WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2016065223) METHOD OF DRIVING FETS IN SATURATING SELF-OSCILLATING PUSH-PULL ISOLATED DC-DC CONVERTER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2016/065223 International Application No.: PCT/US2015/057047
Publication Date: 28.04.2016 International Filing Date: 23.10.2015
IPC:
H02M 1/08 (2006.01) ,H02M 3/155 (2006.01)
Applicants: MURATA MANUFACTURING CO., LTD.[JP/JP]; 10-1 Higashikotari 1-chome Nagaokakyo-shi, Kyoto 617-8555, JP
MURATA POWER SOLUTIONS[US/US]; 11 Cabot Boulevard Mansfield, Massachusetts 02048, US (AG)
Inventors: SIDAPARA, Rohit; GB
Agent: MEDLEY, Peter; US
Priority Data:
62/068,01224.10.2014US
Title (EN) METHOD OF DRIVING FETS IN SATURATING SELF-OSCILLATING PUSH-PULL ISOLATED DC-DC CONVERTER
(FR) PROCÉDÉ DE COMMANDE DE TRANSISTORS À EFFET DE CHAMP DANS UN CONVERTISSEUR CC-CC ISOLÉ PUSH-PULL AUTO-OSCILLANT À SATURATION
Abstract: front page image
(EN) A converter includes a DC input; a transformer including first and second primary windings, first and second secondary windings, and first and second feedback windings; a first field-effect transistor; a second field-effect transistor; and a drive circuit connected to the first and second field-effect transistors. The drive circuit includes a bias circuit that applies a bias voltage to gates of the first and second field-effect transistors via the first and second feedback windings during start-up of the converter, wherein the bias voltage is reduced to zero or substantially zero after start-up of the converter; and a reset circuit that resets the bias circuit when the converter is turned off. The converter is a self-oscillating push-pull DC-DC converter.
(FR) L'invention concerne un convertisseur qui comprend une entrée en courant continu; un transformateur comprenant un premier et un second enroulement primaire, un premier et un second enroulement secondaire, et un premier et un second enroulement de rétroaction; un premier transistor à effet de champ; un second transistor à effet de champ; et un circuit de commande connecté aux premier et second transistors à effet de champ. Le circuit de commande comprend un circuit de polarisation qui applique une tension de polarisation aux grilles des premier et second transistors à effet de champ par l'intermédiaire des premier et second enroulements de rétroaction pendant le démarrage du convertisseur, la tension de polarisation étant réduite à zéro ou pratiquement zéro après le démarrage du convertisseur; et un circuit de réinitialisation, qui réinitialise le circuit de polarisation quand le convertisseur est mis hors tension. Ce convertisseur est un convertisseur CC-CC push-pull auto-oscillant.
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, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: English (EN)
Filing Language: English (EN)