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1. WO2021080982 - CLOSED LOOP HEADROOM MANAGEMENT FOR BATTERY CHARGING

Publication Number WO/2021/080982
Publication Date 29.04.2021
International Application No. PCT/US2020/056488
International Filing Date 20.10.2020
IPC
H02J 7/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
G05F 1/575 2006.01
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
575characterised by the feedback circuit
H04R 1/10 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
10Earpieces; Attachments therefor
H02M 1/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
CPC
G06F 1/266
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/00G06F13/00 and G06F21/00
26Power supply means, e.g. regulation thereof
266Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
G06F 1/305
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/00G06F13/00 and G06F21/00
26Power supply means, e.g. regulation thereof
30Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
305in the event of power-supply fluctuations
H02J 2310/22
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
2310The network for supplying or distributing electric power characterised by its spatial reach or by the load
10The network having a local or delimited stationary reach
20The network being internal to a load
22The load being a portable electronic device
H02J 7/00034
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
00032characterised by data exchange
00034Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
H02J 7/0013
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
0013acting upon several batteries simultaneously or sequentially
H02J 7/0068
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
0068Battery or charger load switching, e.g. concurrent charging and load supply
Applicants
  • APPLE INC. [US]/[US]
Inventors
  • BANERJEE, Soham
  • SRINIVASAN, Jeyakkrishanan, Chengleput
  • KALINICHEV, Kirill
  • DE LIMA FERNANDES, Antonio
  • BRINSFIELD, Jason
  • IONASCU, Mary-Ann
Agents
  • ALLEN, Billy, C., III
Priority Data
16/664,27425.10.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CLOSED LOOP HEADROOM MANAGEMENT FOR BATTERY CHARGING
(FR) GESTION DE MARGE DE SÉCURITÉ EN BOUCLE FERMÉE POUR CHARGE DE BATTERIE
Abstract
(EN)
An electronic system can include a charged system and a charging system. The charged system can include a charger and a battery configured to be charged thereby. The charger may be configured to receive power from a charging system that includes a power converter configured to supply power to the charger and a controller configured to control the power converter. The controller may be configured to receive feedback information from the charged system, including one or more voltages. The controller may be further configured to determine an output voltage compensation value for the power converter as a function of the feedback information and to set an output voltage of the power converter as a function of the compensation value. The compensation value and output voltage may be selected to maintain a preselected headroom between a battery charging target voltage of the charger and a voltage supplied to the charger.
(FR)
La présente invention concerne un système électronique pouvant comprendre un système chargé et un système de charge. Le système chargé peut comprendre un chargeur et une batterie configurée pour être chargée par celui-ci. Le chargeur peut être configuré pour recevoir de l'énergie provenant d'un système de charge qui comprend un convertisseur de puissance configuré pour fournir de l'énergie au chargeur et un dispositif de commande configuré pour commander le convertisseur de puissance. Le dispositif de commande peut être configuré pour recevoir des informations de rétroaction provenant du système chargé, comprenant une ou plusieurs tensions. Le dispositif de commande peut en outre être configuré pour déterminer une valeur de compensation de tension de sortie pour le convertisseur de puissance en tant que fonction des informations de rétroaction et pour régler une tension de sortie du convertisseur de puissance en fonction de la valeur de compensation. La valeur de compensation et la tension de sortie peuvent être sélectionnées pour maintenir une marge présélectionnée entre une tension cible de charge de batterie du chargeur et une tension fournie au chargeur.
Also published as
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