Dc-dc power converters are employed in a variety of applications, including power supplies for personal computers, office equipment, spacecraft power systems, laptop computers, and telecommunications equipment, as well as dc motor drives. The input to a dc-dc converter is an unregulated dc voltage Vg. The converter produces a regulated output voltage V, having a magnitude (and possibly polarity...

Conscientious objection (CO) is the refusal to obey laws due to moral, religious or belief principles. The ideologies or religions underlying laws or constitutions have been seldom analyzed. Scientific Ethics finds that constitutions and laws have implicit or explicit ideological elements that are imposed on citizens, and denies or forbids others that lead citizens to CO. Ideological analysis i...

In his paper Computing machinery and intelligence, Turing introduces a rather trivial chess problem as a conversation piece in an example Turing test. The example is about much more than computers playing chess: it has a hidden message that is about resolving ambiguity and knowledge representation, probably inserted by Turing as an Easter egg for us to find.

This paper looks at Turing’s postulations about Artificial Intelligence in his paper ‘Computing Machinery and Intelligence’, published in 1950. It notes how accurate they were and how relevant they still are today. This paper notes the arguments and mechanisms that he suggested and tries to expand on them further. The paper however is mostly about describing the essential ingredients for buildi...

In this paper the study of complex phenomenon in buck converter under voltage mode control, operating in discontinious current mode, within Matlab/Simulink simulation environments is provided. To perform simulations different types of models are used: based on discrete-time maps, differential equations and real elements (including different nonidealities). The main goal of this paper is to dete...

Soft switching of DC-DC converter is done here. This is obtain good efficiency and to reduce the switching losses. Zero voltage switching reduces the switching losses in the circuit. This is done by using boost converter. Soft-switching characteristic of the proposed converter reduces switching loss of active power switches and raises the conversion efficiency. A voltage step-up function and a ...

In this paper a new step-up DC-to-DC converter with high voltage conversion ratio with small voltage stress is presented. The converter is suitable for the applications where high voltage conversion ratio is required. The proposed converter is different from the conventional Cuk converter and for a given duty ratio provides high conversion ratio with reduced switch voltage stress. Due to low sw...