TY - GEN
T1 - Design and analysis of 37.5% energy-recycling flyback-type class-D gate driver IC with 5-to-15V level-conversion
AU - Kang, Taewook
AU - Kim, Jaeha
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/11/11
Y1 - 2014/11/11
N2 - This paper presents an energy-recycling class-D gate driver IC which can also perform 5-to-15V level up-conversion using a bidirectional flyback converter topology. The gate driver itself is a mini switching regulator that operates at 5∼15-MHz to generate 1-μs transition time gate-switching waveforms. In order to maintain uniform charging/discharging currents during transitions, the embedded flyback converter operates in a pulse-frequency modulation (PFM) mode while charging and in a pulse-width modulation (PWM) mode while discharging the gate node. The required pulses with digitally programmable frequencies and duty-cycles are efficiently generated by a custom-designed IC, fabricated in a 0.25-μm HV CMOS technology. Also, the presented analysis guides a way to achieve the desired transition time with the maximum efficiency. The prototype IC demonstrates 37.5% energy recycling while driving a 15-V IGBT power switch with 105-nC gate charge at 20-kHz.
AB - This paper presents an energy-recycling class-D gate driver IC which can also perform 5-to-15V level up-conversion using a bidirectional flyback converter topology. The gate driver itself is a mini switching regulator that operates at 5∼15-MHz to generate 1-μs transition time gate-switching waveforms. In order to maintain uniform charging/discharging currents during transitions, the embedded flyback converter operates in a pulse-frequency modulation (PFM) mode while charging and in a pulse-width modulation (PWM) mode while discharging the gate node. The required pulses with digitally programmable frequencies and duty-cycles are efficiently generated by a custom-designed IC, fabricated in a 0.25-μm HV CMOS technology. Also, the presented analysis guides a way to achieve the desired transition time with the maximum efficiency. The prototype IC demonstrates 37.5% energy recycling while driving a 15-V IGBT power switch with 105-nC gate charge at 20-kHz.
UR - https://www.scopus.com/pages/publications/84934324309
U2 - 10.1109/ECCE.2014.6953689
DO - 10.1109/ECCE.2014.6953689
M3 - Conference contribution
AN - SCOPUS:84934324309
T3 - 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
SP - 2159
EP - 2163
BT - 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
PB - Institute of Electrical and Electronics Engineers Inc.
ER -