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1. WO1999056383 - COMBINED CAPACITIVE UP/DOWN CONVERTER

Publication Number WO/1999/056383
Publication Date 04.11.1999
International Application No. PCT/IB1999/000628
International Filing Date 12.04.1999
IPC
H02M 3/07 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
04by static converters
06using resistors or capacitors, e.g. potential divider
07using capacitors charged and discharged alternately by semiconductor devices with control electrode
CPC
H02M 2003/072
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
04by static converters
06using resistors or capacitors, e.g. potential divider
07using capacitors charged and discharged alternately by semiconductor devices with control electrode ; , e.g. charge pumps
072adapted to generate an output voltage whose value is lower than the input voltage
H02M 3/07
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
04by static converters
06using resistors or capacitors, e.g. potential divider
07using capacitors charged and discharged alternately by semiconductor devices with control electrode ; , e.g. charge pumps
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL]/[NL]
  • PHILIPS AB [SE]/[SE] (SE)
Inventors
  • VAN LIESHOUT, Petrus, J., G.
Agents
  • KOPPEN, Jan
Priority Data
98201344.324.04.1998EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMBINED CAPACITIVE UP/DOWN CONVERTER
(FR) CONVERTISSEUR ELEVATEUR-ABAISSEUR DE TENSION CAPACITIVE
Abstract
(EN)
A switched capacitive voltage converter for converting an input voltage (Ui) between an input terminal (I) and reference terminal (RF) to an output voltage (U0) between an output terminal (O) and the reference terminal (RF). The voltage converter comprises only two capacitors (C1, C2) and five switches (S1-S5). The first (S1) and the second switch (S2) are coupled in series between the input terminal (I) and the output terminal (O). The third (S3) and the fifth (S5) switch are also coupled between the input terminal (I) and the output terminal (O). The first capacitor (C1) is coupled in series between a node common to the first (S1) and the second (S2) switches and a node common to the third (S3) and the fifth (S5) switch. The fourth switch (S4) is coupled between the node common to the third (S3) and the fifth (S5) switch and the reference terminal (RF). The second capacitor (C2) is coupled between the output terminal (O) and the reference terminal (RF). The voltage converter disclosed herein can operate as an up converter, a down converter as well as a buffer.
(FR)
L'invention un convertisseur de tension capacitive commuté permettant de convertir une tension d'entrée (Ui) entre une borne d'entrée (I) et une borne de référence (RF) en une tension de sortie (U0) entre une borne de sortie (O) et une borne de référence (RF). Le convertisseur de tension comprend seulement deux condensateurs (C1, C2) et cinq commutateurs (S1-S5). Les premier (S1) et second (S2) commutateurs sont montés en série entre la borne d'entrée (I) et la borne de sortie (O). Les troisième (S3) et cinquième (S5) commutateurs sont également montés entre la borne d'entrée (I) et la borne de sortie (O). Le premier condensateur (C1) est monté en série entre un noeud commun aux premier (S1) et second (S2) commutateurs et un noeud commun au troisième (S3) et cinquième (S5) commutateurs. Le quatrième (S4) commutateur est monté entre le noeud commun aux troisième (S3) et cinquième (S5) commutateurs et la borne de référence (RF). Le second condensateur (C2) est monté entre la borne de sortie (O) et la borne de référence (RF). Le convertisseur de tension peut servir de convertisseur élévateur de tension, de convertisseur abaisseur de tension et de tampon.
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