help in choosing the right components for energy harvesting application

[jeromekang]

hi im planning to create a energy harvesting circuit that will be directly connected to a 1.2V NiMH battery to charge it and measure the current going to the battery. I would like to hear your suggestions for components to optimize this setup especially the dc-dc converter

the setup im thinking of to test the idea of the battery charging with a piezo is

piezo -> rectifier -> dc-dc converter -> battery

is this the optimal setup to avoid losses?

Thanks

 

[Prototyp_V1.0]

How much voltage from your piezo?

If you're talking about small piezo found in toys that makes sound, it's just to forget. There is almost no power at all.

 

[jeromekang]

How much voltage from your piezo?

If you're talking about small piezo found in toys that makes sound, it's just to forget. There is almost no power at all.

when i tested it in an oscilloscope, i got around 10+v pk-pk. i don't think it's found in toys, more like in audio related applications

 

[Prototyp_V1.0]

Can you post a picture of that?

How much current can you get out of it?