A low-power digital PWM DC/DC converter based on passive sigma-delta modulator

Author

Hoon, Siew Kuok ; Maloberti, Franco ; Chen, Jun

Author_Institution

Wireless Analog Technol. Center, Texas Instrum. Inc., Dallas, TX, USA

fYear

2005

fDate

23-26 May 2005

Firstpage

3873

Abstract

This paper describes a novel method to obtain a digital control for PWM DC/DC switching regulator. A passive sigma-delta modulator for which output is suitably processed obtains the PWM control and makes the control loop. The output of the sigma-delta enables generating the discrete-time PWM control. The proposed method has been extensively simulated at the behavioral level. Results show that the method can be effectively employed in low power DC/DC converters.

Keywords

DC-DC power convertors; PWM power convertors; circuit simulation; digital control; low-power electronics; power control; sigma-delta modulation; switching convertors; voltage regulators; PWM DC/DC switching regulator; PWM control; behavioral level simulation; control loop; digital control; discrete-time PWM control; low-power digital PWM DC/DC converter; passive sigma-delta modulator; Control systems; DC-DC power converters; Delay; Delta-sigma modulation; Digital control; Digital modulation; Energy management; Pulse width modulation; Pulse width modulation converters; Regulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1465476

Filename

1465476