My power bank output is 5 volt 2A.
Is there any circuit to increase its ampere without voltage change?
Is there any circuit to increase its ampere without voltage change?
If it's a short burst of power that needs to be fulfilled, you can add capacitors. But that doesn't do wonders, so you'd probably be disappointed. Maybe there's a solution (well, not likely) but if you don't tell what's the issue and application, nobody can actually help you.
Nope. They will waste tons of power by trying to out-regulating the other ones.
In theory something like that might eventually be a difficulty, but I don't think the power banks have a 4-quadrant regulator that will absorb current to lower the voltage.
For safety one power bank could be connected via a schottky diode. So it will only provide current once the other power bank limits the current and voltage drops by ~0.4 V.
from your posts, obviously your amplifier wants to be fed 5vdc.
as such even if you had 10,000 amps, it isn't going to give you any increase in volume.
we don't have crystal balls. we can't see what you have or are trying to do.
if you want a better answer, then you need to give us better information.
Rubbish in = Rubbish out.
as such even if you had 10,000 amps, it isn't going to give you any increase in volume.
we don't have crystal balls. we can't see what you have or are trying to do.
if you want a better answer, then you need to give us better information.
Rubbish in = Rubbish out.
In case you missed the previous post, the 5V sets the volume limit, not the current capability of the supply.
For an increase in volume, use a significantly higher power amplifier, which will use a higher voltage power supply.
For an increase in volume, use a significantly higher power amplifier, which will use a higher voltage power supply.
That changes everything, why didn't you post that in the first place? What's the available voltage and power?
Power = V^2/R, you have 2 variable here, RMS amplifier output voltage (depend on Supply voltage) and resistance (impedance) of your speaker
the only way to increase power is to increase supply voltage or reducing the load impedance, the current requirement will follow these 2 variables
let make it simple, assuming your amplifier (bridge) can output 5Vpp, the maximum power produced will be 6.25watts peak for a 4 ohm load. and the peak current will be less than 2 Amps
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How to increase the smart phone power bank Amps from 2?
Is there some kind of converter that connect between the power bank and the load?
Is there some kind of converter that connect between the power bank and the load?
As far as I know this is related to the USB standard that for safety does not allow more than 2 A output current (current limiting).
If you need more A don't use a USB device, rather a Li-Ion battery pack used for model cars/planes or power tools.
(Or parallel power banks as I suggested previously)
Don't make a BMS if you don't exactly know what you are doing.
If you do just do a google search.
And again, why don't you use a complete system for model planes or power tools?
I used a Bosch 18V battery for power tools and a dedicated charger for a bluetooth speaker. I just had to find the correct battery connection plug.
Model plane battery packs:
https://www.batterylipo.com/rc-model-lipo-battery-packs/
If you do just do a google search.
And again, why don't you use a complete system for model planes or power tools?
I used a Bosch 18V battery for power tools and a dedicated charger for a bluetooth speaker. I just had to find the correct battery connection plug.
Model plane battery packs:
https://www.batterylipo.com/rc-model-lipo-battery-packs/