Sine wave Inverter with closed-loop load regulation

[irfan42]

pure sine wave inverter

Dear All,
I have made sine wave inverter that is working fine but when I put Load on it, it's output voltage decreases, then I increase the amplitude of the sine wave from the bubba oscillator then output voltage increases, Now my question is that how can I do this automatically through a comparator IC or any other technique please tell me I will be wait for your Reply.


Regards,

Irfan Hussain

IBN KHALDUN SYSTEMS
65-C, 2nd Floor
Defence Commercial Area 'A'
DHA, Phase-II
Karachi-75500
Pakistan.
Email: irfan@ibnkhaldun.com.pk
Website: www.ibnkhaldun.com.pk
Cell: +92 (0)344 3051331

 

[Audioguru]

sine wave bubba

A FET is used in a Wien Bridge sine-wave oscillator to make its output level constant. The FET is an automatic level control.

Is your inverter using a sine-wave driving an amplifier? Then it wastes a lot of power making heat.

A modified sine-wave inverter (actually it is a modified square-wave) and a PWM pure sine-wave inverter rectifies its output and uses the DC to change the width of its pulses For voltage control.

 

[Raza]

Re: Pure Sine wave Inverter

Hi Irfan,
Please contact me on my mailing address

 

[jeffreywong]

Can you show me how to change the output sinewave inverter to DC form to control the dutycycle or output voltage? I have try using fullbridge rectifier but fail to do it. Do you have anyidea about it?



Thanks...