Resonance terminal device for resonant wireless power reception system

• US 10,230,274 B2
• Filed: 03/20/2017
• Issued: 03/12/2019
• Est. Priority Date: 05/02/2012
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Joon-Il, Park, Se-Ho, Yeo, Sung-Ku, Lee, Woo-Ram, Lee, Jeong-Seok
• Primary Examiner(s): Cavallari-See, Daniel
• Application Number:
  US15/463,793
• Publication Number:
  US 20170194818A1
• Time in Patent Office: 722 Days
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H03H 7/0115 comprising only inductors and capacitors H03H7/075, H03H7/09, H03H7/12, H03H7/13 take precedence
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04M 2250/04 including near field communication means, e.g. RFID

Abstract

A resonant wireless power reception apparatus includes a wireless near field communication (NFC) antenna for performing an NFC function through an NFC frequency band, a resonator for receiving resonant wireless power using a resonance frequency different from the NFC frequency band, the resonator being installed adjacent to the NFC antenna, and a high impedance circuit for filtering a signal having the NFC frequency band provided from the NFC antenna, the high impedance circuit being connected to the resonator.

Claims

1. A resonant wireless power reception apparatus, comprising:

a near field communication (NFC) antenna for performing an NFC function through an NFC frequency band;

a resonator for receiving wireless power using a resonance frequency, the resonator being installed adjacent to the NFC antenna and having a first terminal and second terminal, wherein the resonance frequency is not within the NFC frequency band;

a first filer circuit for filtering a signal whose frequency is within the NFC frequency band, the first filter circuit having a first end and a second end, wherein the first end of the first filter circuit is connected to the first terminal of the resonator;

a second filter circuit for filtering a signal whose frequency is within the NFC frequency band, the second filter circuit having a first end and a second end, wherein the first end of the second filter circuit is connected to the second terminal of the resonator; and

a shunt capacitor having a first end that is directly connected to the second end of the first filter circuit and a second end that is directly connected to the second end of the second filter circuit and having a preset capacitance of eliminate harmonic radiation characteristics generated by the resonator.

2. The resonant wireless power reception apparatus of claim 1, wherein the first filter circuit and the second filter circuit comprise a band stop filter (BSF).

3. The resonant wireless power reception apparatus of claim 1, wherein the NFC antenna is mechanically disposed inside the resonator.