Patent ID: 9401605
Filing Date: 2016-07-26
CPC Classification: H02J,Y02E

Claim Text:
1. A method comprising: supplying a higher voltage waveform from a higher power electrical bus to a lower power electrical bus through a transformer to form a lower power voltage; generating an in-phase current from the lower power voltage using a current transformer; sensing on the lower power electrical bus, wherein the lower power electrical bus provides power to a substantially resistive load, a deviation from a sinusoidal voltage waveform in the lower power voltage waveform supplied from the higher power electrical bus; generating an in-phase correction current in an active filter using the in-phase current from the current transformer; supplying the in-phase correction current opposing an in-phase current on the lower power electrical bus to adjust the deviation in the voltage on the lower power bus to a substantially sinusoidal voltage waveform thereby proving a cleaned-up lower power voltage on the lower power electrical bus; stepping up the cleaned-up lower power voltage to a highest voltage using a transformer; supplying the highest voltage to a load; and filtering the correction current to substantially attenuate the correction current from propagating through the filter from the lower power electrical bus to the higher power electrical bus.