abhishek.2138
Full Member level 2
I am working on Single phase AC motor control project.
I have generated SPWM using opamps. Sine wave of 50 Hz & Triangular wave of 15 KHz modulated by TLC3702 Comparator.
Time delay between upper & lower MOSFET pair is of 200 nS created by NOT gates. MOSFET used are 15N60C3.
When I slowly given the input AC supply to bridge rectifier-filter capacitor, my input fuse blows??
What could be the reason???
Can we start motor(150 watt washing machine motor used) in open loop (without feedback) by just switching the MOSFET H-Bridge by SPWM signals????
H-bridge circuit attached....
Please help...
I have generated SPWM using opamps. Sine wave of 50 Hz & Triangular wave of 15 KHz modulated by TLC3702 Comparator.
Time delay between upper & lower MOSFET pair is of 200 nS created by NOT gates. MOSFET used are 15N60C3.
When I slowly given the input AC supply to bridge rectifier-filter capacitor, my input fuse blows??
What could be the reason???
Can we start motor(150 watt washing machine motor used) in open loop (without feedback) by just switching the MOSFET H-Bridge by SPWM signals????
H-bridge circuit attached....
Please help...
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