Do I need a voltage converter in Barbados?

Yes, the electrical outlets in Barbados are the same as in the United States, both countries use power plugs and electrical outlets of types A and B. However, the voltage and/or frequency used in Barbados is not the same as in the United States, so you may need a voltage converter. Do I need a travel adapter for Barbados?

How to upgrade a low power inverer circuit to a higher power?

The above explained ideas for upgrading a low power inverer circuit to a higher power version can be implemented to any desired level, simply by adding several MOSFETs in parallel. Adding MOSFETs in parallel is actually easier than adding BJT in parallel.

How does a power inverter work?

For the record, a power inverter converts ~ 12V dc--> ~120 AC (normally non-sinusoidal). to increase the power output, the amount of output current the device can source is increased, whereas its output voltage remains the same.

How do inverter topologies work?

All inverter topologies basically incorporate an oscillator frequency which is then amplified using power devices to high current levels before dumping into the step-up transformer for the final voltage boosting procedures.