DocumentCode :
2539147
Title :
1.9MHz wireless power transmission system using coupled magnetic resonance
Author :
Seong-Min Kim ; In-Kui Cho ; Jeong-Ick Moon ; Jae-Hun Yoon ; Woo-Jin Byun ; Jae-ick Choi
Author_Institution :
Radio & Broadcasting Res. Div., Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Volume :
2
fYear :
2012
fDate :
21-23 May 2012
Firstpage :
519
Lastpage :
522
Abstract :
In this paper, a 1.9MHz and 60W wireless power transmission system for a fishing port using coupled magnetic resonances is presented. The proposed wireless power transmission system consists of the 130W class-F power transmitter, two magnetic resonance couplers and 30W full bridge diode rectifier receiver. The transmitter is composed of DDS(Direct Digital Synthesizer) block, class-F power amplifier and communication block to implement the frequency searching and power control function. Two magnetic resonance couplers are designed with a small spiral resonator. The diameter size of the spiral coil is 30cm(1.8 λ /1000). The receiver is composed of full bridge diode rectifier, overvoltage protection (OVP) with active dummy load, DC to DC converter and communication block. For the power control scheme, a communication block is embedded in the transmitter and the receiver. Using the communication block, the message about the error value of the received power is sent by the receiver to transmitter and the transmit power is controlled by transmitter using the received message. The power consumption of the fishing port is about 30W and the total power efficiency of this system is about 40%.
Keywords :
direct digital synthesis; inductive power transmission; magnetic resonance; marine power systems; power amplifiers; power control; radio receivers; radio transmitters; DC-DC power converter; DDS; active dummy load; class-F power amplifier; class-F power transmitter; communication block; coupled magnetic resonance; diode rectifier receiver; direct digital synthesizer; fishing port; frequency 1.9 MHz; overvoltage protection; power 130 W; power 30 W; power 60 W; power consumption; power control scheme; size 30 cm; spiral resonator; wireless power transmission system; Decision support systems; Magnetic Resonance; Power control; Power transmission system; Wireless power transmission;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Radar and Wireless Communications (MIKON), 2012 19th International Conference on
Conference_Location :
Warsaw
Print_ISBN :
978-1-4577-1435-1
Type :
conf
DOI :
10.1109/MIKON.2012.6233617
Filename :
6233617
Link To Document :
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