Improved power supply system for a packet-switched radio...

H - Electricity – 02 – M

Patent

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Details

H02M 3/07 (2006.01) H04B 1/04 (2006.01) H04B 1/16 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2247102

An improved power supply system involves load-leveling the large transient currents drawn by a high power, low duty-cycle load application circuit by means of a high performance capacitive charge storage device, such as a super-capacitor or a network of super-capacitors. The improved power supply system allows the high power load application circuit to be driven by a limited energy power source, such as a battery or the power supplied to a PCMCIA slot by a host computer. When the input voltage source is a battery, the improved power supply system allows for a substantial increase in the battery's operational life. The inventive system is particularly useful for managing power supply requirements for miniaturized wireless transmission systems, such as two-way pagers or radio modems, which employ low duty-cycle packet-switched RF transmitters.

La présente invention a pour objet un bloc d'alimentation amélioré permettant le nivellement d'importants courants transitoires provenant d'un circuit haute puissance et de faible cycle d'utilisation par l'intermédiaire d'un dispositif de stockage de charge capacitive de haute performance, tel un super-condensateur ou un réseau de super-condensateurs. Le bloc d'alimentation amélioré permet la mise en oeuvre d'un circuit haute puissance alimenté par une source de puissance limitée, telle une pile, ou par établissement d'une connexion dans la fente PCMCIA d'un ordinateur hôte. Lorsqu'une pile sert de source de tension d'alimentation, le bloc d'alimentation amélioré produit une importante augmentation de la durée de vie de la pile. Le système visé par les présentes est particulièrement utile aux fins de gestion des besoins énergétiques associés à des systèmes de transmission sans fil miniaturisés, tels les appareils de radiocommunication bilatérale ou les modems radio, qui utilisent des radioémetteurs de faible cycle d'utilisation à transmission par paquets.

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