Title :
An asynchronous finite state machine controller for integrated buck-boost power converters in wideband signal-tracking applications
Author :
Fernandez, Daniel ; Madrenas, Jordi ; Alarcon, Eduard
Author_Institution :
Electron. Eng. Dept., Univ. Politec. de Catalunya, Barcelona
Abstract :
In this paper, a simple, fully digital, asynchronous finite state machine controller for buck-boost power converters is introduced and simulated. With the addition of only two analog voltage comparators and six power MOS switches, the circuit can generate an output voltage that is able to track a dynamic reference with a 1 MHz bandwidth with good efficiency using a 0.35 mum CMOS process. The controller also provides adiabatic charging and discharging of capacitive loads.
Keywords :
CMOS integrated circuits; finite state machines; power convertors; power integrated circuits; CMOS process; analog voltage comparators; asynchronous finite state machine controller; bandwidth 1 MHz; integrated buck-boost power converters; six power MOS switches; size 0.35 mum; wideband signal-tracking applications; Automata; Bandwidth; CMOS process; Circuit simulation; Power generation; Process control; Switches; Switching circuits; Voltage; Wideband;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541891
