Voltage surge and overvoltage protection

H - Electricity – 02 – H

Patent

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Details

H02H 3/22 (2006.01) H02H 9/04 (2006.01)

Patent

CA 2683429

Disclosed are various embodiments of voltage protectors that include a first voltage clamping device (109) configured to clamp a voltage of an input power (V) applied to an electrical load (103), and a second voltage clamping device (113) configured to clamp the voltage applied to the electrical load (103). A series inductance (L) separates the first and second voltage clamping devices (109, 113). Also, a switching element (R1) is employed to selectively establish a direct coupling of the input power (V) to the electrical load (103), where a circuit is employed to control the operation of the switching element (R1).

Divers modes de réalisation de l'invention concernent des systèmes de protection contre les surtensions comprenant un premier dispositif de régulation de tension (109) qui régule la tension d'une puissance d'entrée (V) appliquée à une charge électrique (103), et un second dispositif de régulation de tension (113) qui régule la tension appliquée à ladite charge électrique (103). Une inductance série (L) sépare les premier et second dispositifs de régulation de tension (109, 113). De plus, un élément de commutation (R1) commandé par un circuit permet d'établir sélectivement un couplage direct entre la puissance d'entrée (V) et la charge électrique (103).

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