초록 ▼

An apparatus and method for controlling the output of an oxygen concentrator wherein an oxygen concentrator indicator is comprised of an oxygen sensor monitor and circuit board which receives a gas sample from the concentrator, the oxygen concentrator indicator circuit board converts the concentrati

An apparatus and method for controlling the output of an oxygen concentrator wherein an oxygen concentrator indicator is comprised of an oxygen sensor monitor and circuit board which receives a gas sample from the concentrator, the oxygen concentrator indicator circuit board converts the concentration of oxygen to a DC voltage range from 0 to 1 volt corresponding to 0% to 100% oxygen. A plurality of set-point amplifiers accept the voltage and feed the voltage to a logic block where the voltage is analyzed to insure that only one of a plurality of solid state relays or switches is energized at a time. A plurality of taps on an AC motor winding are selectively energized by the solid state relays to drive the oxygen concentrator at a pre-determined rate in response to the concentration of oxygen generated by the concentrator. In addition, where other types of motors are employed, such as a linear motor, similar type controls may be provided for regulating the actuation of the linear motor for generating reciprocal motion for operations of the oxygen concentrator.

대표청구항 ▼

[ Having thus described the invention, what is claimed and desired to be secured by Letters Patent is:] [1.] A method of controlling the concentration of oxygen from an oxygen concentrator driven by a motor, comprising the steps of:determining the concentration of oxygen in a sample produced by such

[ Having thus described the invention, what is claimed and desired to be secured by Letters Patent is:] [1.] A method of controlling the concentration of oxygen from an oxygen concentrator driven by a motor, comprising the steps of:determining the concentration of oxygen in a sample produced by such oxygen concentrator;converting said oxygen concentration to a low D.C. voltage which corresponds to said oxygen concentration;conducting said voltage to a plurality of set-point amplifier;amplifying said voltage;conducting said voltage as amplified to a logic block;analyzing said voltage;determining a rate of operations per minute for said motor base voltage;energizing one of a plurality of switching means based upon said rate of operations per minute of said motor; andenergizing an appropriate control means on the motor through said switching means based upon the rate of operation of said motor per minute.