This article introduces a Virtual Remote Sensing™ (VRS™) technology for improving load regulation at the end of long wiring runs by addressing voltage drops.
The article introduces the LT4180 controller and its technology, Virtual Remote Sensing (VRS), designed to solve voltage drop issues in power distribution systems. Conventional methods like remote sensing require extra wires, while local regulation is inefficient; VRS offers a flexible alternative by dynamically correcting for impedance.
The system works by alternating the output current between 95% and 105% of the required output current to create a measurable square wave.
When the wiring causes a 2.5V drop, the voltage at the load dropped only 73mV from its value at no current.