Input-series two-stage dc–dc converter with inductor coupling. In: Proceedings of NEEC, DTU, Delhi: Delhi Technological University, 2011. Two stage dc–dc converter based multiple output switched mode power supplies. IEEE Trans Power Electrons 2005 20: 44– 55. Control loop design for two-stage DC–DC converters with low voltage/high current output. In: Annual IEEE conference on INDICON, Chennai, 2005: 585– 9. A single dc–dc converter based multiple output SMPS with fully regulated and isolated outputs. In: Joint international conference on power electronics, drives and energy systems (PEDES) & 2010 Power India, New Delhi, 2010: 1– 6. Design, modeling, simulation and performance of a MOSMPS fed from a universal standard single-phase outlet. IEEE Recommended Practices and Requirements for Harmonics Control in Electric Power System, IEEE Standard 519, 1992. Isolated dc–dc converter gains K p & K i: 0.8, 35ġ. Experimental validation of the power supply is carried on a developed hardware prototype, and the test results are compared with the simulated performance for design verification. Extensive simulations are carried out to demonstrate the improved performance of the proposed bridgeless converter based multi-output computer power supply at varying source voltages and load conditions. The proposed bridgeless converter based power supply is designed using fundamental design equations, and different component values are calculated. A dc–dc converter is used at the second stage that has a high frequency transformer with multiple secondary windings to obtain different dc voltage levels at the output. In this paper, a non-isolated ac–dc converter is proposed as the first stage converter to obtain a regulated dc output rather than using a simple uncontrolled diode bridge rectifier at the front end. A dc–dc converter is used for obtaining these isolated multi-output dc voltages with excellent regulation. Computer power supplies are required to have multiple isolated regulated dc voltages with low ripple content and high input power factor at the utility interface.