Conventional dc-dc boost converters are unable to provide high step-up voltage gains due to the effect of power switches, rectifier diodes, and the equivalent series resistance of inductors and capacitors. In this paper a Linear Peak Current Mode Controller (LPCM) for a transformerless dc-dc converters is proposed to achieve high step-up voltage gain without an extremely high duty ratio. In the...

The behavior of a photovoltaic solar array is investigated by performing a simulation in Simulink (MATLAB). The modeling of the system is based on the one diode model (in which the solar cell’s equivalent circuit is composed by a current source, diode, series and parallel resistance). The simulation results show how the series and parallel connection of the solar cells have a direct impact unde...

The major advantage of Polymer Tantalum capacitors over other types tantalum is their low equivalent series resistance (ESR), providing a higher capacitance stability with frequency and ripple current capability. When were introduced to the market in mid 1990s, they voltage, leaky, unreliable, which limited applications commercial electronics. Today, some polymer demonstrate highest working low...

Abstract A series resistance extraction method proposed recently, which uses multiple drain current versus gate voltage curves at varied voltages, was applied to bulk CMOS devices low temperatures down 4 K. moderate reduction of compared with 300 K found. Horizontal field dependence mobility significantly changed temperature, taken into account during the extraction. Anomalous non-linear observ...