Electromechanical transduction of plasma pulses
OwnerPaulo N. Correa, Alexandra N. Correainventors
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OwnerPaulo N. Correa, Alexandra N. Correainventors
Estimating the term…
A direct current power transducer for driving alternating current devices utilizes a discharge tube connected across a current source, the construction of the tube and characteristics of the source being such as to maintain endogenous pulsed abnormal gas discharge within the tube. The tube is capacitatively coupled to an external load including an alternating current device, typically an electric motor. Electric motors of the asynchronous induction or synchronous types are particularly suitable, but other alternating current devices may be used. By adjustments to the current source, the capacitance in parallel with the discharge tube, and connections to auxiliary electrodes, the pulse repetition frequency of the discharge may be adjusted, thus allowing variable speed control of types of alternating current motor not normally amenable to such control.
A direct current power transducer comprising a cold cathode vacuum discharge tube having an anode and a cathode and capable of autoelectronic emissions under abnormal glow discharge conditions, which emissions have an extinction potential substantially higher than the sustaining potential of a vacuum arc discharge in the same tube, and an external circuit including a direct current source connected between the anode and the cathode, the external circuit being capable of developing a potential sufficient to initiate said autoelectronic emissions, and an impedance sufficient that, as the autoelectronic emissions are established, potential between the anode and the cathode collapses below said extinction potential before a vacuum arc is established, thus setting up an endogenous cyclical pulsed abnormal glow discharge, wherein the external circuit includes a reactive arm in parallel with the discharge tube and presenting a capacitance across the tube, said reactive arm further including an electromagnetic device providing an energy output and dependent on the application of cyclical power pulses for its operation.
Dependencies are inferred from the claim text.