Title:
CHARGER
Document Type and Number:
Japanese Patent JP2765492
Kind Code:
B2
Abstract:
PURPOSE: To incorporate the function of a DC-DC converter and to obtain the high power factor by using a high-frequency transformer in which independent two secondary side coils for low and high voltages are provided for one primary side coil.
CONSTITUTION: A charger 1 comprises a high-frequency transformer 9 in which two secondary side coils 5, 6 of low and high voltages are provided for one primary side coil 3. In the case of charging, a storage battery 24 is connected to a high voltage output terminal 23, and a full-wave rectified voltage is supplied to a primary side input circuit 17 via a rectifier 37 by a commercial power source 35. An inductor 11 is provided at the one side of the divided two systems, a flyback voltage is generated across the inductor 11 in the low-voltage range of the input AC wave by the first switching element 13 provided between the inductor 11 and the negative side of the rectifier 37, the effective value of the input side AC voltage is raised to improve the power factor. As a result, the charger which has the function of the DC-DC converter and high power factor is obtained.
Inventors:
MATSUSHITA HIROMI
Application Number:
JP24544694A
Publication Date:
June 18, 1998
Filing Date:
October 11, 1994
Export Citation:
Assignee:
NIPPON PUROTEKUTAA KK
International Classes:
H02J7/10; B60L1/00; B60L11/18; H02M3/155; H02M3/28; (IPC1-7): B60L11/18; B60L1/00; H02J7/10; H02M3/155; H02M3/28
Domestic Patent References:
| JP7111711A | ||||
| JP7222306A | ||||
| JP6141484A |
Attorney, Agent or Firm:
Takao Yanagino
Previous Patent: 大豆たん白乳化物及びその製造法、食肉加工品並びに焼き込み調理パン
Next Patent: DATA CONVERSION SYSTEM FOR REMOTE PROCEDURE CALL PROCESSING
Next Patent: DATA CONVERSION SYSTEM FOR REMOTE PROCEDURE CALL PROCESSING