How Does The Invereter (dc-ac converter) Work ?!!PlzZ?

Question

I wanna say that in the SIMPLE way ?! and in general PLZ HELP

Answer 1

You can imagine power supply feed to your system as the food that we eat everyday. High quality food will help us to perform health condition and good working capability, so does power supply.
When we look into high end product we will find that they put a lot of investment to achieve high quality power supply design, on the other side low end product invest only low quality power supply design.
Generally many audio manufacturer put their attention on power supply start from rectifier circuit which convert AC voltage to DC voltage, they ussually don't care about the power supply stage before rectifier circuit.
It seems like many audio designer prefer to pay more attention designing complicated amplifier circuit build by many gain stage which may destroy the final sound quality.
That's not a perfect philosophy because AC Line voltage influence much to the overall perfomance of the system.
Mark Levinson No 32 Pre Amp is one of the top class product which utilize AC DC AC converter principle to maintain supply voltage start from AC line voltage.
Power 300 is the new breakthrough in Audio power supply technolgy because it take care of power supply start from your wall. It provide you stable, noise free, and low impendance source feeding into your system so that your system can improve its quality until the level that it could never achieve before.

Answer 2

There are 2 basic kinds.
1) Rotary. A DC motor turns an alternator which yields AC voltage.

2) Solid state. A circuit of transistors etc switches the DC current back and forth from + to - at 60 Hz. This results in a somewhat square wave form vs. the sinusoidal form from a rotary inverter.

Answer 3

There are a few types but probably most used is Pulse Width Modulation (PWM). Transistors switch the dc on and off at different times (high power electronic devices can only really be on or off otherwise the power disipated in them would be too high)

Really you need a diagram to see how its done but I couldn't see any good ones on the internet. Basically the on pulses are short then longer then shorter within one cycle. This causes the current generated in the load to look like a sine wave and its the current that we are interested in. This works best in inductive loads.

If you cannot find anything that makes simple sense, let me know and I'll send you a simple drawing

Answer 4

An inverter simply takes a DC (bettery) voltage and uses a circuit to make it an a.c. signal (one that reverses direction ) and then usually passes it through a transformer to step up the voltage.

Here's more info than you'll ever want ...

http://en.wikipedia.org/wiki/Inverter_(electrical)