Member level 3
Hi! I have 880mV 8Hz AC signal and doing two experiments : diode bridge and voltage multiplier rectification and output power measuring depending on load. So i connected diode bridge and precision potentiometer as a load. Measured current and voltage and got maximum power with 500Ohm load (240mV * 0.97mA = 232.8mW) . The did same experiment using voltage quadrupler scheme https://upload.wikimedia.org/wikipe...adrupler.svg/240px-Voltage_quadrupler.svg.png . Soldered same diodes as in diode bridge. With that voltage doubler i got max power with 2k load , and power was (1,16V*0,58mA=672.8 mW) . Why the power is much bigger compared diode bridge ? Please help, thanks!