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:
Sep. 21, 1999
Filed:
Jan. 21, 1997
Melwyn Felix Sequeira, Plantation, FL (US);
Richard Lee Taylor, Cooper City, FL (US);
Mirjana Milosevic-Kvajic, Miami Beach, FL (US);
Jerome Joseph Kathalynas, Pembroke Pines, FL (US);
Coulter International Corp., Miami, FL (US);
Abstract
A power supply apparatus which includes at least one switching power supply disposed in a chassis connected to earth ground and at least one D.C. to D.C. converter whose inputs float with respect to system ground. To reduce transmission of high-frequency electrical switching energy from the switching power supply to the load, the invention contemplates a tuned reactive circuit connected between the system ground and the earth ground. Electrical switching energy is shunted to earth ground by way of bypass capacitors located at various stages of the power supply apparatus. A further aspect of the apparatus contemplates the interposition of low-pass filters between the switching power supply and one or more D.C. to D.C. converters connected to the power supply and/or between the D.C. to D.C. converters and their respective loads to effectively eliminate radiated electromagnetic energy.