This paper presents techniques to assist the power supply designer in accurately modeling and designing the control loop of a switchmode DC/DC power supply. The three major components of the power supply control loop (i.e., the power stage, the pulse width modulator and the error amplifier) are presented with power stage modeling being the focus of this presentation. The power stage is modeled ...

In Taiwan light source (TLS), Bira’s MCOR30 power converter modules are adopted as the corrector magnet power converters, the output is regulated by analog PWM IC that caused nonlinear behavior at zero cross and the adjustment of compensator for different kind of magnet load is inconvenient. To fulfill digital regulation control, the analog regulation IC of Bira’s MCOR30 is replaced by a fully ...

Power reduction during testing is one of the most important challenges for the VLSI design and test engineers. Switching is one of the important contributors to the power consumption of on chip buses. This paper addresses the problem of minimizing power dissipation due to switching of the busses during testing. For memory testing, many read/write cycles are required (as per March algorithm), in...

In this paper, we explore reduced-connectivity radio frequency (RF) switching networks for reducing the analog hardware complexity and switching power losses in antenna selection (AS) systems. In particular, we analyze different hardware architectures for implementing the RF switching matrices required in AS designs with a reduced number of RF chains. We explicitly show that fully-flexible swit...

A Class-E/Fodd high power amplifier (PA) using the distributed active transformer (DAT) is demonstrated at 29MHz. The DAT combines the output power from four VDMOS push-pull pairs. The zero voltage switching (ZVS) condition is investigated and modified for the Class-E/Fodd amplifier with a non-ideal output transformer. All lumped elements including the DAT and the transistor package are modeled...

Abstract In this paper a promising novel output voltage filtering concept for multi-cell switch-mode power amplifiers is analyzed. The proposed hybrid filtering concept is based on a passive LC filter enhanced by a linear-mode correction stage of small rated power. Using this principle, also "sub-harmonic" (i.e. low-frequency) switching noise distortions (typically appearing in real interleaved...

Currently, several soft switching topologies have been studied to achieve high power switching efficiency, reduced cost, improved reliability and reduced parasites. It is well known that improvement in power electronics systems always depend on advanced in power devices. The IGBT has been successfully used in a variety of switching applications such as motor drives and appliance control because...

Power MOSFETs have become the standard choice for the main switching devices in a broad range of power conversion applications. They are majority carrier devices with no minority carrier injection, superior to Power Bipolar Junction Transistors (BJTs) and Insulated Gate Bipolar Transistors (IGBTs) in high frequency applications where switching power losses are dominant. They can be paralleled b...

Due to the trade-off between power, area and performance, various efforts have been done. This work is also based to reduce the power dissipation of the vlsi circuits with the performance upto the acceptable level. The dominant term in a well designed vlsi circuit is the switching power and low-power design thus becomes the task of minimizing this switching power. So, to design a low-power vlsi...