Methods and systems for determining resistance of power conductors
AssigneeCommScope Technologies LLC
InventorsJohn C. Chamberlain, Michael Guerin, Erik William Lilieholm
Life of this patent
Estimating the term…
Abstract
Methods of powering a radio that is mounted on a tower of a cellular base station are provided in which a direct current (“DC”) power signal is provided to the radio over a power cable and a voltage level of the output of the power supply is adjusted so as to provide a substantially constant voltage at a first end of the power cable that is remote from the power supply. Related cellular base stations and programmable power supplies are also provided.
Claims28
A system, comprising:
- a power supply comprising an output configured to be coupled by power conductors to a direct current (DC) power input of a radio;
- and
- wherein, when the DC power input of the radio draws a constant power level through the power conductors, the power supply is configured to:
- provide a first DC voltage level at the output of the power supply;
- when providing the first DC voltage level at the output of the power supply, then measure a first direct current level flowing through the output of the power supply;
- provide a second DC voltage level at the output of the power supply;
- when providing the second DC voltage level at the output of the power supply, then measure a second direct current level flowing through the output of the power supply, wherein the second DC voltage level differs from the first DC voltage level;
- and
- determine a resistance of the power conductors using the first DC voltage level, the second DC voltage level, the first direct current level, and the second direct current level.
A method of determining a resistance of power conductors electrically coupling an output of a power supply to a direct current (DC) power input of a radio, comprising:
- when the DC power input of the radio draws a constant power level through the power conductors:
- providing a first DC voltage level at the output of the power supply;
- when providing the first DC voltage level at the output of the power supply, measuring a first direct current level flowing through the output of the power supply;
- providing a second DC voltage level at the output of the power supply;
- and
- when providing the first DC voltage level at the output of the power supply, measuring a second direct current level flowing through the output of the power supply, wherein the second DC voltage level differs from the first DC voltage level;
- and
- determining the resistance, of the power conductors coupling the output of the power supply to the DC power input of the radio, using the first DC voltage level, the second DC voltage level, the first direct current level, and the second direct current level.
Dependencies are inferred from the claim text.