Welcome to the ISDL Design Gallery

In the following sections, you will find executive summaries of projects that define the Integrated Research Design Laboratory. For more information, contact the ISDL Director, Professor Dongsheng 'Brian' Ma at [email protected].

Categories

  • Single-Inductor Multiple-Output (SIMO)
  • Thermal and Power Management
  • Energy Harvesting
  • LED Lighting
  • Biomedical Imaging and Biomedical Implantable Devices

Single-Inductor Multiple-Output

Thermal and Power Management

A 10-MHz 92.1%-Efficiency Green-Mode Automatic Reconfigurable Switching Converter with Adaptively-Compensated Single-Bound Hysteresis Control

Chen Zheng and Dongsheng Ma

Abstract

A green-mode automatic reconfigurable switching converter is presented in this work, which achieves step-up/down variable output and adaptively optimized power efficiency. A single-bound hysteresis controller is proposed to enable high-frequency operation with suppressed regulation errors. In addition, switching frequency of the converter is regulated at the pre-defined value by using an adaptive frequency compensator to avoid output spectrum variations. The proposed converter was fabricated with IBM 130-nm CMOS process. With a 10-MHz switching frequency and input voltage that can vary from 0.9 to 1.8 V, output voltage can be regulated between 0.9 to 2.2 V. Efficiency stays above 80% over entire 400-mW load power range with a peak value of 92.1%.

System Architecture

Description here.

Experimental Results

Chen - Wave

Die Photograph

Chen - die

Energy Harvesting

LED Lighting

Biomedical Imaging and Biomedical Implantable Devices