Mota yemagetsi lithium bhatiri charger yakajairika kukanganisa

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Draagbare kragstasie verskaffer

1. Kazhinji, iyo fuse chubhu inowanzoitika, iyo fuse chubhu inosanganisa kuti kune pfupi dunhu kana kutadza kutadza kwemukati wejaja yebhatiri. Izvi zvinodaro nekuti charger iri kushanda kwenguva yakareba mumhepo yakakwira, hombe yazvino, yakakwira kudarika kutadza kwemidziyo yemukati.

Mukuwedzera, kuchinja kwegridi voltage kunogona kukonzera ikozvino kuwedzera ikozvino mujaja uye kuridza fuse. Maintenance method: Chekutanga nyatsotarisa zvikamu zvakasiyana-siyana pamusoro pebhodhi kuti uone kana kuonekwa kwezvikamu izvi kwakasvibiswa kana kuti electrolyte inoputika, uye hapana mutsauko. Ukoshi hwekupikiswa kwesimba rekupinda hunoyerwa.

Kana isingasviki 20ok, iyo yekumashure ine nharaunda pfupi-circuit chiitiko, uyezve inoyera kukosha kwe 4 rectifier diode yakanaka, anti-resistance values, uye maviri ezvino anomisa resistors. Ona kana paine pfupi dunhu kana kupisa Iyo yekupedzisira inodzikira kana iyo magetsi sefa capacitor inogona kuita yakajairika kuchaja uye kuburitsa, switch yemagetsi chubhu inopwanya kukuvadzwa, iyo UC3842 uye zvikamu zvakatenderedza zvinopaza, kupisa zvakaipa, nezvimwe. Kuti utsanangure, nekuda kwekuyera kwemugwagwa, zvinokwanisika kuita kuti chiyero chekuyera chive chisina kururama kana chenhema, saka chikamu chinogona kusungirirwa kuyera.

Kana pasati pave nemamiriro ari pamusoro, pima kana tambo yemagetsi yekupinza uye tambo yemagetsi inobuda ipfupi-inotenderera. Kazhinji, mune fuse fuck chikanganiso, iyo rectifier diode, magetsi emagetsi sefa capacitor, switching simba chubhu, UC3842 ndiyo chidimbu chekurasikirwa, mukana wekukuvara unopfuura 95%, uye zviri nyore kuongorora izvi zvikamu, zviri nyore kusabvisa kukanganisa. 2.

Hapana DC inobuda kana voltage inobuda isina kugadzikana, kana iyo fuse isina kusimba, pasi penzira dzemutoro. Rudzi urwu rwekukundikana runoda: overpressure, overcurrent protection circuit ine rakavhurika redunhu, pfupi dunhu chiitiko; Zhenyi redunhu harishande Iyo magetsi inowandisa, iyo rectifier diode yakatyoka mune yakakwirira-frequency rectification sefa redunhu: firita capacitor kuvuza, nezvimwe. Nzira yekuchengetedza: Chekutanga, yera kana zvikamu zve-high-frequency pulse transformer zvakakuvadzwa ne-multimeter: Kusabatanidzwa kwepamusoro-frequency rectifier diode kuparara, mutoro wacho ipfupi, uye wozoyera iyo DC voltage yeimwe neimwe inobuda, kana iyo inobuda ichiri zero Inogona kunge iri dunhu rekutonga remagetsi kunze kwekukanganisa.

Chekupedzisira, iyo yakakwira-kumhanya sefa yedunhu yakamira kuyera kana iyo rectifier diode uye yakaderera-voltage sefa capacitor zvakuvadzwa. Kana zvikamu zviri pamusoro zvakakuvadzwa, zvikamu zvitsva zvinotsiviwa, uye kukanganisa kukuru kunogona kubviswa. Nekudaro, teerera kune: Mutsetse wekubuda wakatyoka kana solder, iyo solder inogonawo kukonzera kutadza uku, teerera kune iyi mamiriro panguva yekugadzirisa.

3. Iko hakuna DC inobuda, asi inishuwarenzi sirika iri intact ichi chiitiko chekuti charger haishande, kana kupinda munzvimbo yekudzivirira mushure mebasa. Nzira yekuchengetedza: Kutanga, inofanira kutongwa kana kwete kuchinja kwekutonga chip UC3842 yejaja iri mumamiriro eWangzuo kana kuti yakakuvadzwa.

Iyo chaiyo yekutonga nzira ndeyekuwedzera iyo 7 tsoka mbiri yebhatiri voltages yeUC3842. Kana 7 tsoka voltages ari akajairika uye 8 tsoka + 5 ∨ voltages, 1, 2, 4, 6 tsoka anewo akasiyana voltages, ipapo dunhu rine Locking, UC3842 ari yakajairika. Kana iyo 7 tsoka voltage yakaderera, pini yakasara haina voltage, ipapo UC3842 yakakuvadzwa.

Kukuvadzwa kwakanyanya ndeye 7 tsoka dzekupaza, 6, 7 tsoka kuputsika uye 1, 7 tsoka mbiri. Kana aya mashoma tsoka asina kupepetwa, charger haisati yatanga zvakajairika, uye inoratidzwa zvakare kuti UC3842 yakakuvadzwa uye inofanira kutsiviwa zvakananga. Kana zvakatemwa kuti chip haina kushata, inotariswa kana ikozvino muganhu kuramba kwegedhi inotengeswa, iyo solder welding kana kusiyanisa kukosha uye switching simba chubhu pachayo haina kuita zvakanaka.

Pamusoro pezvo, tambo yekubuda kwemagetsi inobviswa kana kukonzeresa kukonzeresa kutadza uku, saka inofanirawo kutariswa panguva yekugadzirisa. 4. DC voltage inobuda yakawandisa kutadza kunowanzo kuve isina kujairika neyakagadziriswa sampling uye regulator control circuit, in charge, DC inobuda, sampling kuramba, kukanganisa sampling amplifier, optocoupler, simba rekudzora chip, nezvimwe.

Iyo yakavharwa yekudzora loop, chero dambudziko rinogona kukonzera kukwidziridzwa kwevoltage. Maintenance nzira: Sezvo charger iine overvoltage yekudzivirira wedunhu, iyo inobuda voltage yakawandisa inotanga kuita iyo overvoltage yekudzivirira yedunhu chiito. Saka kukanganisa uku, tinogona kubvisa iyo overvoltage kudzivirira wedunhu, kuitira kuti iyi dhizaini yekudzivirira isashandiswa, tobva yayera simba guru remagetsi emagetsi-pakarepo.

Kana iyo yakayerwa kukosha yakakwira kupfuura 1V yakakwira pane yakajairika kukosha, chikonzero cheyakanyanya kubuda voltage chiri mu control loop. Panguva ino, inofanirwa kutariswa zvakanyanya kana sampuli kuramba ichisiyana kana kukuvadzwa, iyo chaiyo referensi voltage sosi (TL431) kana optocoupler (PC817) haina kuita zvakanaka, kuderera kana kukuvara. Iyo chaiyo referensi voltage sosi (TL431) iri nyore kukuvadzwa.

Tinogona kusarura iyo chaiyo yakagadzikana amplifier nenzira inotevera: Batanidza mareferenzi eTL431 kune cathode yayo (Cathode), kushorwa kwetambo 1OK, kuwana 5 ∨ voltage. Kana iyo anode uye cathode iri 2.5V, uye vamiriri vachiri 2.

5, ichubhu yakanaka, kana zvisina kudaro ichubhu yakaipa.