专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2021190800A1 GLEICHSPANNUNGSKONVERTER 审中-公开
公开(公告)号：WO2021190800A1
公开(公告)日：2021-09-30
申请号：PCT/EP2021/051313
申请日：2021-01-21
申请人： ROBERT BOSCH GMBH
发明人： GUDINO CARRIZALES, Emiliano
IPC分类号： H02M3/335 , H02M3/337 , H02M1/00 , H02M1/34 , B60L15/007 , B60L2210/12 , B60L2240/52 , H02M1/0095 , H02M1/342 , H02M3/33576
摘要： Die vorliegende Erfindung schafft einen Gleichspannungswandler zur Energieübertragung von einem Hochvoltnetz in ein Niedervoltnetz. Hierzu wird eine Schaltungskonfiguration eingesetzt, welche alternativ als Activ-clamp Flyback-Konverter oder Active-clamp Buck-Konverter betrieben werden kann.

2. 发明申请

WO2022040537A1 SYSTEMS AND METHODS FOR CONTROLLING SOFT-SWITCHING CURRENT SOURCE CONVERTERS 审中-公开
公开(公告)号：WO2022040537A1
公开(公告)日：2022-02-24
申请号：PCT/US2021/046919
申请日：2021-08-20
申请人： GEORGIA TECH RESEARCH CORPORATION
发明人： MAUGER, Mickael J. , KANDULA, Rajendra Prasad , DIVAN, Deepak M.
IPC分类号： H02M7/162 , H02M7/48 , H02M7/521 , H02M7/523 , H02M1/0058 , H02M1/342 , H02M5/225 , H02M7/4815
摘要： An exemplary embodiment of the present disclosure provides a resonant module and sensing circuits for use with a soft-switching current source converter. The resonant module comprises a resonant switch, a resonant inductor, and a resonant capacitor. The resonant inductor is connected in electrical series with the resonant switch. The resonant capacitor is connected in parallel with the serially connected resonant switch and resonant capacitor. The resonant module further comprises first and second sensing circuits. The first sensing circuit is configured to generate a first sensing signal indicative of when the time derivative of a voltage across the resonant capacitor is negative. The second sensing circuit is configured to generate a second sensing signal indicative of when a voltage across the resonant capacitor is less than or equal to a predetermined threshold value.

3. 发明申请

WO2021250416A1 CONVERTER 审中-公开
公开(公告)号：WO2021250416A1
公开(公告)日：2021-12-16
申请号：PCT/GB2021/051449
申请日：2021-06-10
申请人： PULSIV LIMITED
发明人： AHMED, Mohammed Zaki
IPC分类号： H02M1/34 , H02M3/335 , H02M1/342 , H02M3/33569
摘要： A flyback converter and forward converter is described comprising an input coil (12), a primary switch 16 connected in series with the input coil (12), and an output coil (14) magnetically coupled to the input coil (12), the input coil (12) having an input side (12a) connected to an input (32) of the circuit and a switch side (12b) connected to the primary switch (16), and further comprising an input side clamp circuit (22), the input side clamp circuit (22) comprising an energy store (26) and a switch arrangement (28) controlled such that the leakage inductance energy stored, in use, in the energy store (26), can be discharged to the input side (12a) of the input coil

4. 发明申请

WO2021144521A1 PROCÉDÉ ET DISPOSITIF DE CONVERSION D'UNE TENSION AVEC COMMUTATION DOUCE DES INTERRUPTEURS 审中-公开
公开(公告)号：WO2021144521A1
公开(公告)日：2021-07-22
申请号：PCT/FR2021/050020
申请日：2021-01-07
申请人： CENTUM ADETEL TRANSPORTATION
发明人： PERON, Benoît , BRUDER, Arnaud
IPC分类号： H02M3/335 , H02M1/34 , H02M1/44 , H02M1/00 , H02M1/0087 , H02M1/342 , H02M3/01 , H02M3/33573 , H02M3/33576
摘要： Procédé (100) de conversion d'une tension d'entrée (Vin) d'un convertisseur (1) en une tension de sortie (Vout) le circuit comprenant un premier bras de pont formé deux interrupteurs (A) et (B), un deuxième bras de pont formé par deux interrupteurs (C) et (D), connectés en parallèle, une bobine primaire couplée à une bobine secondaire, et connectée par un pôle au point milieu (PAB) du premier bras de pont, et par un autre pôle au point milieu (PCD) du deuxième bras de pont; le circuit comprenant en outre un condensateur en parallèle entre les bornes respectives de chacun des interrupteurs (A, B, C, D); un troisième bras de pont formé par deux interrupteurs (E) et (F), connectés en série; chacun des interrupteurs (A, B, C, D, E, F) étant associé à une diode aux bornes dudit interrupteur; une inductance d'injection (Linj) connectée au point milieu (PAB) du premier bras de pont, et au point milieu (PEF) du troisième bras de pont; une unité de contrôle-commande configurée pour commander les interrupteurs sur ON ou sur OFF, selon un cycle de commande configuré pour assurer une commutation douce sur ON et sur OFF.

5. 发明申请

WO2021259918A1 SOFT-SWITCHING PULSE-WIDTH MODULATED DC-DC POWER CONVERTER 审中-公开
公开(公告)号：WO2021259918A1
公开(公告)日：2021-12-30
申请号：PCT/EP2021/066965
申请日：2021-06-22
申请人： SYDDANSK UNIVERSITET
发明人： NYMAND, Morten
IPC分类号： H02M3/335 , H02M1/34 , H02M1/0058 , H02M1/342 , H02M3/33573 , H02M3/33576
摘要： The present disclosure relates to a switch-mode DC-DC power converter comprising at least two power ports comprising an input port and an output port, wherein the switch-mode DC-DC power converter comprises a hard-switching circuit comprising a plurality of semiconducting devices including at least a first switching element. The hard-switching circuit is configured to receive a DC voltage source at an input side and to provide a substantially rectified output at an output side. The switch-mode DC-DC power converter further comprises a first capacitance, a first inductance and a soft-switching circuit. The first capacitance is coupled in parallel across one of the at least two power ports at one side of the hard-switching circuit whereas the first inductance is coupled in series with another of the at least two power ports and the hard-switching circuit at a second side of the hard-switching circuit opposite the first capacitance. The soft-switching circuit comprises a second capacitance, a second inductance, a first rectifying element and a controlled discharger, such as a voltage regulating element. The second inductance is coupled to the first capacitance and to at least one of the plurality of semiconducting devices. The first rectifying element is coupled to the second inductance and the second capacitance to charge the second capacitance by forward biasing the first rectifying element based on a voltage being induced across the second inductance in response to the hard-switching circuit transitioning from one mode to another mode. The controlled discharger is coupled to the second capacitance to then reduce a voltage across the second capacitance towards a voltage level substantially above the voltage across the first capacitance.

6. 发明申请

WO2021183882A2 MODE OPERATION DETECTION FOR CONTROL OF A POWER CONVERTER WITH AN ACTIVE CLAMP SWITCH 审中-公开
公开(公告)号：WO2021183882A2
公开(公告)日：2021-09-16
申请号：PCT/US2021/022100
申请日：2021-03-12
申请人： POWER INTEGRATIONS, INC.
发明人： TIAN, Jinyuan , AHMED, Munadir Aziz , ODELL, Arthur B. , DUVNJAK, Rajko
IPC分类号： H02M3/335 , H02M1/00 , H02M1/34 , H02M1/38 , H02M1/0006 , H02M1/0058 , H02M1/342 , H02M3/33592
摘要： A secondary controller configured for use in a power converter, the secondary controller comprising: a detector circuit configured to generate a crossing threshold signal in response to a forward voltage signal crossing below a threshold; a comparator coupled to generate a first state of an off signal in response to the forward voltage signal being greater than a turn off threshold, the comparator further coupled to generate a second state of the off signal in response to the forward voltage signal being less than the turn off threshold; a first flip flop coupled to turn on a synchronous rectifier in response to the crossing threshold signal and to turn off the synchronous rectifier in response to the second state of the off signal; a mode detection circuit configured to output a first mode signal in response to a feedback signal being below a reference and a first state of a secondary drive signal, the mode detection circuit further configured to output a second mode signal in response to the feedback signal being below the reference and a second state of the secondary drive signal; anda control circuit configured to generate a first pattern of a request signal in response to the first mode signal, the control circuit further configured to generate a second pattern of the request signal in response to the second mode signal.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式