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1. WO2008048980 - SUPPLY POWER CONTROL WITH SOFT START

Publication Number WO/2008/048980
Publication Date 24.04.2008
International Application No. PCT/US2007/081563
International Filing Date 16.10.2007
IPC
G06F 1/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/-G06F13/82
CPC
G05F 1/56
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
1Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
10Regulating voltage or current
46wherein the variable actually regulated by the final control device is dc
56using semiconductor devices in series with the load as final control devices
Y10S 323/901
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
323Electricity: power supply or regulation systems
901Starting circuits
Y10S 323/908
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
323Electricity: power supply or regulation systems
908Inrush current limiters
Applicants
  • ADVANCED ANALOGIC TECHNOLOGIES, INC. [US]/[US] (AllExceptUS)
  • SO, John [US]/[US] (UsOnly)
  • WONG, David Yen Wai [US]/[US] (UsOnly)
Inventors
  • SO, John
  • WONG, David Yen Wai
Agents
  • SOCKOL, Marc, A.
Priority Data
11/749,71416.05.2007US
60/853,28221.10.2006US
60/912,92019.04.2007US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SUPPLY POWER CONTROL WITH SOFT START
(FR) CONTRÔLE D'ALIMENTATION ÉLECTRIQUE AVEC DÉMARRAGE DOUX
Abstract
(EN)
Charge storage devices (e.g., batteries or supcrcapacitors) need to be charged from time to time. In an apparatus, to protect a charge storage device as well as the supply used to charge it, the apparatus typically includes power loop control circuitry. One approach to implementing the power loop control employs a temperature sensor in combination with soft start circuitry in order to protect the circuitry from a rapidly increasing temperature when charge current increases. The soft start circuitry allows for controlled step-wise increase and regulation of the current. The approach preferably allows for selecting the number and resolution of such incremental steps. Various embodiments of the invention include devices and methods for controlling power and may take into account temperature in step-wise regulation of the charge current.
(FR)
L'invention concerne des dispositifs de stockage de charge (par exemple des batteries ou des supercondensateurs) ; de tels dispositifs doivent être périodiquement rechargés. Dans le cas d'un appareil destiné à protéger un dispositif de stockage de charge ainsi que l'alimentation utilisée pour le recharger, l'appareil comprend typiquement des circuits de contrôle de boucle de puissance. Une approche pour mettre en œuvre le contrôle de boucle de puissance utilise un capteur de température en combinaison avec des circuits de démarrage doux afin de protéger les circuits de l'augmentation rapide de la température lorsque le courant de charge augmente. Les circuits de démarrage doux permettent de contrôler l'augmentation étagée du courant, et de réguler ce dernier. Cette approche permet de préférence de choisir le nombre et la résolution de telles étapes incrémentielles. Divers modes de réalisation de l'invention comprennent des dispositifs et des procédés pour contrôler la puissance, et peuvent prendre en compte la température dans la régulation étagée du courant de charge.
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