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1. (WO1997018618) DC-DC CONVERTERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018618 International Application No.: PCT/US1996/017914
Publication Date: 22.05.1997 International Filing Date: 15.11.1996
Chapter 2 Demand Filed: 04.06.1997
IPC:
H02M 3/335 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS 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
3
Conversion of dc power input into dc power output
22
with intermediate conversion into ac
24
by static converters
28
using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325
using devices of a triode or a transistor type requiring continuous application of a control signal
335
using semiconductor devices only
Applicants:
INTERNATIONAL POWER DEVICES, INC. [US/US]; 20 Linden Street Boston, MA 02134, US
Inventors:
LU, Qun; US
MA, Fei; US
ZENG, James, J.; US
Agent:
PRAHL, Eric, L.; Fish & Richardson P.C. 225 Franklin Street Boston, MA 02110-2804, US
Priority Data:
08/558,17515.11.1995US
Title (EN) DC-DC CONVERTERS
(FR) CONVERTISSEURS CONTINU-CONTINU
Abstract:
(EN) A DC-DC converter including a transformer (T) having a primary winding and a tapped secondary winding; an output filter made up of a filter inductor (Lf) and a filter capacitor (Cf) connected in series with one side of the output filter connected to the tap terminal of the secondary winding; a first unidirectional device (D1) and a second unidirectional device (D2) connected in series with each other and with opposite polarities, there being a common node between them, the first unidirectional device (D1) electrically connected to the first terminal of the secondary winding, the second unidirectional device (D2) electrically connected to the second terminal of the secondary winding, and the output filter (Lf, Cf) electrically coupled to the common node; a first switch (SW1) connected in series with the primary winding; and a clamping circuit connected between two of the terminals of the secondary winding, wherein the clamping circuit includes a clamping capacitor (C) connected in series with a second switch (SW2).
(FR) Convertisseur continu-continu comprenant un transformateur (T) possédant un enroulement primaire et un enroulement secondaire à prise; un filtre de sortie constitué d'un inducteur (Lf) et d'un condensateur (Cf) connecté en série à un côté du filtre de sortie raccordé à la borne de connexion de l'enroulement secondaire; un premier dispositif unidirectionnel (D1) et un second dispositif unidirectionnel (D2) connectés en série l'un à l'autre et dotés de polarités opposées, un noeud commun étant placé entre ceux-ci, le premier dispositif unidirectionnel (D1) étant connecté électriquement à la première borne de l'enroulement secondaire, le second dispositif unidirectionnel (D2) étant connecté électriquement à la seconde borne de l'enroulement secondaire, et le filtre de sortie (Lf, Cf) étant couplé électriquement au noeud commun; un premier commutateur (SW1) connecté en série à l'enroulement primaire; et un circuit de verrouillage connecté entre deux des bornes de l'enroulement secondaire. Le circuit de verrouillage comprend un condensateur de (C) connecté en série à un second commutateur (SW2).
Designated States: CN, KR
Publication Language: English (EN)
Filing Language: English (EN)