How Frequency Conversion Works
To convert 50Hz to 60Hz, we use a two-stage power conversion process that ensures the output voltage is precisely regulated and isolated from noise and disruptions on the input AC power source.
The input AC power is first processed through an AC-to-DC power converter that keeps the input power factor as close to one as possible. This reduces current draw on the input source, with the added benefit of reducing carbon emissions from the electric power provider.
The output of the AC-to-DC converter feeds an energy storage bank, which keeps the output load supplied with power even if the input power is momentarily interrupted.
The output of the energy storage bank connects to a DC-to-AC converter (an inverter) that generates a pure sine wave output of 120V 60Hz.
Not shown here, for clarity, are the input and output filters that limit electrical noise, and the input/output protection circuits.
