I'm trying to set up an energy harvesting system from the external magnetic flux generated by AC electrical machine (specifically, an induction motor). The goal is for the energy harvesting system to power a sensor, ESP8266 more specifically, and/or store it in a battery.
I already made a coil and would like your help to choose the integrated circuit component for AC/DC converter and the boost converter. It would be to convert 20mV ~ 100mV from AC to DC and then a boost converter to raise it to 3.3V and power the ESP8266 and/or store it in the battery.
I looked for an integrated circuit component that converts a voltage of approximately AC/DC and that is a voltage step-up converter, all in one component, but I didn't find it. I thought about using an op-amp and building a precision rectifier, but I don't know if it would work because it would need a power supply for the op-amp unless I use the battery for power. And then I would use an LTC3108, is that the best option? Because it is important that it is very efficient, as it is ultra-low power.
Do you guys recommend a component that already does everything? Or a very efficient rectifier and boost converter?
I already made a coil and would like your help to choose the integrated circuit component for AC/DC converter and the boost converter. It would be to convert 20mV ~ 100mV from AC to DC and then a boost converter to raise it to 3.3V and power the ESP8266 and/or store it in the battery.
I looked for an integrated circuit component that converts a voltage of approximately AC/DC and that is a voltage step-up converter, all in one component, but I didn't find it. I thought about using an op-amp and building a precision rectifier, but I don't know if it would work because it would need a power supply for the op-amp unless I use the battery for power. And then I would use an LTC3108, is that the best option? Because it is important that it is very efficient, as it is ultra-low power.
Do you guys recommend a component that already does everything? Or a very efficient rectifier and boost converter?