Improving of efficient control scheme in Switched-Capacitor DC-DC Converters for ultra-low power applications
Subject Areas : Electronics Engineering
Hamid Tavana
1
,
Abdolrasool Ghasemi
2
,
Najmeh Cheraghi Shirazi
3
1 - Islamic Azad University Boushehr Branch, Boushehr, Iran
2 - Islamic Azad University Boushehr Branch, Boushehr , Iran
3 - Islamic Azad University Boushehr Branch, Boushehr, Iran
Keywords:
Abstract :
Use appropriate compensation to zero steady-state error and improve transient response is essential part in the design of Switch Capacitor DC-DC Converter. The design of the op amp PID compensator used in the feedback circuit. The efficiency of this circuit with use of active ingredients is top 98%. The simulation of this cicuits done in the 0.18µmComs Cadence.the input voltage of this circuits is 1.8V and the range of output voltage is 250mV to 900mV in 2t01 topology.Change in the load current is 0 to 40mA.
[1] Chia-Ling Wei and Ming-Hsien Shih "Design of a Switched-Capacitor DC-DC Converter With a Wide Input Voltage Range,” IEEE Trans. Circuits Syst , 2013.
[2] C. L. Wei and H. H. Yang, “Analysis and design of a step-down switched-capacitor- based converter for low-power application,” in Proc. IEEE Int. Symp. Circuit Syst.2010 (ISCAS’10), 2010. pp. 1384–1387.
[3] Wei-Chung Chen and Ke-Horng Chen“A Wide Load Range and High EfficiencySwitched-Capacitor DC-DC Converter With Pseudo-Clock Controlled Load-dependent Frequency,” IEEE J. Solid-State Circuits, May 2014. vol. 40, no. 5, pp. 911–921.
[4] Y.K.Ramadass,A.A.Fayed,andA.P.Chandrakas an, “A f ully- Integrated switched- capacitor step-down DC-DC converter with digital capacitance modulation in 45 nm CMOS,” IEEE J. Solid-State Circuits, Dec. 2010. pp. 2557–2565.
_||_[1] Chia-Ling Wei and Ming-Hsien Shih "Design of a Switched-Capacitor DC-DC Converter With a Wide Input Voltage Range,” IEEE Trans. Circuits Syst , 2013.
[2] C. L. Wei and H. H. Yang, “Analysis and design of a step-down switched-capacitor- based converter for low-power application,” in Proc. IEEE Int. Symp. Circuit Syst.2010 (ISCAS’10), 2010. pp. 1384–1387.
[3] Wei-Chung Chen and Ke-Horng Chen“A Wide Load Range and High EfficiencySwitched-Capacitor DC-DC Converter With Pseudo-Clock Controlled Load-dependent Frequency,” IEEE J. Solid-State Circuits, May 2014. vol. 40, no. 5, pp. 911–921.
[4] Y.K.Ramadass,A.A.Fayed,andA.P.Chandrakas an, “A f ully- Integrated switched- capacitor step-down DC-DC converter with digital capacitance modulation in 45 nm CMOS,” IEEE J. Solid-State Circuits, Dec. 2010. pp. 2557–2565.