I found this circuit from the Russian websites, and perhaps converter circuit is interesting. This circuit can convert 5 V to 230 V. It may be bit difficult to build, because as you can see in the schematic, most semiconductor components are made by Russia. But probably with a bit of surfing you can find references part.
Parts list : Chips: DD1 - K155LA3 DD2 - K1554TM2 Transistors: VT1 - VT3 - KT698G, VT2 - VT4 - KT827B, VT5 - KT863A Resistors: R1 - 910, R2 - 1k, R3 - 1k, R4 - 120 Watt 0.25, R5 - 120 Watt 0.25, R6 - 500 0.25 W, R7 - R8 - 56 Ohm 2W, R9 - 1.5 kOm 2W Diode VD5 - KC620A two series Capacitors: C1 - 10H5 C2 - 22uF/450V Transformer: T1 - the two windings in series-connected 10 volt current 16A, a winding 220-volt current 1A, the frequency of 25kHz
230to 1.5 volt d.c. convert diagram
Hi,
when correctly viewed are the 5 Volts used for the oscillator circuit only, the power comes from 12 Volts.