• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Dc motor battery charger

Status
Not open for further replies.

dknguyen

Well-Known Member
Most Helpful Member
First of all, does the chemistry of the watch battery even allow it to be recharged?

I assume you're using the motor as a generator to recover energy from somewhere. What's turning this motor? You could clamp the voltage across the battery, but a better way is to disconnect the motor from the battery if the voltage gets too high.

Neither of these measures deals with the issue of the battery being charged too fast, or the particular charging algorithm that might need to be used to tell when the battery is full (just plain old battery voltage cannot be used for some battery chemistries).
 
Status
Not open for further replies.

Latest threads

EE World Online Articles

Loading
Top