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Hi all,
I am facing another problem, that is sending the pulses from micro controller to the mosfet driver as the sinusoidal pulses from pic micro controller to the driver is very low and hence it is difficult to drive the ir2120. I could use Tc 427 but it is not available here. Hope to get your suggestions to overcome the problem.
Hope to post the schematics soon. Thanks mincing for your kind suggestion.
Thanks.
Last edited by tahmid; - 13th August 2008 at 17:59.
The strongest man in the world is one, who stands alone for achieving something good.
পৃথিবীতে সেই সবচেয়ে শক্তিশালী ব্যক্তি, যে ভাল কিছু অর্জনের জন্য একাই নিরন্তর চেষ্টা চালিয়ে যায়।
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Hi mincing,
What is your progress? Can you apprise me regarding the sine/square wave smps inverters made in India? Do they use microcontroller?
I have solved my problems and tested my circuit and got clean/pure sine wave output at 50khz freq. I have tested 2 types of inverter- single stage smps modified sine wave inverter and dual stage pure sine wave inverter(software pwm-ed). For sine wave generation, I have used 8 pin pic 12F675. Hope to help you and others in this respect.
Thanks.
The strongest man in the world is one, who stands alone for achieving something good.
পৃথিবীতে সেই সবচেয়ে শক্তিশালী ব্যক্তি, যে ভাল কিছু অর্জনের জন্য একাই নিরন্তর চেষ্টা চালিয়ে যায়।
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They use microc controllers .And most companies that supply sine wave inverters use dsp chips.Originally Posted by tahmid
However looking forward to your support and cooperation all through.
Thanks!
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Hai Tahmid,
You can use simple transistor ampli. ckts for boosting up the signals from pic to suit the levels(say 10V) of IR 2110 and feed.
This will solve the problem of low level signals.
Thanks!
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