How does it take 12volts and turn it into 220volts on the fly ? I'm guessing it "inverts" something :P
2007-02-21 19:37:09 · 2 answers · asked by Matthew K 2 in Science & Mathematics ➔ Engineering
There are 2 parts to the circuit. An oscillator, and a step-up transformer.
The oscillator (astable multivibrator) generates a sine wave, or more likeley a square wave. This gets "stepped up" by the transformer. The AC output isn't exactly "clean" but it works.
This basic design suffers from the fact that the transformer is working with a 50Hz - 60Hz signal. At these frequencies the transformers are big & heavy.
The alternative is to use a High Frequency oscillator (30,000 Hz) and rectify the transformer output into DC. Then a SECOND oscillator pumps out a nice "Clean" sinewave.
2007-02-21 19:48:40 · answer #1 · answered by Alan 6 · 0⤊ 0⤋
It is an active device that utilizes either an astable multivibrator or a torodial transformer to generate an approximate sine wave and amplify the voltage.
It is an active circuit meaning it has a power draw itself and will cause a large current draw on the 12 volt source because of the large voltage difference.
See: http://www.donrowe.com/inverters/inverter_faq.html
2007-02-22 03:57:54 · answer #2 · answered by sw1irly 1 · 0⤊ 0⤋