10x times power generation from x input.

[HIREN DAVE]

Hello Friends,

Is it possible to store 1 mW power for required time and take 10 mW for some time?? whatever charging time i don't care but my output should be 10 times than input. I have only 1 source i.e. 1mW.

 

[godfreyl]

This is what rechargable batteries are for.

 

[jiripolivka]

This is what rechargable batteries are for.

You can also charge a capacitor by a low current, then discharge it by ten times larger current. This is how "harvesters" operate. The details depend on the power level.

 

[Venkadesh_M]

battery and capacitor both can be used but usually the battery will be used for this purpose, you can choose by your voltage level and current levels........

Usually a camera flasher is 20 times more powerful than the battery can supply, there will be a capacitor charging and if you press the capture it will be fired through the flasher...

 

[HIREN DAVE]

ok got it.
which battery should i use? can i use mobile battery which require 1w for charging? any circuit? any direct ic available??

 

[Venkadesh_M]

what is your source specifications and availability........

 

[Eshal]

Li-ion batteries are good for this purpose I think.

 

[HIREN DAVE]

ok. I have a point source of 0.75V and 1.4mA. i.e. 1mW. Now i want to charge my mobile battery using this point source. is it possible?

 

[Venkadesh_M]

you cant charge a mobile battery directly, because it is 3.7 V your source voltage shd be more than the battery voltage to charge it...

But you can seriesly connect your 6 sources to charge the battery...........

 

[Eshal]

Ofcourse you can't charge your battery. You can think it like this, let say you have a tank on your roof and now you want to fill this tank with a water. You have motor on your ground floor. So if your want to drive water up in the tank then you should need a powerful water motor.
Here, roof tank is analogous to mobile battery,
motor is a battery from which you want to charge the mobile.

Actually, when you charge the mobile then it has some potential in it stored which act as a counter source for that one from which you are charging your mobile. So first you need to overcome that voltage then the remaining voltages charge your battery.