The design of a 500watts uninterruptible power supply with voltage leo indicator inverted

Thesis Overview

<p> </p><p><strong>INTRODUCTION</strong></p><p>Standby power is an extreme necessity these days owing to bad quality of power supply. The present AC power lines are based in spike surges, transients, sags and noise. This result in failure of electronic equipment and without adequate protection; all electronic equipment is at a great risk.</p><p>The fundamental purpose of a UPs is to provide an uninterruptible source of power for the equipment it protects. For instance, an electric device plugged into the wall has only one source of power, thus if there is a blackout, the electricity is cut and the device obviously goes off immediately. A UPs changes all this equation by providing its equipment two sources of power. UPs are designed so that there is one source and another source that kicks in if the primary is disrupted, called the secondary power sources, and the battery contained within the UPs in the other.</p><p>While there are many less expensive methods one can employ to provide some degree of protection for ones PC (for example) from power problems, none of them c an insulate your system from trouble as well as good UPs with a voltage analyzer.</p><p>The idea behind a UPs is pretty obvious from the name. In addition to filtering, enhancing or modifying the utility power, special circuiting and batteries are used to prevent the PC (for example) from losing power during a disruption (black out) or voltage sap.</p><p><strong>SCOPE AND SPECIFICATION</strong></p><p>The project work is limited to the design of a standby UPs with a voltage LED indicator.</p> <br><p></p>