Title:
RECTIFIER AND WIRELESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/005375
Kind Code:
A1
Abstract:
A rectifier comprises at least: a diode that rectifies input RF power; an input circuit that prevents leakage of DC power to an RF input port; a high-frequency control circuit that has a frequency characteristic that is in short-circuited condition with respect to some or all frequencies that are even multiples (2×n×f0 (where n is a positive integer)) of the frequency (f0) of the input RF power, and that is in open condition with respect to other frequencies; an output circuit having a frequency characteristic constituting a low pass filter that prevents passage of RF power and that delivers to the DC output port DC power that has passed through this low pass filter. The anode terminal of the diode is earthed and the output circuit and the high-frequency control circuit are connected in parallel to the cathode terminal of the diode. The input circuit and the high-frequency control circuit are connected between the RF input port and the cathode terminal of the diode.
Inventors:
YOSHIDA SHUHEI (JP)
TANOMURA MASAHIRO (JP)
TANOMURA MASAHIRO (JP)
Application Number:
PCT/JP2012/003865
Publication Date:
January 10, 2013
Filing Date:
June 13, 2012
Export Citation:
Assignee:
NEC CORP (JP)
YOSHIDA SHUHEI (JP)
TANOMURA MASAHIRO (JP)
YOSHIDA SHUHEI (JP)
TANOMURA MASAHIRO (JP)
International Classes:
H02M7/06; H02J17/00; H02M1/12
Foreign References:
| JPH09271166A | 1997-10-14 | |||
| JPH09275683A | 1997-10-21 | |||
| JPH08149820A | 1996-06-07 | |||
| JP2009044933A | 2009-02-26 |
Attorney, Agent or Firm:
HAYAMI, SHINJI (JP)
Shinji Hayami (JP)
Shinji Hayami (JP)
Download PDF:
Claims:
Previous Patent: ACCELERATOR PEDAL REACTION FORCE CONTROL DEVICE
Next Patent: REAL-IMAGE ZOOM FINDER AND IMAGE PICK-UP DEVICE
Next Patent: REAL-IMAGE ZOOM FINDER AND IMAGE PICK-UP DEVICE