Hello friends this post is about "induction heating" project on which i was working in final year.
I have already post about
PWM pulses generation and
MOSFET triggering with microcontroller which are two important aspects I found out during my final year project.
Here is the Pwm scheme which i have used to generate pulses.
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| Triangular wave and two reference levels |
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- First of all I generated a triangular wave (inside microcontroller) this is called Phase correct PWM in AVR microcontroller.
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| Pwm pulses with guard band |
- Then I generated two levels with which I want to compare my triangular wave... which leads to the following type of pulses with guard band.
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| Gate pulse logic |
- here is the logic which i used to generate gate pulse.
- these pulses are then applied to MOSFET as discussed in this post via opto-couplers to this bridge configuration
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| Inverter bridge |
- with inductor and capacitor series resonant circuit as load I got this current output waveform from the load.
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| Current waveforms of inductor |
Questions and suggestions are always welcomed in comment box.......so feel free to comment.
