Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2007004251) DC/DC CONVERTER AND POWER AMPLIFIER TO WHICH THE SAME HAS BEEN APPLIED
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/004251 International Application No.: PCT/JP2005/012027
Publication Date: 11.01.2007 International Filing Date: 30.06.2005
IPC:
H02M 3/156 (2006.01) ,H03F 1/02 (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
02
without intermediate conversion into ac
04
by static converters
10
using discharge tubes with control electrode or semiconductor devices with control electrode
145
using devices of a triode or transistor type requiring continuous application of a control signal
155
using semiconductor devices only
156
with automatic control of output voltage or current, e.g. switching regulators
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
1
Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02
Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
Applicants:
富士通株式会社 FUJITSU LIMITED [JP/JP]; 〒2118588 神奈川県川崎市中原区上小田中4丁目1番1号 Kanagawa 1-1, Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-shi, Kanagawa 2118588, JP (AllExceptUS)
高野 健 TAKANO, Takeshi [JP/JP]; JP (UsOnly)
大石 泰之 OISHI, Yasuyuki [JP/JP]; JP (UsOnly)
久保 徳郎 KUBO, Tokuro [JP/JP]; JP (UsOnly)
馬庭 透 MANIWA, Toru [JP/JP]; JP (UsOnly)
Inventors:
高野 健 TAKANO, Takeshi; JP
大石 泰之 OISHI, Yasuyuki; JP
久保 徳郎 KUBO, Tokuro; JP
馬庭 透 MANIWA, Toru; JP
Agent:
林 恒徳 HAYASHI, Tsunenori; 〒2220033 神奈川県横浜市港北区新横浜3-9-5 第三東昇ビル3階 林・土井国際特許事務所 Kanagawa Hayashi, Doi & Associates 3rd Floor, Toshou-Bldg. No.3 3-9-5, Shin-yokohama Kohoku-ku, Yokohama-shi Kanagawa 2220033, JP
Priority Data:
Title (EN) DC/DC CONVERTER AND POWER AMPLIFIER TO WHICH THE SAME HAS BEEN APPLIED
(FR) CONVERTISSEUR CONTINU-CONTINU ET AMPLIFICATEUR DE PUISSANCE SUR LEQUEL CELUI-CI A ÉTÉ APPLIQUÉ
(JA) DC/DCコンバータ及び,これを適用した電力増幅器
Abstract:
(EN) A DC/DC converter, the output signal of which can be controlled by use of a wideband signal input, is used as a power supply, thereby configuring a power amplifier having a high efficiency. The DC/DC converter comprises two C-class amplifiers; a rectifying circuit connected between the respective outputs of the two C-class amplifiers; and an oscillator that generates a predetermined frequency signal. The predetermined frequency signals outputted from the oscillator are inputted to the two respective C-class amplifiers. The phase difference between the predetermined frequency signals to be inputted to the two C-class amplifiers is controlled, thereby causing the magnitude of the DC voltage outputted from the rectifying circuit to be variable.
(FR) L'invention concerne un convertisseur continu-continu dont le signal de sortie peut être commandé grâce à l'utilisation d'une entrée de signal à large bande, lequel est utilisé en tant qu'alimentation, ce qui configure ainsi un amplificateur de puissance présentant un rendement élevé. Le convertisseur continu-continu comprend deux amplificateurs en classe C, un circuit de redressement relié entre les sorties respectives des deux amplificateurs en classe C ainsi qu'un oscillateur qui génère un signal de fréquence prédéterminée. Les signaux de fréquence prédéterminée en sortie de l'oscillateur sont appliqués en entrée aux deux amplificateurs respectifs en classe C. La différence de phase entre les signaux de fréquence prédéterminée à appliquer en entrée aux deux amplificateurs en classe C est régulée, ce qui amène l'amplitude de la tension continue en sortie du circuit de redressement à être variable.
(JA)  広帯域信号入力により出力信号の制御が可能のDC/DCコンバータであって,このDC/DCコンバータを電源として用いることにより,高効率の電力増幅器が構成できる。前記DC/DCコンバータは,2つのC級増幅器と,前記2つのC級増幅器のそれぞれの出力間に接続された整流回路と,所定周波数信号の発振器を有し,前記発振器から出力される所定周波数信号を前記2つのC級増幅器のそれぞれに入力し,前記2つのC級増幅器に入力される所定周波数信号の位相差を制御して,前記整流回路から出力される直流電圧の大きさを可変とする。
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP1916759JP4558792