Tataiso ea tjhaja ea Khamera e Potlakileng

Ho nepahala ho sa fetoheng ha motlakase / ho sa fetoheng ha monolithic ho amohela monolithicadaptara ea matla, e ipapisitseng le amplifier ea ts'ebetso e habeli ea matla a tlase le taolo e ts'oanang e ka feto-fetohang ho nts'etsapele lesoba la taolo ea motlakase hammoho le lesoba le teng la taolo.Ha e bapisoa le sebaka sa taolo se entsoeng ka li-transistors, e na le melemo ea ho nepahala ho hoholo ha motlakase o tsitsitseng le potoloho e tsitsitseng e teng, e otlolohileng ea peripheral, e fokolang ea khanyetso ea khanyetso e teng, ho fokotsa tšebeliso ea matla hammoho le ho matlafatsa matla a matla.Matla a eona a matla a ka fihla ho 80%.Mofuta ona oa phepelo ea motlakase o loketseli-charger tse potlakileng tsa li-laptopshammoho le lirekoto tsa likoto tsa video.

Potoloho ea 15v2a e nepahetseng ea motlakase e sa fetoheng / adaptara ea motlakase e tsoelang pele e bonts'oa setšoantšong.Ho sebelisoa lipotoloho tse 'ne tse kopaneng potolohong: TOP214Y monolithic power adapter (IC1), PC816A linear optocoupler (IC2), regulator e nepahetseng ea parallel regulator tl431C (C3), le amplifier ea matla a tlase a mabeli lm358 (iC4, ho kenyelletsa le li-amplifiers tse peli tse sebetsang ic4a le ic4b).

Potoloho e na le litšobotsi tse latelang:

  • ① The loop control control loop e entsoe ka ic4b, IC3, vd5, le sampling resistors R3 le R4;Loop ea hona joale ea taolo e entsoe ka ic4a, vd6, le mohanyetsi oa overcurrent discovery R6.

 

  • ② Leqhubu la taolo ea motlakase le li-loop tsa taolo ea hajoale li sebetsa ho latela molao-motheo oa "logic kapa heke", ke hore, ka nako efe kapa efe, loop eo tlhahiso ea eona e phahameng e bapalang karolo ea taolo.

 

  • ③ NSB ea bobeli ea leeme e eketsoa ho fana ka matla ho loop ea taolo.Khethollo ea bobeli e ka latela ka bo eona phetoho ea motlakase oa motlakase oa DC e le hore o ntse o e-na le litšobotsi tsa hona joale ha motlakase o tsoang ho U o fokotsehile haholo.E tla kenya boemo ba ho qala bocha ha feela ha u ≤ 0.8V.

 

  • ④ Ho sebelisoa adaptara ea motlakase e le 'ngoe ea TOP214y,' me matla a hlahisoang a fihla ho 30W.

 

  • ⑤ Ha loop ea hona joale ea taolo e entsoeng ka amplifier e sebetsang e amoheloa, ho hanyetsa ha hona joale ho hanyetsa R6 ho ka fokotsoa ho 0.1q, tšebeliso ea matla e ka fokotsoa ho 0.4W, 'me matla a matla a matla a ka ntlafatsoa.

 

  • ⑥ Eketsa boleng bo phahameng ba voltage ea maikutlo ho 46v.Mona, PC816A optocoupler e khethiloe, eo U (BR) CEO = 70V> 40V.

Tlas'a maemo a tloaelehileng, selikalikoe sa taolo ea motlakase se sebetsa, hammoho le adapter ea matla e sebetsa sebakeng se tsoelang pele sa motlakase.E kena sebakeng se tsitsitseng se teng ha ke le haufi le 2a.Hajoale, selikalikoe sa taolo se teng se sebetsa.Theminale ea in-phase input ea ic4a e hokahantsoe le lets'oao le teng la ho sibolla ur6, hammoho le terminal e kentsoeng e hokahaneng le voltage divider voltage ufy.Phanele ea ho arola motlakase e entsoe ka R8, tl431c, le r5.Ic4a e hlahisa phoso ka mor'a ho bapisa ub6 le ufy.Letšoao la U ka mor'a moo le fetoha lets'oao la hona joale ka vd5 hammoho le R1, le fetela ka har'a LED ho optocoupler, 'me ka mor'a moo le laola potoloho ea boikarabelo ba TOP214Y ho boloka tlhahiso e teng ea io ea phepelo ea motlakase kamehla sebakeng se tsoelang pele sa hona joale.Ntle le pelaelo, vd5, hammoho le vd6, li lekana le "kapa heke".Haeba loop ea hona joale ea taolo e hlahisa tekanyo e phahameng hammoho le sephetho sa loop ea taolo ea motlakase boemong bo tlaase, phepelo ea motlakase e sebetsa boemong bo tsoelang pele ba tlhahiso ea hona joale;Ho fapana le hoo, e sebetsa maemong a sa feleng a sephetho sa voltage.


Nako ea poso: May-20-2022