Intelligent power supply with staged loading capability

Details Intelligent power supply with staged loading capability Intelligent power supply with staged loading capability

H - Electricity

02

J

H02J 3/14 (2006.01) H02M 3/28 (2006.01) H02M 1/00 (2006.01)

Patent

CA 2241795

A power supply system (20) includes a power distribution circuit (21) and a power converter circuit (22), an input power control circuit (24), a power utilization circuit (26) and a utilization control circuit (28). The power distribution circuit includes some limitation in delivering power to the power converter circuit. The input power control circuit initiates and controls the start-up of the power conversion circuit. The power utilization circuit and the utilization control circuit include a first storage capacitor (96), a first load (98), and a second capacitor (112). A voltage comparator (104) monitors voltage across the second capacitor to determine when the second capacitor is fully charged. A gate (126) receives signals from the voltage comparator and status logic to cause a switch (102) closure when the second capacitor is fully charged. The closing of the switch connects a second load (100) in parallel with the first load.

Un système d'alimentation électrique (20) comporte un circuit de distribution (21) et un circuit de conversion (22), un circuit de commande de puissance à l'entrée (24), un circuit d'utilisation de puissance (26) et un circuit de commande d'utilisation (28). Le circuit de distribution connaît quelque restriction dans l'alimentation du circuit de conversion. Le circuit de commande de puissance à l'entrée amorce et régit le démarrage du circuit de conversion. Les circuits d'utilisation et de commande d'utilisation sont pourvus d'un premier condensateur de stockage (96), d'une première charge (98) et d'un second condensateur (112). Un comparateur de tension (104) surveille la tension aux bornes du second condensateur afin de déterminer à quel moment le second condensateur est à pleine charge. Une passerelle (126) reçoit des signaux provenant du comparateur de tension et d'une logique d'état afin de fermer le commutateur (102) lorsque le second condensateur est à pleine charge. La fermeture du commutateur met en connexion une seconde charge (100) en parallèle à la première.

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