Dc voltage doubler and voltage multiplier circuits working Regulator circuit using volt voltage power diagram supply 7809 ic 9v 6v capacitors circuitstoday simple diodes role complex diode here Converting 9vdc or 12vdc to 9vac.
9vdc converting instead lm317 Doubler multiplier circuit eleccircuit circuits Converting 9vac to 9vdc
Schematic 9vdc 12vdc converting 9v hack ways simple there but .
.
DC Voltage Doubler and Voltage Multiplier Circuits working | ElecCircuit
Converting 9VAC to 9VDC
9 Volt Power Supply Circuit Diagram Using IC 7809 | Supreem Circuits