A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 1/36 (2006.01) A61N 1/08 (2006.01) A61N 1/378 (2006.01)
Patent
CA 2342873
This invention is a device for controlling the discharge of a battery (B1) supplying an intermittent load, such as a nerve stimulation device. The device includes a controller (15) which operates a switched inductor (L1) to feed a capacitor (C1) with numerous small pulses from the battery, thereby building up the charge, voltage on the capacitor, and occasionally discharging the capacitor to a load. The capacitor discharge is at a current higher than that of the small pulses from the battery, so the battery is drained at small instantaneous discharge rates compared to the high instantaneous discharge current from the capacitor.
L'invention concerne un dispositif permettant de contrôler la décharge d'un accumulateur (B1) à alimentation de charge intermittente, du type dispositif de stimulation nerveuse. Le dispositif considéré comporte une unité de commande (15) qui actionne une bobine d'inductance commutée (L1), de manière à alimenter un condensateur (C1), sous la forme de nombreuses petites impulsions provenant de l'accumulateur, ce qui permet d'augmenter la charge et la tension dans l'accumulateur, et occasionnellement de décharger le condensateur pour une alimentation de charge. La décharge du condensateur s'effectue à un courant supérieur aux faibles impulsions émanant de l'accumulateur, si bien que l'accumulateur est vidé à des niveaux de décharge instantanée peu élevés par rapport au courant de décharge instantanée élevé en provenance du condensateur.
Grey Thomas
Sturman Andy
Relief Band Medical Technology Llc
Smart & Biggar
Woodside Biomedical Inc.
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