Building an inverter

[Arpit]

What would be the easiest way to make a sine wave of about 12-13 volts
RMS, capabale of sourcing a heap of current? My knowledge of designing
circuits is extrememly limited, hence me asking such a simple
question, I'm afraid but I shouldnt have any trouble understanding a
description. I tried an inverter schematic from the internet. IT is
basically useless, innefficient, and has resulted in a wound to my
forehead and burned fingers from resistors.
ANy help would be appreciated

 

[Noah]

What would be the easiest way to make a sine wave of about 12-13 volts
RMS, capabale of sourcing a heap of current? My knowledge of designing
circuits is extrememly limited, hence me asking such a simple
question, I'm afraid but I shouldnt have any trouble understanding a
description. I tried an inverter schematic from the internet. IT is
basically useless, innefficient, and has resulted in a wound to my
forehead and burned fingers from resistors.
ANy help would be appreciated

I wouldn't build one. It would cost lots and be bulky. You can buy a
powerful switchmode inverter for less than $150. Dick Smith have them on
special a lot. I got a 300W for $95 a few months ago.

 

[Mike Harding]

How about an 8038 (or the modern equivalent) signal generator
chip driving a power audio amp? Just depends exactly what
you want to do.

I wouldn't build one. It would cost lots and be bulky. You can buy a
powerful switchmode inverter for less than $150. Dick Smith have them on
special a lot. I got a 300W for $95 a few months ago.

The DSE inverters are not true sine wave - they are more
of a triangle.

Mike Harding

 

[Fat Crack Ho]

Wouldn't be very efficient. You'd lose a third of your power accross the class
B amp.

 

[Arpit]

That's great as long as the O/P wants 50Hz only. Just maybe he wants
a variable frequency source. If not, use a @#@#@ transformer.

Yeah, I did want 50hz. Use a transformer? well yeah... thats the
plan.. hence the sine wave to drive it.

 

[Whytech]

Hi Arpit,

I've seen some of your posts and eagerly awaited the next injury

What do you require - exactly? What is the purpose of this 12V sinewave -
what frequencies, RMS currents etc do you need.

apologies if I missed this in earlier posts
-Andrew

Whytech
MSP430 / PIC / AVR tools, SMD prototyping adaptors
Imagecraft MSP430 C compilers
http://www.whytech.com.au

 

[Alan Peake]

What would be the easiest way to make a sine wave of about 12-13 volts
RMS, capabale of sourcing a heap of current?

Have a look on Trace Engineering's web site. They give a reasonable overview
of the fundamentals. I thought of making my own but when I found out what was
involved, I paid the money for a 1700W (4000W for 5 secs) sinewave inverter. I
couldn't make one for what I paid for it - and it's >90% efficient.
Alan