Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Saturday 31.10.2020 at 7:00 AM CET
Settings

Settings

Goto Application

1. WO2020194114 - FLYBACK CONVERTER WITH SYNCHRONOUS RECTIFIER CONTROLLER

Publication Number WO/2020/194114
Publication Date 01.10.2020
International Application No. PCT/IB2020/052341
International Filing Date 13.03.2020
IPC
H02M 3/335 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
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
H02M 1/08 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
08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
CPC
H02M 1/088
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
08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
088for the simultaneous control of series or parallel connected semiconductor devices
H02M 3/1588
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
158including plural semiconductor devices as final control devices for a single load
1588comprising at least one synchronous rectifier element
H02M 3/335
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
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
H02M 3/33592
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
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
33569having several active switching elements
33576having at least one active switching element at the secondary side of an isolation transformer
33592having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
Applicants
  • APPULSE POWER INC. [CA]/[CA]
Inventors
  • RADIC, Aleksandar
  • VUKADINOVIC, Nenad
Priority Data
16/565,05709.09.2019US
62/825,60628.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FLYBACK CONVERTER WITH SYNCHRONOUS RECTIFIER CONTROLLER
(FR) CONVERTISSEUR INDIRECT AVEC DISPOSITIF DE COMMANDE DE REDRESSEUR SYNCHRONE
Abstract
(EN)
A flyback converter includes a primary side circuit to receive an input voltage signal, a secondary side circuit to generate an output voltage signal using the input voltage signal, a synchronous rectifier switch, and a synchronous rectifier controller. The synchronous rectifier controller receives an attenuated drain-source voltage signal of the synchronous rectifier switch and the output voltage signal. The synchronous rectifier controller includes a threshold voltage generator to generate a first voltage signal using the output voltage signal, a first comparator to compare the attenuated drain-source voltage signal to the first voltage signal and, in response, generate a first comparison signal, and a second comparator to compare the attenuated drain-source voltage signal to a second voltage signal and, in response, generate a second comparison signal. The synchronous rectifier controller generates a control signal for switching the synchronous rectifier switch to an ON-state based on the first and second comparison signals.
(FR)
L'invention concerne un convertisseur indirect comprenant un circuit côté primaire servant à recevoir un signal de tension d'entrée, un circuit côté secondaire servant à générer un signal de tension de sortie à l'aide du signal de tension d'entrée, un commutateur redresseur synchrone et un dispositif de commande de redresseur synchrone. Le dispositif de commande de redresseur synchrone reçoit un signal de tension drain-source atténué du commutateur de redresseur synchrone et le signal de tension de sortie. Le dispositif de commande de redresseur synchrone comprend un générateur de tension de seuil servant à générer un premier signal de tension à l'aide du signal de tension de sortie, un premier comparateur servant à comparer le signal de tension drain-source atténué au premier signal de tension et, en réponse, à générer un premier signal de comparaison, et un second comparateur servant à comparer le signal de tension drain-source atténué à un second signal de tension et, en réponse, à générer un second signal de comparaison. Le dispositif de commande de redresseur synchrone génère un signal de commande servant à commuter le commutateur redresseur synchrone à un état passant sur la base des premier et second signaux de comparaison.
Also published as
Latest bibliographic data on file with the International Bureau