US 12,461,132 B2
Techniques for determining a resistance of electrical conductors providing electrical power to a radio
Rajiv Koshy, Murphy, TX (US); David Barkman, Jr., Otego, NY (US); and Willis James, Wylie, TX (US)
Assigned to Outdoor Wireless Networks LLC, Richardson, TX (US)
Filed by Outdoor Wireless Networks LLC, Richardson, TX (US)
Filed on Feb. 10, 2025, as Appl. No. 19/049,923.
Claims priority of provisional application 63/558,901, filed on Feb. 28, 2024.
Prior Publication US 2025/0271477 A1, Aug. 28, 2025
Int. Cl. G01R 27/08 (2006.01); H02M 1/00 (2007.01)
CPC G01R 27/08 (2013.01) [H02M 1/0009 (2021.05)] 21 Claims
OG exemplary drawing
 
15. An apparatus for determining a resistance of electrical conductors through which electrical power is provided by a direct current (DC) voltage converter to a DC power input of a radio, wherein the electrical conductors have converter ends and radio ends, and wherein output current flows from the converter ends to the radio ends, the apparatus comprising:
processing circuitry; and
at least one DC voltage converter communicatively coupled to the processing circuitry;
wherein each DC voltage converter comprises a DC-DC voltage converter electrically coupled to a current sensor configured to measure direct current flowing through an output of the DC voltage converter;
wherein the processing circuitry is configured to:
obtain a maximum representation of dispersion of the output current;
cause an output voltage of a DC voltage converter to be set to an output voltage level;
obtain more than one measured output current levels from the current sensor of the DC voltage converter and at least one measured radio ends voltage level;
determine a representation of dispersion of the more than one measured output current levels;
determine whether the representation of dispersion of the more than one measured output current levels is within the maximum representation of dispersion of the output current; and
determine that the representation of dispersion of the more than one measured output current levels is within the maximum representation of dispersion of the output current, then using a representation of a radio end voltage level, the output voltage level, and a representation of the more than one measured output current levels, determine the resistance of the electrical conductors.