Your power supply has settable current limit. It is set to some value and your load tries to draw more, so the current limit is reached and the supply adjusts the output voltage down in order to keep the current at the set limit. Current regulation. Benchtop and programmable DC power supply are reliable workhorses in any electronics lab or workshop, but like any electronic device, they can encounter issues over time. Understanding the most common DC power supply problems — and knowing quick troubleshooting steps — can save you downtime, money. The best tool to use for preliminary troubleshooting in a DC power supply is a digital multimeter (DMM). Here, we'll discuss the basics of DMMs and how to check the input. If not properly maintained or diagnosed, these issues can lead to inaccurate results, damaged components, or total equipment failure. To help you troubleshoot effectively, let's explore some of the most common issues encountered with DC regulated power supplies, along with practical solutions to. Are you experiencing issues with your DC/DC power supply not starting up properly when designing your power supply systems? In this paper, we will sort out the problems of the power supply failing to start or starting improperly, analyze the reasons behind them, and provide solutions. The Input. My FM100 charge controllers (either used together, or when one is deactivated and the other used alone) cannot hold my batteries at the specified absorb voltage, and instead the batteries rise significantly above the absorb voltage, sometimes as much as 2.
