Title :
A novel on-chip CMOS current sensor implemented by switched capacitors for a current-mode control DC-DC buck converter
Author :
Zhang, Yong ; Lu, Wengao ; Guo, Juan ; Zhang, Yajing ; Chen, Zhongjian ; Zhang, Yacong ; Ji, Lijiu
Author_Institution :
Inst. of Microelectron., Peking Univ., Beijing, China
Abstract :
A novel on-chip CMOS current sensor implemented by switched capacitors for a current - mode buck converter is presented in this paper. This proposed current sensing circuit does not need another sense MOSFET and a voltage-to-current and current-to-voltage transform circuit. We use the 0.35um DPTM CMOS process to design and simulate this circuit. Test result shows that the accuracy and the speed of the proposed current sensing circuit are high.
Keywords :
CMOS integrated circuits; DC-DC power convertors; MOSFET; electric sensing devices; switched capacitor networks; DPTM CMOS process; MOSFET; current sensing circuit; current-mode buck converter; current-mode control DC-DC buck converter; current-to-voltage transform circuit; on-chip CMOS current sensor; size 0.35 mum; switched capacitor; voltage-to-current transform circuit; Accuracy; CMOS integrated circuits; Capacitors; Power MOSFET; Resistors; Sensors; DC-DC; current mode; current sensing circuit; switched capacitors;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2011 International Conference of
Conference_Location :
Tianjin
Print_ISBN :
978-1-4577-1998-1
Electronic_ISBN :
Pending
DOI :
10.1109/EDSSC.2011.6117618
