wanted dc to ac converter schematic

hi, has anybody got link / schematic for a 12vdc to 24vac ( 5 watt) converter , its to power a digital color board camera,.

i`ve been doing a fair bit of looking around online , but come up with nothing. some have posted same type of question , even they have come up with no schematics etc no usefull information .....

converter must operate from 12vdc ( battery ) , mains power is not a option .
not interested in buying one already made.

any one help ?
thanks, mark k

If you put 12 into a square wave oscillator, you will be able to get 0-12V square wave output. Capacitor couple this output to a 1:2 transformer and you will be getting 24VAC that needs to be filtered. If you want the frequency to be specific, you will need to do more work.

c_mitra said:

If you put 12 into a square wave oscillator, you will be able to get 0-12V square wave output. Capacitor couple this output to a 1:2 transformer and you will be getting 24VAC that needs to be filtered. If you want the frequency to be specific, you will need to do more work.

Click to expand...

hi, its 50hz ,

thanks, !

mk

turbo1600 said:

not interested in buying one already made.

Click to expand...

If you feel like experimenting, this is a simple method to turn 12VDC into 24VAC sinewaves. It combines:

* full H-bridge
* oscillating action through LC 2nd order butterworth configuration
* automatic detection of resonant frequency
* boosts supply voltage to a higher voltage
* turns square waves into sine waves



L & C values must be custom selected, for the desired frequency, to provide the desired output voltage to the load.

Startup is easier without a load. However amplitude immediately soars to a high voltage without a load. This can be a problem. Experimentation is needed to make it work.

This method may turn out to be too farfetched to be usable. Nevertheless it demonstrates principles which could be adapted for your purposes.