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1. WO2020139958 - SYSTEMS, APPARATUS AND METHODS OF ZERO CURRENT DETECTION AND START-UP FOR DIRECT CURRENT (DC) TO DC CONVERTER CIRCUITS

Publication Number WO/2020/139958
Publication Date 02.07.2020
International Application No. PCT/US2019/068594
International Filing Date 26.12.2019
IPC
H02M 1/36 2007.01
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
36Means for starting or stopping converters
H02M 3/156 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
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
156with automatic control of output voltage or current, e.g. switching regulators
H05B 33/08 2020.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
08Circuit arrangements for operating electroluminescent light sources
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
H02M 1/36
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
36Means for starting or stopping converters
H02M 3/156
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
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
156with automatic control of output voltage or current, e.g. switching regulators
H05B 45/3725
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
30Driver circuits
37Converter circuits
3725Switched mode power supply [SMPS]
Applicants
  • LUMILEDS HOLDING B.V. [NL]/[NL]
  • LUMILEDS LLC [US]/[US] (PH)
Inventors
  • SONG, Zhihua
Agents
  • KERNER, Dawn C.
Priority Data
16/235,59628.12.2018US
19158037.219.02.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS, APPARATUS AND METHODS OF ZERO CURRENT DETECTION AND START-UP FOR DIRECT CURRENT (DC) TO DC CONVERTER CIRCUITS
(FR) SYSTÈMES, APPAREIL ET PROCÉDÉS DE DÉTECTION ET DE DÉMARRAGE DE COURANT NUL POUR CIRCUITS CONVERTISSEURS DE COURANT CONTINU (CC) À CC
Abstract
(EN)
Systems, apparatus and methods for zero current detection and start-up for DC-DC converters are described herein. A device includes a first circuit and a second circuit. The first circuit receives a first voltage, at a first input, and provides a second voltage having one of a first level and a second level based on a level of the first voltage being above or below a threshold voltage. The second circuit is electrically coupled to the first input of the first circuit and decreases the level of the first voltage below a threshold voltage on a condition that the level of the first voltage is above the threshold voltage for a maximum time.
(FR)
L'invention concerne des systèmes, un appareil et des procédés de détection et de démarrage de courant nul pour des convertisseurs CC-CC. Un dispositif comprend un premier circuit et un deuxième circuit. Le premier circuit reçoit une première tension, à une première entrée et fournit une deuxième tension ayant l'un d'un premier niveau et d'un deuxième niveau sur la base d'un niveau de la première tension supérieur ou inférieur à une tension seuil. Le deuxième circuit est couplé électriquement à la première entrée du premier circuit et abaisse le niveau de la première tension au-dessous d'une tension seuil dans une condition selon laquelle le niveau de la première tension est supérieur à la tension seuil pendant une durée maximale.
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Latest bibliographic data on file with the International Bureau