Takashi YAMASHITA


Power Systems for Telecommunications in the IT Age
Hiroaki IKEBE Takashi YAMASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/12/01
Vol. E87-B  No. 12  pp. 3414-3421
Type of Manuscript:  INVITED PAPER (Special Section on the 25th International Telecommunications Energy Conference (INTELEC'03))
Category: 
Keyword: 
Internet data centerpower systemUPSDC power systemDC/AC universal system
 Summary | Full Text:PDF(2.1MB)

Analysis and Design of a Two-Loop Controlled Switching Power Amplifier
Hisahito ENDO Takashi YAMASHITA Toshiyuki SUGIURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/09/25
Vol. E76-B  No. 9  pp. 1193-1201
Type of Manuscript:  PAPER
Category: Power Supply
Keyword: 
switching power amplifierportable telephoneswitching regulatortwo-loop controlsmall-signal transfer functions
 Summary | Full Text:PDF(555.3KB)

A High-Input-Voltage Converter Operating at 200kHz
Satoshi OHTSU Hisao ISHII Takashi YAMASHITA Toshiyuki SUGIURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/11/25
Vol. E75-B  No. 11  pp. 1151-1158
Type of Manuscript:  Special Section PAPER (Special Issue on Telecommunications Energy Systems and Switching Power Converters)
Category: 
Keyword: 
high-input-voltagetwo-MOSFET forward converterstray capacitanceresonant resetreset circuit
 Summary | Full Text:PDF(872KB)