tomc

Thanks very much for your prompt reply. Forgive my ignorance but I'm not 100% confident in my understanding of voltage/current relationships. The power is generated by sliding a coil of wire in and out of a magnetic field. I understand this generates a current in the wire but I'm not sure about the voltage behavior. Could you recommend something for efficient utlisation of the small amounts of power generated in ths manner. thanks again Tom

I am a beginner at electronics and am trying to create a circuit to use small frequently-polarity-switching induced currents to generate a constant current flow for power generation reasons. I understand that if I use a conventional rectifier circuit the supply voltage must be larger than the 0.7 volt drop caused by the diode. I think I will also have this problem if I use a microcontroller and BJT. Also if I use a "precision Rectifier Circuit" which utilises an Op Amp I will have to power the op amp, thus reducing the power generated. Does anyone know of another solution or have any ideas for this problem? Thanks Tom