- 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
- TP5100 battery charging IC PCB design burning out
It's an TP5100 battery charging IC, in my case configured for a two cell, 8 4 V pack I followed every step of the datasheet and its diagram, it's basically a copy, and now it's the third IC that just completely burns out when I connect the charger I'm charging with 12 V, just like the datasheet specifies
- How does a USB C port provide the power to charge laptops?
Coupled with higher voltage, that gives a lot higher charging power All in all, I guess that the laptops will as well charge with 5V (on USB A charger), just far slower And based on what I saw from Apple for their new Macbook, the charger is 29W, so most likely a Profile 3 (a bit under spec), it seems then to be only 12V
- How can I retrofit an LED to indicate charging? - Electrical . . .
I'm wondering how you would go about adding a simple circuit to indicate charging is taking place My only idea is to add an LED with a current-limiting resistor in parallel with the battery so the LED turns on at about 18V When the charger is plugged in, the 18V will charge the battery and a small current will light the LED
- lithium ion - If Li-Ion battery is deeply discharged, is it harmful for . . .
Yes, it is dangerous to attempt to charge a deeply discharged Lithium battery Most Lithium charger ICs measure each cell's voltage when charging begins and if the voltage is below a minimum of 2 5V to 3 0V it attempts a charge at a very low current If the voltage does not rise then the charger IC stops charging and alerts an alarm
- charging - Battery imbalance - two 12v lead-acid 100ah in series . . .
I have just installed two brand new 12v lead-acid batteries in series to for my 24v “house system” on my boat I connected them to my 24v charger to ensure they were charged to 100%, to synchronise
- charging - 2S Lipo charger circuit with Adafruit MCP73831 OR . . .
When charging, GPIO's 1, 2, and 3 must activate in the following order, with at least 10ms (ballpark guess) of space inbetween: 1 - LOW, 10ms, 2 - HIGH, 10ms, 3 - HIGH
- How do chargers with different output values work?
In this case if I were to plug in the power bank to my laptop charger how do I know that it's charging at the 15V=3A that it should and not at 20V? On the other hand, if I were to charge my laptop with the same power bank (output: 5V=3A, 9V=2A, 15V=1 2A, same as input) could the power bank be damaged?
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