Advanced Pulse Width Modulation Controller ICs for DC-DC Converters: From architecture to circuit implementation - Softcover

Zhang, Jianhui

Softcover

ISBN 10: 3836473712 ISBN 13: 9783836473712

Publisher: VDM Verlag, 2009

Synopsis

This book describes power management ICs to tackle the challenges for both accurate and efficient power delivery for today's high performance processors. A double-edge multi-phase low-latency pulse width modulator IC is implemented in 0.18 um CMOS process with 0.04 mm2 active area and demonstrates a fast double-edge pulse width modulation scheme which is important for achieving fast controller response for high bandwidth applications. A multi-mode 4-phase digital IC controller for voltage regulator application is implemented in 0.18 um CMOS process with 4 mm2 active area. The controller combines load current feedforward with voltage mode feedback to achieve fast transient response and multi-mode control strategy improves the converter efficiency by at least a factor of ten in light load condition. A load-scheduled integrator array is developed in the controller IC which improves the load transient response when voltage regulator transitions between continuous conduction mode and discontinuous conduction mode.

About this title

About the Author

Jianhui Zhang received Ph.D. degree from University of California, Berkeley in electrical engineering in 2006. He is currently the design manager at National Semiconductor Corporation focusing on research and development of power management circuits associated with renewable energy and battery management system for hybrid and electric vehicle.

Edition details

• Publisher: VDM Verlag
• Publication date: 2009
• Language: English
• ISBN 10: 3836473712
• ISBN 13: 9783836473712
• Binding: Paperback
• Number of pages: 128