TY - CHAP
T1 - Microfabricated coupled inductors for DC-DC converters for microprocessor power delivery
AU - Prabhakaran, Satish
AU - Sullivan, Charles R.
AU - O'Donnell, Terence
AU - Brunet, Magali
AU - Roy, Saibal
PY - 2004
Y1 - 2004
N2 - High-current, low-voltage power converters with fast transient response are needed for powering digital systems such as microprocessors. Microfabricated coupled inductors for such power converters are discussed. A four-phase microfabricated magnetic structure with 14 nH of inductance per phase has been fabricated for a 5 MHz, 5V-to-1 V, 10 A dc-dc converter. The first prototype devices have been built with nickel-iron (NiFe) cores and copper conductors on a silicon substrate. Small-signal measurements on the inductors have been performed and predictions have been confirmed. A model for analyzing the performance of coupled inductors is presented. The devices have been implemented in a prototype converter and the measured performance is compared with the predicted results.
AB - High-current, low-voltage power converters with fast transient response are needed for powering digital systems such as microprocessors. Microfabricated coupled inductors for such power converters are discussed. A four-phase microfabricated magnetic structure with 14 nH of inductance per phase has been fabricated for a 5 MHz, 5V-to-1 V, 10 A dc-dc converter. The first prototype devices have been built with nickel-iron (NiFe) cores and copper conductors on a silicon substrate. Small-signal measurements on the inductors have been performed and predictions have been confirmed. A model for analyzing the performance of coupled inductors is presented. The devices have been implemented in a prototype converter and the measured performance is compared with the predicted results.
UR - https://www.scopus.com/pages/publications/8744234185
U2 - 10.1109/PESC.2004.1354790
DO - 10.1109/PESC.2004.1354790
M3 - Chapter
AN - SCOPUS:8744234185
SN - 0780383990
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 4467
EP - 4472
BT - 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
T2 - 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Y2 - 20 June 2004 through 25 June 2004
ER -