US Patent No. 11,071,193

DEVICE FOR PRODUCING A NON-THERMAL ATMOSPHERIC PRESSURE PLASMA AND ACTIVE SPACE COMPRISING SUCH A DEVICE


Patent No. 11,071,193
Issue Date July 20, 2021
Title Device For Producing A Non-thermal Atmospheric Pressure Plasma And Active Space Comprising Such A Device
Inventorship Johann Pichler, Breitenau am Hochlantsch (AT)
Markus Puff, Graz (AT)
Pavol Kudela, Deutschlandsberg (AT)
Stefan Nettesheim, Regensburg (DE)
Dariusz Korzec, Wenzenbach (DE)
Dominik Burger, Alteglofsheim (DE)
Assignee RELYON PLASMA GMBH, Regensburg (DE) TDK ELECTRONICS AG, Munich (DE)

Claim of US Patent No. 11,071,193


1. A device comprising:a first housing, in which a piezoelectric transformer is arranged; and
a second housing, in which a control circuit is arranged, wherein the control circuit is configured to apply an input voltage to the piezoelectric transformer,
wherein the control circuit comprises a time circuit,
wherein the device is configured to operate in a pulsed mode in which time intervals in which the piezoelectric transformer is activated and pause intervals in which the piezoelectric transformer is deactivated alternate,
wherein the piezoelectric transformer is activated in the time intervals based on the time circuit without taking into account other operating parameters of the piezoelectric transformer,
wherein the piezoelectric transformer is deactivated in the pause intervals based on the time circuit,
wherein a length of a pause interval is determined by a purely time-based control system, and
wherein the device is configured to produce a non-thermal atmospheric pressure plasma.