Programmable DC Electronic Load for Testing on-Board Voltage Regulators

Programmable DC Electronic Load for Testing on-Board Voltage Regulators
Authors : Manjunath I, Dr. V Chayapathy
Publication Date: 03-10-2017


Author(s):  Manjunath I, Dr. V Chayapathy

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Volume. 6 - Issue. 09 , September - 2017

e-ISSN:   2278-0181

 DOI:  http://dx.doi.org/10.17577/IJERTV6IS090166


Many modern applications contain embedded processors and wireless connectivity and these circuits often have separate power management unit. The purpose of the power management unit is to manage power requirements of various SOC and ASIC's by providing required voltage and current in an optimal form. In a Solid State Drive (SSD), components like DRAM, Flash memory, Controller etc. requires specific voltage and current with tight tolerances for the reliable operation. Prescribed voltage and current has to be maintained by the Point of load DC-DC converter, with disturbances within the tolerance level. Proper testing and validation of Point of load (POL) DC-DC converter is essential to decide the performance of an SSD. DC electronic loads are used to emulate the characteristics of various loads in an SSD. The problem with the existing DC electronic loads is that they require wire and cables to connect to the board due to their dimensions. Cables will introduce inductance in the load current path and affect the testing results, especially the current slew rate. The Objective of this project is to design and develop a high slew rate Programmable DC electronic load which is operated as Constant Current Sink and emulates the characteristics of an SSD load such as NAND flash memory, DRAM, controller and other SOC's.


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