Title of Document: AN ULTRA-LOW POWER VOLTAGE REGULATOR SYSTEM FOR WIRELESS SENSOR NETWORKS POWERED BY ENERGY HARVESTING Chao Wang, Doctor of Philosophy, 2014 Directed By: Professor Martin Peckerar Department of Electrical and Computer Engineering A DC-DC converter is an important power management module as it converts one DC voltage level to another suitable for powering a desired electronic s...

This paper discusses the transient response of voltage regulator modules (VRMs) based on the small-signal models. The concept of constant resistive output impedance design for the VRM is proposed, and its limitations in applications are analyzed. The impacts of the output filter and the feedback control bandwidth show that there is an optimal design that allows the VRM to achieve fast transient...

Today’s on-board low-voltage, high-current dc-dc voltage regulator module (VRM) requirements for the new generation of IC’s and microprocessors are increasingly becoming stricter than ever as the demand for high dynamic performance and high power density converters continues to increase. A new scheme that combines interleaved technique and voltage-mode hysteretic control approach, by upgrading ...

Transient response; Power supply rejection. Abstract—To realize DC voltage conversion from 3.3V to 1.8V for SoC application, a fully on-chip Low Drop-Out (LDO) voltage regulator with 150mA driving capability is presented. Implemented in 0.18μm CMOS technology, the proposed LDO voltage regulator utilizes paralleled input differential pairs and current amplifiers to provide fast transient respons...

─An on chip low drop out voltage regulator that employs elegant compensation scheme is presented in this paper. The novelty in this design is that the device parasitic capacitances are exploited for compensation at different loads. The proposed LDO is designed to provide a constant voltage of 1.2V and is implemented in UMC 180 nano meter CMOS technology. The voltage regulator presented improves...

This paper presents a design of an UWB downconversion integrated CMOS resistive ring mixer with Linear Voltage Regulator (LVR), to supply required biasing voltages for the mixer section. The designed mixer circuit has been optimized for using in heart rate extraction system with microwave Doppler radar at 2.4GHz frequency. This mixer needs 2 DC bias voltages equal to 0.5 and 1 volts for its bes...

Intel, AMD, and other microprocessor vendors publish specifications for VRMs (Voltage Regulator Module) intended to provide power for a particular processor family. In addition to establishing electrical performance, these specifications often define the mechanical dimensions, VRM to motherboard connector, capacitors mo unted on the motherboard, and environmental factors such as airflow and amb...