I have created an Inverter system with 48V DC in the input.
The DC Voltage is stepped up using a Full Bridge DC-DC converter to 360V.
Then, this voltage is fed to a H-Bridge Inverter run by an 8KHz SPWM (generated in Arduino Nano). The desired Output of the inverter is 230V (RMS) AC.
I'm using a RLC network to filter out the hi frequency components. Additional Loads are attached to parallel RC branch of the filter. Values are L=26mH, C=2.2uF, R=100ohm.
Currently I'm using 100W light bulbs as loads. When I use as single light bulb the output voltage is around 230V. And when I use two light bulbs the voltage drops to 180V.
I'm not submitting any schematics as of now. Just want to know your general opinion. What could be the cause of this? What are the mechanism to increase voltage.
The DC Voltage is stepped up using a Full Bridge DC-DC converter to 360V.
Then, this voltage is fed to a H-Bridge Inverter run by an 8KHz SPWM (generated in Arduino Nano). The desired Output of the inverter is 230V (RMS) AC.
I'm using a RLC network to filter out the hi frequency components. Additional Loads are attached to parallel RC branch of the filter. Values are L=26mH, C=2.2uF, R=100ohm.
Currently I'm using 100W light bulbs as loads. When I use as single light bulb the output voltage is around 230V. And when I use two light bulbs the voltage drops to 180V.
I'm not submitting any schematics as of now. Just want to know your general opinion. What could be the cause of this? What are the mechanism to increase voltage.