I have a Nikkai 12V to 230V 300W modified sinewave inverter. If possible, I want to modify it to output a purer sinewave (i'm not expecting perfect) similar to what the really expensive pure sinewave inverters produce.
After spending ages searching Google about how to modify an inverter like mine to smooth the output, I found this page: http://bobmay.astronomy.net/misc/drivcorr.htm
I've seen schematics for wien bridge oscillators that produce pure sinewaves with very low distortion and also sinewave generators using 555 timers.
If it's possible, i'd probably use a wien bridge oscillator design as that produces a much smoother wave compared to a 555 and connect the output to the appropriate place on the inverters PCB.
I also remember reading in a forum somewhere about whether adding a mains filter circuit (like on this page: http://www.conformity.com/artman/pu...inter_200.shtml) would improve the output.
Any advice would be appreciated.
Thanks for your time,
Simon
After spending ages searching Google about how to modify an inverter like mine to smooth the output, I found this page: http://bobmay.astronomy.net/misc/drivcorr.htm
I've seen schematics for wien bridge oscillators that produce pure sinewaves with very low distortion and also sinewave generators using 555 timers.
If it's possible, i'd probably use a wien bridge oscillator design as that produces a much smoother wave compared to a 555 and connect the output to the appropriate place on the inverters PCB.
I also remember reading in a forum somewhere about whether adding a mains filter circuit (like on this page: http://www.conformity.com/artman/pu...inter_200.shtml) would improve the output.
Any advice would be appreciated.
Thanks for your time,
Simon