Hi, so yesterday I posted this post about a project I am making and after some feedback I am a bit clearer on what I want to do.
Basically, I've currently built this piezoelectric harvester that I plan to power with this PVDF piezoelectric material. The circuit will take in the generated voltage, rectify it, and store it in a capacitor. I also have a comparator LTC1440 with a threshold of around 2.9V (adjustable) that hopefully prevents the capacitor from discharging until the voltage in it has reached the threshold (this will probably take a very long time which is fine). I have already tested a circuit with just the capacitor and it does charge albeit very slowly.
Now, what I want to do is use the harvested energy to power a ultrasonic sensor that can transmit a signal. Put together, the device should charge the capacitor to the threshold over a period of time and then discharge to the sensor which sends a ping to a reciever before repeating the process again.
Right now I just mainly want to know if this project is feasible or not, and if it is how I could go about implementing this. If it isn't feasible, would there be some alternative that could be powered?
Thanks in advance
Basically, I've currently built this piezoelectric harvester that I plan to power with this PVDF piezoelectric material. The circuit will take in the generated voltage, rectify it, and store it in a capacitor. I also have a comparator LTC1440 with a threshold of around 2.9V (adjustable) that hopefully prevents the capacitor from discharging until the voltage in it has reached the threshold (this will probably take a very long time which is fine). I have already tested a circuit with just the capacitor and it does charge albeit very slowly.
Now, what I want to do is use the harvested energy to power a ultrasonic sensor that can transmit a signal. Put together, the device should charge the capacitor to the threshold over a period of time and then discharge to the sensor which sends a ping to a reciever before repeating the process again.
Right now I just mainly want to know if this project is feasible or not, and if it is how I could go about implementing this. If it isn't feasible, would there be some alternative that could be powered?
Thanks in advance
