Design and fabrication of regulated DC electronic load for testing power supplies and batteries

摘要

A DC electronic load plays a vital role in determining operating characteristics of a DC source. In this work a detailed design procedure for a regulated DC electronic load is proposed, incorporating different test modes. The designed electronic load can operate either in constant current or power mode. The portable size of the DC electronic load makes it suitable for testing solar panels. The proposed design was employed to test different DC sources. Various characteristic plots of lead-acid battery, NiMH battery and a solar panel were obtained. The characteristic plots of various DC sources validate satisfactory operation of the proposed design.