TY - GEN
T1 - Voltage-boosting wireless power delivery system with fast load tracker by ΔΣ-modulated sub-harmonic resonant switching
AU - Shinoda, Ryota
AU - Tomita, Kazutoshi
AU - Hasegawa, Yuya
AU - Ishikuro, Hiroki
PY - 2012
Y1 - 2012
N2 - Recently, many applications have emerged that use wireless power delivery technology. A new standard "Qi" [1] has been established for battery operated portable devices. The rechargeable battery acts as a power buffer and shields the rapid load variation. Therefore, the requirement of the response to load variation is not so stringent and time constant of the power control loop is longer than several tens of milliseconds. Several hundred kHz band is chosen for switching frequency to reduce the power loss and frequency modulation (FM) [2] or pulse-width modulation (PWM) [3] are used for power control because of their relaxed in-band spurious emission regulation.
AB - Recently, many applications have emerged that use wireless power delivery technology. A new standard "Qi" [1] has been established for battery operated portable devices. The rechargeable battery acts as a power buffer and shields the rapid load variation. Therefore, the requirement of the response to load variation is not so stringent and time constant of the power control loop is longer than several tens of milliseconds. Several hundred kHz band is chosen for switching frequency to reduce the power loss and frequency modulation (FM) [2] or pulse-width modulation (PWM) [3] are used for power control because of their relaxed in-band spurious emission regulation.
UR - http://www.scopus.com/inward/record.url?scp=84860666439&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860666439&partnerID=8YFLogxK
U2 - 10.1109/ISSCC.2012.6177018
DO - 10.1109/ISSCC.2012.6177018
M3 - Conference contribution
AN - SCOPUS:84860666439
SN - 9781467303736
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 288
EP - 289
BT - 2012 IEEE International Solid-State Circuits Conference, ISSCC 2012 - Digest of Technical Papers
T2 - 59th International Solid-State Circuits Conference, ISSCC 2012
Y2 - 19 February 2012 through 23 February 2012
ER -