active power factor correctionの例文

例文

1. Active power factor correction can be single-stage or multi-stage.
2. An active power factor correction circuit at the input would generally reduce the harmonic currents further and maintain the power factor closer to unity.
3. Using active rectification to implement AC / DC conversion allows a design to undergo further improvements ( with more complexity ) to achieve an active power factor correction, which forces the current waveform of the AC source to follow the voltage waveform, eliminating reactive currents and allowing the total system to achieve greater efficiency.
4. Current Energy Star guidelines for computers call for a power factor of e " 0.9 at 100 % of rated output in the U . S . Environmental Protection Agency, PCs with internal power supplies will require the use of active power factor correction to meet the ENERGY STAR 5.0 Program Requirements for Computers.