Integration of High Efficiency PFM-Based Buck Converter for LEDs Driving

Author

Yu-Cherng Hung ; Bo-Sheng Lian

Author_Institution

Dept. of Electron. Eng., Nat. Chin-Yi Univ. of Technol., Taichung, Taiwan

fYear

2014

fDate

10-12 June 2014

Firstpage

804

Lastpage

807

Abstract

Low power design is an important research for consumer electronic equipments. Pulse frequency modulation function is often adopted in the design of power supply circuit. Based on several sub-circuits had been published in open literatures, this paper tries to integrate these function blocks as a dc-dc buck converter. By using TSMC 0.35-um CMOS technology, the buck converter is simulated to successfully drive light-emitter diode (LED) applications. The functionality of the converter is verified by HSPICE simulation. The circuit is expected to be integrated in power regulation circuits of car electronics, tablet PC, and digital camera equipments.

Keywords

CMOS integrated circuits; DC-DC power convertors; light emitting diodes; low-power electronics; power supply circuits; pulse frequency modulation; DC-DC buck converter; HSPICE simulation; LED driving; TSMC CMOS technology; car electronics; consumer electronic equipments; digital camera equipments; high efficiency PFM-based buck converter; light-emitter diode; low power design; power regulation circuits; power supply circuit design; pulse frequency modulation function; size 0.35 mum; tablet PC; Capacitors; Hysteresis; Inductors; Light emitting diodes; Loading; Pulse width modulation; Sensors; Pulse frequency modulation; buck converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer, Consumer and Control (IS3C), 2014 International Symposium on

Conference_Location

Taichung

Type

conf

DOI

10.1109/IS3C.2014.213

Filename

6846005