Hi all,
I would like to know what sort of power data represented by kWh energy meter, it is the energy derived from Apparent Power (VA) or from Active Power (Watt). I am confused of it.
Thank you.
B.Bundit
Hi all,
Revise information for the attachment file.
The purpose of this thread is to do an electrical model of the generator system (EMF voltage source + impedance).
Thank you for help.
Bundit...
Hi everyone,
I'm doing on a project of electromagnetic generator, I have a magnet bar with 10 cm length (composes of 3 blocks of sub-magnet with 2.5 cm each along its length). It moves inside a tube with 30 cm length and wrapped with coil central outside the tube (coil wrapped region from...
#VE1BLL - The tested is conducted by connecting full wave bridge rectifier with parallel storage capacitor, then measure DC voltage across the capacitor each time the piezo is hit. The calculated storage energy (W=0.5*C*sqr(dV)) gets 3 uJ at the first hit for capacitor 10 uF which is the most...
#IRstuff - The 'impact' in this work uses a metal bar to hit the piezo periodically as an impact force. The output waveform of the hit force is a pulse-like(with positive and negative amplitude).
I have attached file to engineer.com.
http://files.engineering.com/getfile.aspx?folder=2e890d93-1e10-4c31-b4a7-857ae99b83da&file=Piezoelectric_energy_harvesting2.doc
Hi all,
I' m new in this forum. Greeting to all.
I'm doing a project of energy harvesting from piezoelectric bulk type by force impact input. The output of the device when no load is a pulse like with amplitude 60-70 V.peak and pulse width about 500 us.
The standard technique of full bridge...
