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1. WO2021046123 - SYSTEM TO PROVIDE AC OR DC POWER TO ELECTRONIC EQUIPMENT

Publication Number WO/2021/046123
Publication Date 11.03.2021
International Application No. PCT/US2020/049058
International Filing Date 02.09.2020
IPC
H02M 1/10 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
10Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
H02M 7/02 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
02Conversion of ac power input into dc power output without possibility of reversal
H02M 7/42 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
H02M 7/66 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
66with possibility of reversal
H02M 3/02 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
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
H02M 3/00 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
3Conversion of dc power input into dc power output
CPC
H02J 9/061
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
9Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
04in which the distribution system is disconnected from the normal source and connected to a standby source
06with automatic change-over ; , e.g. UPS systems
061for DC powered loads
Applicants
  • RAJU, Ravisekhar [US]/[US]
Inventors
  • RAJU, Ravisekhar
Priority Data
62/894,86302.09.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM TO PROVIDE AC OR DC POWER TO ELECTRONIC EQUIPMENT
(FR) SYSTÈME DE FOURNITURE DE PUISSANCE EN COURANT ALTERNATIF OU EN COURANT CONTINU À UN ÉQUIPEMENT ÉLECTRONIQUE
Abstract
(EN)
A system and method is provided to provide power to a load or electronic equipment which includes a multi-pole switch that connects the input of the load or electronic equipment to a first AC source or a DC source or an optional second AC source created from the DC source through a DC-AC converter. The connection to the DC source is either direct or through a DC-DC converter that provides voltage adjustment or isolation. A controller changes the position of the switch in response to the sensing of the presence and magnitude of the sources or in response to an external command to select a preferred source. The controller further activates or deactivates the DC-DC and DC-AC converters to improve system efficiency.
(FR)
L'invention concerne un système et un procédé de fourniture de puissance à une charge ou à un équipement électronique qui comprend un commutateur multipolaire qui connecte l'entrée de la charge ou de l'équipement électronique à une première source de CA ou à une source de CC ou à une seconde source de CA facultative créée à partir de la source de CC par l'intermédiaire d'un convertisseur CC-CA. La connexion à la source de CC est soit directe, soit par l'intermédiaire d'un convertisseur CC-CC qui fournit un ajustement ou une isolation de tension. Un dispositif de commande modifie la position du commutateur en réponse à la détection de la présence et de l'amplitude des sources ou en réponse à une instruction externe pour sélectionner une source préférée. Le dispositif de commande active ou désactive en outre les convertisseurs CC-CC et CC-CA pour améliorer l'efficacité du système.
Latest bibliographic data on file with the International Bureau