EP 1465037 A2 20041006 - A method and system for alternating current regulation
Title (en)
A method and system for alternating current regulation
Title (de)
Verfahren und Vorrichtung zur Wechselstromregelung
Title (fr)
Procédé et système de régulation de courant alternatif
Publication
Application
Priority
- EP 99967731 A 19991229
- US 11419598 P 19981230
Abstract (en)
Circuitry and methods for regulating alternating current regulation uses energy storage and release principles to boost or buck voltage to permit regulated ac operation with parallel and series bi-directional switch elements (12) and (13) operated at either variable duty cycles or frequencies to accommodate bipolar ac operation. Each bi-directional switch element may include a diode bridge (8) or (10) and directionally limited switches such as semiconductor switches. The system can be used to regulate ac even during sub-cycle dips, can be used to simulate controlled dips, can be used to correct power factor for loads, and can be applied in multiphase operations. <IMAGE>
IPC 1-7
IPC 8 full level
G05F 1/12 (2006.01)
CPC (source: EP)
G05F 1/12 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04076919 A 19991229