iRSpannungsCorrections
iRSpannungsCorrections is a term used in electronics and metrology to describe a family of calibration and correction techniques designed to compensate for voltage deviations caused by IR drops along conductors and interconnects between a power source and a load. The prefix iR refers to Ohm's law, where voltage drop equals the product of current and resistance, an effect that is significant in high-current or long-trace systems. Spannungs is derived from the German word for voltage, used here to evoke the voltage domain of the corrections.
Methodology: The correction can be implemented as direct (static) or dynamic. In the direct approach, measured
Applications: Used in battery management systems, automotive power distribution, high-current test fixtures, and precision measurement setups
Limitations: Requires accurate current measurement and stable line resistance; temperature, contact resistance, and dynamic impedance can
Variations: DC-only iR corrections, AC-ready corrections using complex impedance, and model-based algorithms.
See also: IR drop, voltage regulation, sense resistors, impedance modeling.