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Battery monitoring circuit on DS2438

I need a circuit diagram for being able to isolate and monitor a 14s lithium bank.

For each pack i want to have 1 DS2438 voltage monitoring device or any other device using 1wire. Independent devices for each of the 14 packs. The problem is that they are connected in series and that the DS2438 does not have an isolated Vsens-. Can this be achieved? and if so to what cost? I want as little components as possible on each node. Low price per node as well. preferable all devices power comes from the 1wire bus.

Preferable quite good accuracy between 2.8 and 4.2V.

Note: That this is just about getting a schematic that will work. And should not be hard to do for someone that know how to isolate Voltage meassurements

Compétences : Design de circuits, Génie des Matériaux, Microcontrôleur, Mise en Page PCB

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Concernant l'employeur :
( 1 commentaire ) Alvesta, Sweden

N° du projet : #12723936

Décerné à :


Hello, Have you considered one of these devices? [url removed, login to view] Or, will you be using individually-rechargeable 18650-style cells? Problem you have is your total voltage is to Plus

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27 freelance ont fait une offre moyenne de 273 £ pour ce travail


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You may use DS2438 at the every battery separately. The problem is to make a signal circuits galvanically isolated. I can make a circuit design, hardware prototyping of the final device and the program code for Ard Plus

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Hi there, If I understand you correctly, you want t monitor few batteries with 1 DS2438. I not deeply familiar with this particularity monitor, but as well as I understand it it can be complicated since the monito Plus

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