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ELFORUM - Forumul electronistilor

Incarcare descarcare baterie


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Nu stiam ce denumire sa dau la Topic...dar, incerc sa fac un charger/discharger la un acumulator, folosind circuitul de mai jos(partial).

Prima intrebare este daca R4 se monteaza sau nu, si daca nu cumva trebuie sa pun 2 rezistori de 22K.


In lipsa acumulatorului, la pozitia "charge" apare tensiune si pe "REZISTENTA", si nu ar trebuii cred eu...

Ce e incorect la circuit ?...



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R3&R4 nu ar trebuii sa aiba valoarea 20(22k) ca sa rezulte 10K ? sunt in paralel prin R1 & R2, nu ?

Da, cam lipseste un rezistor dar unde ? intre U1/Pin4-GND sau intre U1Pin4-OUT[-] ? problema apare cand nu are bateria montata..



L.E: da stiu vorbesc prostii... o sa pun o rezistenta intre U1/Pin4-GND sa vad ce si cum, si trebuie sa schimb rezistentele alea 2 cu 22K

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Q1 si Q2 sunt in paralel, daca pun R3/R4 de 10K, rezulta o rezistenta de 5K.

Asta ar afecta divizorul rezistiv, Q1 & Q2 vor fi atacati in grila cu prea putin, nu vor deschide complet...


sau nu ?...

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