Equipment for the generation of stabilized high direct voltage, particularly for use in combination with a non-polluting muffler
AssigneeMagneTek, Inc.
InventorAntonio Canova
Life of this patent
Estimating the term…
Abstract
Equipment for the generation of a stabilized high direct voltage is described, and includes: a step-up transformer (2) whose primary is supplied with a direct voltage and which is designed in such a way as to have dispersed inductances and parasitic capacitances which cause a resonance effect on the opening of the primary; a rectifying circuit (3) to rectify the voltage at the terminals of the secondary winding of the step-up transformer (2); a switch (11) which, when in the closed condition, connects the primary winding of the step-up transformer (2) to ground; and circuits (6,7,8,9) for controlling the opening and closing of the switch (11).
Claims12
A device for generation of a stabilized high direct voltage, the device comprising:
- a step-up transformer with primary leads connectable to a direct voltage, said step-up transformer having dispersed inductances and parasitic capacitances causing a resonance effect on opening of one of said primary leads of said set-up transformer;
- a rectifier means connected to secondary leads of said step-up transformer and for rectifying voltage from said secondary leads to an output voltage;
- switching means for connecting and disconnecting one of said one primary leads of said step-up transformer to ground through a resistor;
- reference voltage means for providing a reference voltage;
- error amplifier means for comparing said reference voltage with said output voltage of said rectifier means and generating an output error voltage signal proportional to a difference between said reference voltage and said output voltage;
- comparator means for comparing said output error voltage signal with a resistor voltage across said resistor of said switching means;
- control means connected to said comparator means and for controlling said connecting and disconnecting of said switch means, said control means disconnecting said switch means for a predetermined fixed time interval when an output level of said comparator means changes.
A device in accordance with claim 14, further comprising:
- a DC/DC converter connected between said primary leads of said step-up transformer and the direct voltage source;
- voltage multiplier means for multiplying said rectified voltage to form said output voltage.
A method for generation of a stabilized high direct voltage, the device comprising:
- providing a step-up transformer;
- supplying a DC voltage to primary leads of said step-up transformer;
- rectifying a secondary voltage across secondary leads of said step-up transformer;
- generating an output voltage signal proportional to said rectified voltage;
- comparing said output voltage signal with a reference voltage and generating an error voltage signal proportional to a difference between said reference voltage and said output voltage signal;
- providing a switch and a resistor between one of said primary leads of the step-up transformer and ground;
- comparing said error voltage signal with a resistor voltage across said resistor when said switch is closed;
- opening said switch for a predetermined and fixed time interval when said resistor voltage is equal to said error voltage signal.
Dependencies are inferred from the claim text.