EP 1465037 A3 20050112 - 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)
[origin: EP1465037A2] 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)
Citation (search report)
- [X] US 4651265 A 19870317 - STACEY ERIC J [US], et al
- [A] US 3825815 A 19740723 - GYUGYI L, et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04076919 A 19991229