Title :
A synchronous buck-boost converter on a Silicon-On-Sapphire 0.5µm process
Author :
George, Libin ; Lehmann, T. ; Hamilton, Tara J.
Author_Institution :
Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
This paper presents the design of a synchronous non-inverting buck-boost DC-DC converter on a Silicon-on-Sapphire (SOS) 0.5μm process. The converter uses voltage-mode feedback and PWM control to regulate the power delivered to a range of output voltages and loads. The circuit has been simulated using Cadence and its performance has been measured. The converter has an output voltage range of 1.2-4V and can deliver up to 750 mA. It is up to 92% efficient with a maximum ripple voltage of 80mV and uses significantly less die area than similar converters on standard CMOS processes.
Keywords :
CMOS integrated circuits; DC-DC power convertors; PWM power convertors; circuit feedback; circuit simulation; silicon-on-insulator; CMOS process; Cadence; PWM control; SOS; circuit simulation; maximum ripple voltage; output load; output voltage; power regulation; silicon-on-sapphire; size 0.5 mum; synchronous noninverting buck-boost DC-DC converter; voltage 1.2 V to 4 V; voltage 80 mV; voltage-mode feedback; CMOS integrated circuits; Logic gates; Pulse width modulation; Silicon; Standards; Substrates; Voltage control; SOS; buck-boost; synchronous;
Conference_Titel :
Circuits and Systems (APCCAS), 2012 IEEE Asia Pacific Conference on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1728-4
DOI :
10.1109/APCCAS.2012.6419043
