A synchronous rectification using a digital PLL technique for contactless power supplies

Author

Miura, H. ; Arai, S. ; Sato, F. ; Matsuki, H. ; Sato, T.

Author_Institution

Graduate Sch. of Eng., Tohoku Univ., Sendai, Japan

fYear

2005

fDate

4-8 April 2005

Firstpage

229

Lastpage

230

Abstract

Transcutaneous energy transmission systems for the artificial heart with synchronous rectifiers were developed. The input voltage is 24 V and the output voltage is 9 to 18 V. This paper shows the efficiency of the system with synchronous rectifier using a digital PLL technique achieved 92% DC-DC efficiency at 5 mm coil distance. Using the ferrite core and a digital PLL technique, inductor and capacitor were eliminated from the rectifier circuit. And the circuit was mounted to the back of the secondary coil. And we developed the control systems for stable output voltage and apply this result to other contact power supply system.

Keywords

capacitors; digital phase locked loops; inductors; power supplies to apparatus; prosthetic power supplies; rectification; rectifying circuits; 24 V; 5 mm; 9 to 18 V; 92 percent; artificial heart; capacitor; coil; contactless power supplies; digital PLL technique; ferrite core; inductor; synchronous rectification; synchronous rectifiers; transcutaneous energy transmission systems; Artificial heart; Capacitors; Circuits; Coils; Ferrites; Inductors; Phase locked loops; Power supplies; Rectifiers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1463543

Filename

1463543