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Machine translation
1. (WO2014187390) CIRCUIT FOR ELIMINATING ACTIVE CLAMP TOPOLOGY FORWARD SHUTOFF OSCILLATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/187390    International Application No.:    PCT/CN2014/079185
Publication Date: 27.11.2014 International Filing Date: 04.06.2014
IPC:
H02M 3/335 (2006.01), H02M 1/36 (2007.01), H02M 3/28 (2006.01)
Applicants: ZTE CORPORATION [CN/CN]; ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan Shenzhen, Guangdong 518057 (CN)
Inventors: HUANG, Jianhua; (CN).
LI, Shengqi; (CN).
WANG, Xinkun; (CN).
ZHANG, Jintao; (CN)
Agent: CHINA PAT INTELLECTUAL PROPERTY OFFICE; 2nd Floor, Zhongguancun Intellectual Property Building, Block B, No.21 Haidian South Road, Haidian Beijing 100080 (CN)
Priority Data:
201320848832.X 20.12.2013 CN
Title (EN) CIRCUIT FOR ELIMINATING ACTIVE CLAMP TOPOLOGY FORWARD SHUTOFF OSCILLATION
(FR) CIRCUIT CONÇU POUR ÉLIMINER L'OSCILLATION DE COUPURE DIRECTE D'UNE TOPOLOGIE DE VERROUILLAGE ACTIF
(ZH) 一种消除有源钳位拓扑正激关机振荡电路
Abstract: front page image
(EN)A circuit for eliminating active clamp topology forward shutoff oscillation, comprising a first driving voltage end of a primary tube and a second driving voltage end of a primary clamper tube. The circuit for eliminating active clamp topology forward shutoff oscillation also comprises: a control circuit that is connected to the first driving voltage end and is used for controlling the make-and-break of the first driving voltage end (DRB1); a charging circuit that is provided between the control circuit and the second driving voltage end and is used for charging the second driving voltage end (DRB2) when the first driving voltage end (DRB1) is off. The present circuit provides a circuit having a low resistance that rapidly charges a clamper tube drive, thereby rapidly turning off the clamper tube and breaking a primary oscillation circuit. A primary main power converter therefore does not experience a voltage alternating between positive and negative, thereby enabling a secondary self-driving synchronous rectifier to avoid intermittent powered status during shutoff. The shutoff output waveform is monotonically decreasing, thereby ensuring the reliability of the system.
(FR)La présente invention concerne un circuit conçu pour éliminer l'oscillation de coupure directe d'une topologie de verrouillage actif, comprenant une première extrémité de tension d'attaque d'un tube primaire et une seconde extrémité de tension d'attaque d'un tube de verrouillage primaire. Ledit circuit conçu pour éliminer l'oscillation de coupure directe d'une topologie de verrouillage actif comprend en outre : un circuit de commande qui est connecté à la première extrémité de tension d'attaque et qui est conçu pour commander la fermeture et l'ouverture de la première extrémité de tension d'attaque (DRB1) ; et un circuit de charge disposé entre le circuit de commande et la seconde extrémité de tension d'attaque et qui est conçu pour charger la seconde extrémité de tension d'attaque (DRB2) quand la première extrémité de tension d'attaque (DRB1) est inactive.
(ZH)一种消除有源钳位拓扑正激关机振荡电路,包括原边主管的第一驱动电压端及原边钳位管的第二驱动电压端,其中,上述消除有源钳位拓扑正激关机振荡电路,还包括:与所述第一驱动电压端连接,用于控制所述第一驱动电压端(DRB1)的开关状态的控制电路;设置于所述控制电路与所述第二驱动电压端之间,用于当所述第一驱动电压端(DRB1)关断时,对所述第二驱动电压端(DRB2)充电的充电电路。该电路提供一低阻抗回路,对钳位管的驱动迅速充电,从而快速关断钳位管,切断原边振荡回路,使得原边主功率变压器不会出现正负交替的电压,从而使副边自驱的同步整流管在关机时不出现间断开通情况,让关机输出波形单调下降,保证了系统的可靠性。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)