Hybrid control voltage regulator for switched capacitor based embedded DC-DC buck converter

Author

Maity, Biswajit ; Mandal, Pradip

Author_Institution

Electron. & Electr. Commun. Eng., IIT Kharagpur, Kharagpur, India

Volume

2

fYear

2011

fDate

8-10 April 2011

Firstpage

219

Lastpage

222

Abstract

In this paper a novel hybrid control voltage regulator for switched capacitor based embedded DC-DC buck converter is presented. Precise output voltage is maintained with the help of load current as well as switching frequency of the switched capacitor. To maintain high power efficiency over a wide range of load current, frequency control regulation is used whereas good transient performance is achieved with the current control regulation. Proposed hybrid regulator is implemented in 0.18um CMOS process with the dual gate MOS transistor. Total 440pF flying capacitors and 50pF load capacitor is used to implement proposed embedded voltage regulator. Proposed regulator supports up to 30mA load current without any external component.

Keywords

CMOS integrated circuits; DC-DC power convertors; MOSFET; voltage control; voltage regulators; CMOS; capacitance 440 pF; capacitance 50 pF; current 30 mA; dual gate MOS transistor; flying capacitors; frequency control regulation; hybrid control voltage regulator; load capacitor; load current; size 0.18 mum; switched capacitor based embedded DC-DC buck converter; switching frequency; Capacitors; Current control; Regulators; Switches; Switching frequency; Voltage control; Voltage-controlled oscillators; Switching power loss; conduction power loss; hybrid converter and hybrid regulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics Computer Technology (ICECT), 2011 3rd International Conference on

Conference_Location

Kanyakumari

Print_ISBN

978-1-4244-8678-6

Electronic_ISBN

978-1-4244-8679-3

Type

conf

DOI

10.1109/ICECTECH.2011.5941688

Filename

5941688