Patent ID: 11875971
Assignee: EAGLE HARBOR TECHNOLOGIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A plasma system comprising:
a plasma chamber;
an electrode disposed within the plasma camber;
a circuit disposed outside the plasma chamber comprising:
a high voltage storage capacitor;
a switching circuit coupled with the storage capacitator, the switching circuit outputs waveforms with voltages greater than 1 kV and with a frequencies greater than 1 kHz, the switching circuit comprising a plurality of switches arranged in a half-bridge or a full-bridge configuration;
a transformer having a primary side and a secondary side, the switching circuit electrically coupled with the primary side of the transformer; and
an energy recovery circuit electrically coupled with the secondary side of the transformer and the storage capacitor, the energy recovery circuit comprising:
an energy recovery inductor electrically coupled with the high voltage power supply having an inductance greater than 50 μH; and
a diode disposed in series with the energy recovery inductor and arranged to restrict current flowing from the high voltage power supply through the energy recovery inductor to the electrode.