TY - GEN
T1 - Fully-integrated digital average current-mode control 12V-to-1.xV voltage regulator module IC
AU - Vekslender, Timur
AU - Abramov, Eli
AU - Lazarev, Yevgeny
AU - Peretz, Mor Mordechai
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/17
Y1 - 2017/5/17
N2 - This paper introduces a fully-integrated 12-to-1.xV voltage regulator module IC. A fully synthesizable digital two-loop controller has been realized through HDL tools. Several new IP blocks have been developed: a window delay-line based ADC, two independent PI compensators with shared hardware for calculations, high-resolution digital PWM (HR-DPWM), and a programmable dead-time module. The mixed-signal IC has been fabricated on a 0.18μm 5V CMOS process. It incorporates the digital core and a synchronous rectifier power-stage, including a drive circuitry operating at 1.25MHz with the ability to deliver up to 10W from 12V input. The digital core has been realized by an automated synthesis process and place-and route tools, resulting in effective silicon area of 0.16mm2. Post-layout and experimental results of the fabricated IC operating in closed-loop are provided, demonstrating the performance and benefits of the new controller for meeting the requirements of tight output voltage regulation.
AB - This paper introduces a fully-integrated 12-to-1.xV voltage regulator module IC. A fully synthesizable digital two-loop controller has been realized through HDL tools. Several new IP blocks have been developed: a window delay-line based ADC, two independent PI compensators with shared hardware for calculations, high-resolution digital PWM (HR-DPWM), and a programmable dead-time module. The mixed-signal IC has been fabricated on a 0.18μm 5V CMOS process. It incorporates the digital core and a synchronous rectifier power-stage, including a drive circuitry operating at 1.25MHz with the ability to deliver up to 10W from 12V input. The digital core has been realized by an automated synthesis process and place-and route tools, resulting in effective silicon area of 0.16mm2. Post-layout and experimental results of the fabricated IC operating in closed-loop are provided, demonstrating the performance and benefits of the new controller for meeting the requirements of tight output voltage regulation.
KW - Average current mode control
KW - DC-DC converters
KW - Digital control
KW - PWM
KW - Power management IC
KW - Voltage regulator module
UR - http://www.scopus.com/inward/record.url?scp=85020036905&partnerID=8YFLogxK
U2 - 10.1109/APEC.2017.7930980
DO - 10.1109/APEC.2017.7930980
M3 - Conference contribution
AN - SCOPUS:85020036905
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2043
EP - 2050
BT - 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PB - Institute of Electrical and Electronics Engineers
T2 - 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Y2 - 26 March 2017 through 30 March 2017
ER -