Title :
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
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;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465476
