TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Wittmann, Jürgen
A1  - Barner, Alexander
A1  - Rosahl, Thoralf
A1  - Wicht, Bernhard
ED  - Pribyl, Wolfgang
T1  - A 12V 10MHz buck converter with dead time control based on a 125 ps differential delay chain
T2  - ESSCIRC 2015 - 41st European Solid State Circuits Conference (ESSCIRC) : 14 - 18 Sept. 2015, Graz, Austria
N2  - This paper presents an integrated synchronous buck converter for input voltages >12V with 10MHz switching frequency. The converter comprises a predictive dead time control with frequency compensated sampling of the switching node which does not require body diode forward conduction. A high dead time resolution of 125 ps is achieved by a differential delay chain with 8-bit resolution. This way, the efficiency of fast switching DCDC converters can be optimized by eliminating the body diode forward conduction losses, minimizing reverse recovery losses and by achieving zero voltage switching at turn off. The converter was implemented in a 180nm high-voltage BiCMOS technology. The power losses were measured to be reduced by 30%by the proposed dead time control, which results in a 6% efficiency increase at VOUT = 5V and 0.2A load. The peak efficiency is 81 %.
Y1  - 2015
SN  - 978-1-4673-7472-9
SB  - 978-1-4673-7472-9
U6  - https://doi.org/10.1109/ESSCIRC.2015.7313859
DO  - https://doi.org/10.1109/ESSCIRC.2015.7313859
SP  - 184
EP  - 187
S1  - 4
PB  - IEEE
CY  - Piscataway, NJ
ER  -