Title :
A reconfigurable dual output low power digital PWM power converter
Author :
Dancy, Abram ; Chandrakasan, Anantha
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
This versatile power converter controller provides dual outputs at a fixed switching frequency and can regulate either output voltage or target system delay (using an external L-C filter). In the voltage regulation mode, the output voltage is monitored with an A/D converter, and the feedback compensation network is implemented digitally. The generation of the PWM signal is done with a hybrid delay line/counter approach, which saves power and area relative to previous implementations. Power devices are included on chip to create the two independently regulated output PWM signals. The key features of this design are its low power dissipation, reconfigurability, use of either delay or voltage feedback, and multiple outputs.
Keywords :
PWM power convertors; analogue-digital conversion; circuit feedback; low-power electronics; voltage control; A/D converter; digital PWM power converter; dual outputs; feedback compensation network; fixed switching frequency; hybrid delay line/counter; low-power electronics; output voltage; power dissipation; reconfigurability; voltage regulation mode;
Conference_Titel :
Low Power Electronics and Design, 1998. Proceedings. 1998 International Symposium on
Conference_Location :
Monterey, CA, USA
Print_ISBN :
1-58113-059-7