Hello All,
I have currently breadboarded this design with the following parameters.
Parameters
- Triangle carrier 115kHz
- Unmodulated signal 60Hz
- H-Bridge Voltage 30Vdc
I have successfully been able to create the Tri-Level pwm on the output of my H-Bridge circuit and recover the 60Hz sine wave buy LC ( 150uH, 1uF )filtering both output lines. The problem that I am having is that the output sine wave is only 10.5Vac. I think that this is happening because I am using a Tri-Level Pwm and I am only getting half the H-Bridge voltage. If I switch the the Pwm to Bi-Level will my output sine wave increase to 21Vac.
Regards,