SPWM generator with Op-am

115

00:51:58

The circuit start's in the buttom op-am and it finsh in the left top op-am... The fisrt op-am it's an integer that makes a triangule wave, then a sumator helps to low the offset of the triangule wave 8 volts down. Then a comparator between the triangule wave and a sinuidal wave creates the SPWM. The frecuency of the triangule wave has to be higher than the siniudal wave. 

**Note: The resistor ganancy of the sumator start's in 10kOhms and then we can increase to 200kOhm to generate the SPWM**

published 8 years ago

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