Design and Development of High Voltage Low Current Precision Power Supply

Abstract

In this era due to Power electronics revolution, people have very efficient tools to solve problems of having DC voltage to power the Electronics Devices. Every new electronic product, except those that are battery powered, requires converting off–line 115 Vac or 230 Vac power to some dc voltage for powering the electronics. Efficient conversion of electrical power is becoming a primary concern to companies and to society as a whole. Switching power supplies offer not only higher efficiencies but also offer greater flexibility to the designer. Recent advances in semiconductor, magnetic and passive technologies make the switching power supply an ever more popular choice in the power conversion arena today. In the industries nowadays three phase supply is a prime need for their utility. Power controllers, AC Drives, DC Drives are the major devices used for different purposes. As SMPS have very efficient performance, not to keep it –limited to lower voltage input range, but can be introduce it for the higher voltage inputs and enhance its versatility. Now the aim is to fabricate the cost effective SMPS working on High input voltage. This is facilitates with following advantages. Most reliable Compact Design Low (audible) noise Very High Efficiency Cost effective solution For such SMPS, the results of Simulation are shown for all different available solutions and also Hardware results are mentioned as a concrete support.