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. 08, 2002
Filed:
Jun. 01, 2001
Philippe Fischer, Anglikon, CH;
John Daniel, Apex, NC (US);
Philippe Maibach, Brugg, CH;
Madhav Manjrekar, New Berlin, WI (US);
ABB Schweiz AG, Baden, CH;
Abstract
A converter circuit is specified for voltage maintenance in an electrical AC supply network ( ), with the electrical AC supply network ( ) having an associated voltage source (UR; US; UT) for each phase (R; S; T) for supplying an electrical load ( ), with the converter circuit having a respective inverter ( ) for each phase (R; S; T), which inverter ( ) is connected on the DC side via an energy-storage capacitor ( ) to a supply device ( ). On the AC side, each inverter ( ) is connected in series between the associated voltage source (UR; US; UT) and the electrical load ( ) in the respective phase (R; S; T), and in that, on the AC side, the supply device ( ) is connected to at least two phases (R; S; T) between the associated voltage sources (UR; US; UT) and the respective inverters ( ).