Back to results
US 7,833,322 B2Granted
Air treatment apparatus having a voltage control device responsive to current sensing
AssigneeSharper Image Acquisition LLC
InventorsIgor Y. Botvinnik, Charles E. Taylor
Life of this patent
Estimating the term…
Abstract
An air treatment apparatus that includes an electrode assembly, a voltage supply, a current sensing device operably coupled to the electrode assembly, and a voltage control device coupled to the current sensing device and the voltage supply. The voltage control device is configured to regulate the level of voltage based on the level of current flowing through the current sensing device to maintain the voltage and current in the electrode assembly within designated ranges.
Claims14
An air treatment apparatus, comprising:
- an electrode assembly comprising a plurality of emitter and collector electrodes;
- a voltage source coupled to the emitter and collector electrodes for establishing an electric field between the emitter and collector electrodes for producing ozone;
- a current sensing device coupled to the electrode assembly for measuring current flowing through the electrode assembly;
- a voltage control device coupled to the current sensing device, the voltage control device comprising:
- a current input port configured to receive at least one current signal from the current sensing device;
- a control output port configured to send at least one voltage control signal to the voltage source in response to the received current signal;
- and
- a control unit operably coupled to the current input port and the control output port, wherein the control unit is configured to:
- determine a current value from the received current signal;
- determine a designated ozone production range out of a plurality of ozone production ranges of the air treatment apparatus based on the current value;
- and
- provide an appropriate voltage control signal for adjusting the voltage source so as to regulate ozone production by the air treatment apparatus within the designated range.
9 more elements
Dependencies are inferred from the claim text.