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charging - USB-C power negotiation - Electrical Engineering Stack Exchange
We designed a power board that can deliver 5V and 3V3. Those two voltages are provided by two boost/buck converters that can deliver 3A each. The board accepts power from a USB-C socket which is
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Understanding LiPo charging / protection circuit - Electrical ...
The charging cycle for lithium ion batteries can be quite complex, especially in the case of multiple cells in series, but typically involves 4 basic steps: Read voltage, if lower than a certain value (typically 2.8V or so for Li based cells) then begin trickle charge until cell reaches safe charging level, doing this avoids damaging the cell.
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lithium ion - Why charging Li-Ion batteries in cold temperatures would ...
Accordingly to what I've found in several sources (user's manual of electronic devices, various forums, e.t.c.) I shouldn't charge my Li-Ion batteries in cold temperatures because this would harm t...
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How do USB charging and "smart" charging ports (e.g. Anker's PowerIQ ...
It's not about charging the battery, it's about making the battery charger (which is inside the device) recognize that it's allowed to use lots of power from the USB port.
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charging - Is it possible to convert a USB Legacy charger to support ...
It will just make much more sense to buy a Type-C PD charger if your devices support it, rather than still dealing with the problem of which USB adapters you can use to convert to Type-C and to which voltages - e.g. a 45W charger can output 3A at 15W but it can alsp output 20V but up to 2.25A so that your devices can request the best possible ...
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voltage - How does charging a phone battery work? - Electrical ...
Cell phone battery charging is handled through a battery charging IC. Typically a switching regulator that varies voltage and current in order to charge the battery. It also measures battery voltage and temperature to know when to cut the charging, through a mosfet.
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inrush current - PMOS based pre-charging and voltage soft start circuit ...
I have to charge a bulky DC link capacitor (3000 µF, 400V). I am trying to limit the inrush current and ramp up the voltage in a soft-start manner by using a pre-charging circuit centred around a P...
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Lead acid battery boiling during charging: this is bad, right?
I'm an electrical engineer who could use some help understanding lead acid batteries. I recently bought an old motorcycle and charged the battery on my trusty automotive style battery charger afte...
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How to Calculate the time of Charging and Discharging of battery?
How do I calculate the approximated time for the Charging and Discharging of the battery? Is there any equation available for the purpose? If yes, then please provide me.
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Simplest current limiting method for battery charging
Charging/equalizing cables compatible with the maximum current expected to charge the Aux-12V battery. Surely anything of at least of 4 mm^2 or 12AWG, for at least 20A and a couple of meters long, but 6 mm^2 or 10AWG is good up to 30A; and 8AWG goes up to 40A safely, without overheating.