Flyback converter with voltage control mode on chip for portable applications

This paper introduces a compact, low power and submicron integrated DC-DC flyback converter designed for generating a constant desired output voltage. The proposed topology is designed to operate in continuous current mode operation at 1.25MHz. A PWM control scheme based on triangular waveform modul...

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Bibliographic Details
Published in2005 IEEE Workshop on Microelectronics and Electron Devices, 2005. WMED '05 pp. 80 - 83
Main Authors Sri Lakshmi Nalla, Hess, H.L., Buck, K.M., Mentze, E.J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2005
Subjects
CMOS technology
DC-DC power converters
Energy storage
Isolation technology
Power generation
Pulse width modulation
Switches
Switching converters
Topology
Voltage control
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Summary:This paper introduces a compact, low power and submicron integrated DC-DC flyback converter designed for generating a constant desired output voltage. The proposed topology is designed to operate in continuous current mode operation at 1.25MHz. A PWM control scheme based on triangular waveform modulation is presented. The converter switch and voltage mode control system is fabricated in a standard 0.35mum CMOS technology. Energy storage and power isolation are off-chip. Synchronous rectification topology using MOSFET is implemented. The converter with voltage control mode is observed to generate a DC voltage of 3.3V with 0.08 ripple using CADENCE simulations
ISBN:0780390725
9780780390720
ISSN:1947-3834
1947-3842
DOI:10.1109/WMED.2005.1431627