Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26640745
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 IEEE+J+Emerg+Sel+Top+Power+Electron
2015 ; 3
(1
): 215-225
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Power Loss Analysis and Comparison of Segmented and Unsegmented Energy Coupling
Coils for Wireless Energy Transfer
#MMPMID26640745
Tang SC
; McDannold NJ
IEEE J Emerg Sel Top Power Electron
2015[Mar]; 3
(1
): 215-225
PMID26640745
show ga
This paper investigated the power losses of unsegmented and segmented energy
coupling coils for wireless energy transfer. Four 30-cm energy coupling coils
with different winding separations, conductor cross-sectional areas, and number
of turns were developed. The four coils were tested in both unsegmented and
segmented configurations. The winding conduction and intrawinding dielectric
losses of the coils were evaluated individually based on a well-established
lumped circuit model. We found that the intrawinding dielectric loss can be as
much as seven times higher than the winding conduction loss at 6.78 MHz when the
unsegmented coil is tightly wound. The dielectric loss of an unsegmented coil can
be reduced by increasing the winding separation or reducing the number of turns,
but the power transfer capability is reduced because of the reduced magnetomotive
force. Coil segmentation using resonant capacitors has recently been proposed to
significantly reduce the operating voltage of a coil to a safe level in wireless
energy transfer for medical implants. Here, we found that it can naturally
eliminate the dielectric loss. The coil segmentation method and the power loss
analysis used in this paper could be applied to the transmitting, receiving, and
resonant coils in two- and four-coil energy transfer systems.