Dear all,
Anyone help me please. How can I multiply VAC six time? I try voltage doubler but the output is VDC. I want VAC as an output. My input is +-12VAC. My circuit doesn't consume much current (about 80mA). I don't want to use transformer since it makes my circuit bigger.
Certainly not. Effeciency will be better than transformer since no copper or iron losses are present. Also you are not wasting any power but allowing only required power to be delivered to load using electronic switch.
My general understanding of transformers is that they are reasonably efficient. I do not want to insult you but have to ask if you realize that power in equals power out minus any inefficiency. In a system that is at or near 100% efficiency the multiplication of the voltage by 6 will result in a current of 1/6 the input current. 80 ma/6 = 13.3 ma. If you've considered that then the next question would be - how efficient does the "transformer" have to be if a normal transformer is not sufficient?
if its only pulling 80 Ma, then use an itty bitty audio transformer. just look inside a disposable flash camera, they haev transformers that step up the voltage to 300 volts.. very simple... what is the final voltage u desire, and for what purpose?