Title :
Piezoelectric transformer AC-DC converter over a worldwide range of input voltage by combined PWM and PFM control
Author :
Hamamura, Sunao ; Kurose, Daisuke ; Ninomiya, Tamotsu ; Yamamoto, Mitsuru
Author_Institution :
Media Network Div., NEC Eng. Ltd., Kawasaki, Japan
fDate :
6/23/1905 12:00:00 AM
Abstract :
An AC-DC power converter using a piezoelectric transformer is presented. A new control method of the combination of PVM and PFM control is used. The AC-DC power converter for worldwide range of input voltage implemented on a printed circuit board is experimentally evaluated and as a result, a good controllability is successfully achieved
Keywords :
AC-DC power convertors; PWM power convertors; piezoelectric devices; power transformers; pulse frequency modulation; rectifying circuits; switching circuits; voltage control; PWM/PFM combined control scheme; controllability; piezoelectric transformer AC-DC converter; printed circuit board; worldwide input voltage range; AC generators; Computer displays; Feedback circuits; Mobile computing; Power transformer insulation; Pulse width modulation; Pulse width modulation converters; Switching converters; Vibrations; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954055
