I am trying to use a water turbine from China to charge a lithium ion battery. The water turbine is rated to 10 watts.
I figured that should be enough to charge the battery but I can only ever get about 0.1 watts from it.
I took it apart and it looks like it is generating 3 phase AC power and then rectifying it to DC with 6 diodes.
I am then using the LM22672MRE-5.0 switching regulator to regulate the voltage to the MCP73871 battery charge management chip.
Any tips on how to get more power out of it or are the specs just wrong?
Here is a simplified schematic of the circuit I am using to rectify the 3 phase power and convert it to 5V DC. Should I be doing some kind of impedance matching to make this work better?