The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 1993
Filed:
Mar. 25, 1992
Guglielmo Liberati, Viareggio, IT;
Enel S.p.A., Rome, IT;
Abstract
A high-frequency, switching-type protected power supply, in particular for electrostatic precipitators, characterized by the fact of comprising a regulated power supply system for providing direct voltage adjusted at a desired value and at a relatively low voltage; a high efficiency, high-frequency switching system driving a step-up voltage transformer until reaching substantially the desired operating voltage of the precipitator, the secondary circuit of which directly feeds, by means of a rectifier group, the electrostatic precipitator. The high-frequency switching system is controlled in its operation in response to abnormalities indicating an incipient discharge between the electrodes of the electrostatic precipitator to modify the operating conditions in order to avoid the formation of disruptive discharges with consequent possible damage to the entire power supply and/or electrostatic precipitator.