Load control system having an overload protection circuit

Details Load control system having an overload protection circuit Load control system having an overload protection circuit

H - Electricity

03

K

H03K 17/082 (2006.01) H03K 17/08 (2006.01)

Patent

CA 2374381

A load control circuit (36) having an overload circuit capable of protecting a switching element (26) from overload conditions over a wide range of operating conditions. The overload circuit limits the maximum average power dissipation of the switching element (26) in accordance with a comparison of an average voltage across the switching element over a half-cycle and a variable threshold. The variable threshold is determined based on an ON-state resistance of the switching element (26) and the environment in which the switching elements are operating. The variable threshold accounts for the squared term (V2 or I2) in determining power dissipation and allows power to be determined based on average voltage.

L'invention concerne un circuit de commande d'une charge (36) doté d'un circuit de protection contre la surcharge destiné à protéger un élément commutateur (26) d'une surcharge dans une plage importante de conditions de fonctionnement. Le circuit anti-surcharge circonscrit la dissipation de puissance moyenne maximale de l'élément commutateur (26) conformément aux résultats de la comparaison effectuée entre la tension moyenne circulant dans l'élément commutateur pendant un demi-cycle et un seuil variable. Ce seuil est fonction de la résistance de l'état <= en marche >= de l'élément commutateur (26) et l'environnement dans lequel ces éléments commutateurs fonctionnent. Le seuil variable représente le terme au carré (V2 ou I2) qui détermine la dissipation de puissance et permet à celle-ci d'être définie sur la base d'une tension moyenne.

Affiliated with

Also associated with

Rating

Load control system having an overload protection circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Load control system having an overload protection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load control system having an overload protection circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1952045