arotsoeng ka lihlopha tse tharo tse kholo. Ba boetse ba hlahisitse lihlahisoa tse ncha tse kang Hall sensors, ADCs le BMS.

1. Tataiso ea Kopo

Li-relay tse nyane li sebelisoa hangata lits'ebetsong tsa elektroniki ho laola ho fetoha ha potoloho, 'me li na le ts'ebeliso e atileng ho lisebelisoa tsa indasteri, lisebelisoa le lisebelisoa tsa lapeng. Pelo ea lipotoloho tsa sejoale-joale tsa taolo hangata ke li-chips tsa komporo tse joalo ka li-MCU, DSPs, le FPGAs. Li-chips tsena tsa mantlha ha li na matla a lekaneng a ho laola ka kotloloho li-relay tse nyane mme li ka tsamaisoa ke SLKOR's li-transistors tse nyane BC817-25, BC848B, BC847B, le li-MOSFET tse nyane 2N7002E, SL2302S, SL2300, SL3400, SL3402, le li-arrays tsa Darlington ULN2001D, ULN2003 jj.

Mohlala o latelang, re tla sebelisa ho khanna ha mochine o monyenyane o matla o phahameng oa JQC-3FF/12VDC-1ZS (551) ho tloha HF e le mohlala. Coil ea relay e na le motlakase o lekantsoeng oa 12V, motlakase oa ketso oa 9V, matla a phahameng a 15.6V, le khanyetso ea 400Ω. Ha e tsamaisoa ke 12V, coil ea hona joale ke 30mA. Mona re tla hlahisa moralo oa ho khanna relay e nyane ka BC848B, SL2302, le ULN2803AS, ka ho latellana. Ho nka mohlala oa STM32F030C8T6 MCU e le mohlala, pini efe kapa efe ea IO e ka fana ka moeli o ka holimo ho 25mA oa ho hula kapa oa ho theola, 'me moeli o felletseng oa hona joale oa ho hula kapa oa ho theola bakeng sa lithakhisa tsohle tsa IO ke 80mA. Ka hona, ha u sebelisa lithapo tsa IO, ho lokela ho ba le moeli o lekaneng. Boleng bo tloaelehileng ba sehanyetsi se fokolang sa ho hulela fatše bakeng sa phini ea IO ke 40KΩ. Ha e tsamaisoa ke 3.3V, haeba pinana ea IO e hlahisa 8mA ea hona joale, bonyane bo phahameng ba boemo bo phahameng ke 2.9V, 'me haeba pinana ea IO e hula 8mA ea hona joale, tekanyo e phahameng ea tlhahiso e tlaase ke 0.4V.

2. U sebelisa SLKOR BC847B ho Dtsoha

Motlakase-emitter voltage (VCEO) ea BC847B transistor ke 45V, 'me mokelli oa hona joale (IC) ke 100mA. Phaello ea hajoale ea DC (HFE) e tloha ho 200 ho isa ho 450, 'me matla a phahameng a pokello ea emitter ke 600mV. Matla a tloaelehileng a ho kenya (CIB) ke 9pF.

Ha o khanna coil ea relay, transistor e sebetsa ho cutoff (relay release) kapa saturated conduction (relay actuation) state.

Nakong ea phetoho ho tloha ho relay actuation ho ea ho lokolloa, coil ea relay e hlahisa matla a morao a motlakase (EMF). Matla a bolokiloeng ka har'a coil a ntšoa ka diode ea freewheeling (D) le khanyetso ea coil. EMF e ka morao e tlameletsoe ho theoha ha motlakase oa pele oa 0.7V ho pholletsa le diode, e leng tlase haholo ho feta matla a ho senya a transistor, kahoo e sireletsa transistor.

Litekanyetso tsa li-resistors R1 le R2 potolohong li tlameha ho etsa bonnete ba hore transistor e kenella ka mokhoa o ts'epahalang ka botlalo ha motlakase o kenang ke 2.9V. Ho nka HFE ea 200 bakeng sa BC847B transistor le relay drive ea hona joale ea 30mA, setsi sa hona joale (IB) se baloa e le 0.15mA (30mA/200). Ho etsa bonnete ba ho tlala ho tebileng, hona joale motheo o eketsoa ho 0.3mA. Ho nka hore motlakase oa motheo oa emitter (VBE) ke 0.7V ha transistor ea BC847B e tletse 'me motlakase oa boemo bo holimo oa STM32F030C8T6 microcontroller (MCU) ke bonyane 2.9V, motlakase ho pholletsa le resistor R1 e lokela ho ba 2.2V.

Resistor R2 e eketsoa ka mokhoa o ts'epahalang ho khaola transistor ea BC847B tlasa maemo a mabe. Ha VBE e le 0.7V, ea hona joale ka R2 ke IR2=0.7/22=0.032mA. Ho etsa bonnete ba ho tlala ha botebo, kakaretso ea hajoale ka mohanyetsi R1 e lokela ho ba IR1=0.3+0.032=0.332mA. Ka hona, boleng bo phahameng ba ho hanyetsa bakeng sa R1 ke R1=2.2/0.332=6.63KΩ. Ho khetha R1 joalo ka 3.3KΩ ho netefatsa hore transistor ea BC847B e ka kena ka har'a saturation e tebileng esita le ka likarolo tse fapaneng tsa paramethara. Boemong bo tebileng, ha phepelo ea motlakase e le 12V, bonyane motlakase oa relay drive ke 11.4V, e lekane ho netefatsa ts'ebetso e tšepahalang ea relay.

Nako e sa fetoheng ea ho khanna e ka batlisisoa e le R=R1|R2=2.9KΩ, le RC=2.9KΩ*9pF=26.1pS. Nako ea ts'ebetso ea phetoho e khuts'oane haholo!

Ha STM32F030C8T6 MCU e hlahisa motlakase oa boemo bo tlaase, o leng boholo ba 0.4V, motlakase oa base-emitter oa transistor ea BC847B o ka tlaase ho 0.4V, ho netefatsa hore ho fokotseha ho ka tšeptjoang bakeng sa ho lokolloa ha relay.

Ho netefatsa ho ts'epahala ho hoholo, ho khothaletsoa ho nolofalletsa lihanyetsi tse fokolang tsa ho theola (boleng bo tloaelehileng ba 40KΩ) bakeng sa boema-kepe ba I/O bo hlophisitsoeng ka har'a software bakeng sa STM32F030C8T6 MCU.

3. U sebelisa SLKOR SL2302 ho Dtsoha

The SLKOR SL2302 ke letšoao le lenyenyane la N-channel MOSFET. Matla a eona a mangata a ho ntša metsi (VDS) ke 20V, boholo ba motlakase oa heke-source voltage (VGS) ke 12V, 'me boholo ba ho hanyetsa (RDS(on)) ke 85mΩ ho VGS = 2.5V le ID = 3.1A. Matla a phahameng a threshold voltage (VGS(th)) bakeng sa conduction ea heke ke 1.2V, ha bonyane ke 0.65V. Matla a tloaelehileng a ho kenya (CISS) ke 300pF.

Ha STM32F030C8T6 e hlahisa matla a phahameng a bonyane 2.9V, ho nka R1 = 10KΩ le R2 = 100KΩ, motlakase o tsitsitseng hekeng ea SL2302 (VGS D) o baloa e le (100/(100+10)* 2.9 = 2.64V. Sena se tiisa hore SL2302 e lula e le maemong a ts'epahalang a super saturation conduction. Ha o le maemong a holimo, khanyetso ea conduction ea SL2302 ha e phahametse 85mΩ. Ho nka matla a 12V, motlakase oa relay o haufi haholo le 12V, o lekane bakeng sa ts'ebetso e tšepahalang ea relay.

Ha STM32F030C8T6 e hlahisa motlakase o tlaase, o nang le matla a mangata a 0.4V, motlakase oa SL2302 oa heke o ka tlaase ho 0.4V, ho netefatsa hore ho fokotseha ho ka tšeptjoang le ho lumella ho lokolloa ka mokhoa o tšepahalang oa relay.

Nako e sa fetoheng ea ho khanna e ka batlisisoa e le R = R1|R2 = 9.1KΩ, le RC = 9.1KΩ * 300pF = 2.73ns. Nako ea ts'ebetso ea phetoho e khutšoanyane haholo! Ha li-relay li fetoha ho tloha actuation ho ea ho lokolloa, coil e hlahisa matla a morao a motlakase (EMF). Matla a bolokiloeng ka har'a coil a ntšoa ka diode ea freewheeling (D) le khanyetso ea coil. EMF e ka morao e tlameletsoe ho theoha ha motlakase oa pele oa 0.7V ho pholletsa le diode, e leng tlase haholo ho feta matla a ho senya a MOSFET, kahoo a e sireletsa. Ho netefatsa ho ts'epahala ho hoholo, ho khothaletsoa ho nolofalletsa mohanyetsi o fokolang oa ho theola (boleng bo tloaelehileng ba 40KΩ) bakeng sa boema-kepe ba I/O bo hlophisitsoeng ho software bakeng sa STM32F030C8T6.

4. U sebelisa SLKOR ULN2803AS ho khanna

SLKOR ULN2803AS ke mokhanni oa transistor oa NPN Darlington o nang le likanale tse robeli le li-diode tsa freewheeling tse hahelletsoeng ka hare. E loketse ho khanna li-relay tse nyenyane tse ngata, li-motor tse nyenyane tsa stepper, li-solenoids, li-indicator, joalo-joalo. Matla a eona a phahameng ka ho fetisisa ke 50V, 'me palo e kholo ea mokelli oa mocha o le mong ke 500mA. Matla a phahameng ka ho fetisisa a mokelli-emitter saturation voltage ke 1.1V ho mokelli oa hona joale oa 100mA, 'me matla a mangata a ho kenya letsoho ke 2.4V ha motlakase oa motlakase o ntse o sebetsa ho 200mA. Nako e phahameng ea ho kenya letsoho ke 1.35mA ka matla a ho kenya letsoho a 3.85V, 'me boholo ba ho kenya letsoho (CI) ke 25pF.

STM32F030C8T6 e sebelisoa e le molaoli ea ka sehloohong, 'me boholo ba likou tsa eona tsa I/O li ka khanna ka kotloloho lintho tse kenang tsa ULN2803AS. Motlakase o fokolang oa boemo bo phahameng bo phahameng ke 2.9V, 'me mocheso o phahameng ka ho fetisisa oa boemo bo tlaase ke 0.4V, o finyellang ka botlalo litlhoko tsa ho khanna ULN2803AS. Ho ntlafatsa tšireletso ea tšitiso ea STM32F030C8T6, mohanyetsi oa 560Ω o ka hokahanngoa ka letoto lipakeng tsa boema-kepe ba I/O le tlhahiso ea ULN2803AS. Bakeng sa ho khanna li-relay tse nyane, li-diode tsa kahare tsa freewheeling tsa ULN2803AS li fana ka bokhoni bo lekaneng ba ho tsamaisa likoloi, ka hona ha ho na tlhoko ea ho eketsa li-diode tse ling tsa mahala. Haeba ts'epehi e phahameng haholo e hlokahala, ho ka kenyelletsoa li-diode tse arohaneng tsa freewheeling. Nako e tloaelehileng ea ho chencha ea ULN2803AS e haufi le 1μs, 'me bakeng sa ho khanna li-relay tse nyane, ha ho na palo e eketsehileng e hlokahalang.

Ho nka matla a 12V, bonyane motlakase oa relay drive ke 10.9V, e lekaneng bakeng sa ts'ebetso e tšepahalang ea relay. Ha STM32F030C8T6 e hlahisa motlakase o tlase, o nang le matla a phahameng a 0.4V, ULN2803AS e ka khaola le ho lokolla relay ka botšepehi.

Ho netefatsa ho ts'epahala ho hoholo, ho khothaletsoa ho nolofalletsa mohanyetsi o fokolang oa ho theola (boleng bo tloaelehileng ba 40KΩ) bakeng sa boema-kepe ba I/O bo hlophisitsoeng ka har'a software bakeng sa STM32F030C8T6.

SLKOR e fana ka lihlahisoa tse phahameng tse kang silicon carbide (SiC) diode le SiC MOSFETs, IGBTs, le moloko oa bohlano li-ultra-fast recovery power diode, tse ka finyellang litlhoko tsa liindasteri tse kang likoloi tse ncha tsa motlakase, lisebelisoa tsa boemo bo phahameng, puisano le matla, matla a letsatsi a photovoltaic, lisebelisoa tsa bongaka le marang-rang a indasteri. SLKOR e boetse e fana ka lihlahisoa tse sebelisoang ka kakaretso tse kang li-diode tsa Schottky, li-diode tsa tšireletso tsa ESD, le li-diode tsa khatello ea nakoana ea TVS, hammoho le lisebelisoa tsa matla tse kang tse phahameng.-voltage MOSFETs, mahareng-Li-voltage tsa MOSFET, le li-MOSFET tse nang le matla a tlase, li-thyristors, le Silicon control rectifier SCR, le li-chips tsa taolo ea matla tse kang LDOs, AC-DC, le DC-DC chips. Ho feta moo, SLKOR e fana ka lits'ebeletso tse tlatselletsang joalo ka li-sensor, li-optocouplers tse lebelo le phahameng, le li-oscillator tsa kristale bakeng sa lits'ebetso tse fapaneng lihlahisoa tse kang li-smartphone, lilaptop, liroboto, matlo a bohlale, IoT, mabone a LED, lihlahisoa tsa dijithale tsa 3C, liaparo tse bohlale, le IoT.

SLKOR e ikemiseditse ho aha sethala se nang le tikoloho, se kopantseng, le se kenyeletsang bohle. Webosaete ea semmuso ea k'hamphani e na le litšiea tsa tekheniki blogs, karolo ea litsebi, sliphetoho, elektronike blogs, 'me matla a indasteri. The "SLKOR Theknoloji ea Thuto Hall "e ntse e reroa, ka merero ea ho mema litsebi tsa machaba le litsebi ho fana ka lipuo tsa phatlalatsa. Ho tla ba le ho thulana ha maikutlo, lipuisano tsa thuto, le mokete oa mehopolo, ho fana ka sethala sa ho ithuta le puisano bakeng sa basebetsi-'moho le boitsebiso ba elektronike. SLKOR e boetse e kopanya moea oa bonngoe, ho ikitlaelletsa, le katleho ho tloha lipapaling ho ea moetlong oa eona oa mosebetsi, ho buella mosebetsi o thabisang le bophelo bo thabileng. Khamphani e thehile "SLKOR Warriors Basketball Team" 'me e lula e tšoara liketsahalo tse fapaneng tsa setso le boithabiso. SLKOR e ts'ehetsa moetlo oa koporasi oa "Botšepehi, Tsoelo-pele, Boiketlo, Lintlha," le boleng ba boitšoaro ba ho hloka leeme, ho buleha, le tšebelisano, "U se ke ua etsetsa ba bang seo u sa batleng ho se etsa ho uena" ho sebetsa le barekisi, balekane ba liteishene, bareki le balekane ba ts'ebelisano ho khothaletsa nts'etsopele ea lefats'e ka theknoloji le lihlahisoa, le ho fihlela pono ea k'hamphani ea ho ba moetapele indastering ea semiconductor.