The effort for increasing the output power  of dc to ac inverter is  increasing the DC current and voltage supply at the input of step-up transformer. This condition can be achieved when we done as below:

• Adding circuit switching in parallel manner, ie MOSFETs components are connected in parallel. Output current is proportional to the number of MOSFETs.

• Replacing the step up transformer with the greater in power then before. If a MOSFET is designed for energized 5 Ampere and the number of parallel MOSFET is 2 so the power transformer must  delivered current 10 Ampere at least.

Because of the increasing in current that flows out the circuit will increase the risk of short circuit (or overload) so an automatic circuit breaker is a must. An automatic circuit breaker receives an information about the flowing current from the monitor current block.

Following figure depicts how to increase the inverter output power, (can be applied to inverter diagram)

Figure 1. Tips for increasing inverter output power.

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