Khondker Z. Ahmed

Learn More
This paper presents a novel idea of vehicle tracking system based on the existing GSM cellular networks. A software based system is proposed that sends specialized request to the GSM cellular networks to call any particular vehicle ID. The vehicle ID is actually a particular SIM kept in a special kit inside the vehicle that is capable of receiving a phone(More)
An autonomously bias gated synchronous boost regulator consuming 110nA at 1V is demonstrated in 130nm CMOS. The IC generates regulated 1V output from 30mV input, starts up autonomously (battery-less) at 265mV, and regulates output ranging from 0.78V-3.3V. The peak efficiency is 83% with 10μA and 85% with 10mA load.
This paper presents an on-chip thermoelectric (TE) energy management system for energy-efficient on-demand active cooling of integrated circuits. Embedding a TE module (TEM) within the package has shown potential for on-demand cooling of integrated circuits (ICs); however, the additional cooling energy limits the effectiveness of TE coolers (TEC). The(More)
Distributed small-scale electronics for IoT applications are on the rise. Power delivery for such electronics requires innovative design techniques to improve energy efficiency. This paper summarizes energy delivery challenges for IoT devices and discusses several design techniques for efficient power delivery units. Such design solutions cover challenges(More)
  • 1