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US 2016/0251952 A1Published application
Downhole tool methods and systems with variable impedance control
AssigneeHalliburton Energy Services, Inc.
InventorsThanh T. Tran, Roger L. Shelton
Life of this patent
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Abstract
A disclosed method includes outputting, by an electrical component residing in a downhole tool, a clocked digital output. The method also includes adjusting, by a variable impedance circuit external to the electrical component, an impedance value in series with the clocked digital output as a function of temperature.
Claims20
A method, comprising:
- providing, by an electrical component residing in a downhole tool, a clocked digital output;
- and
- adjusting, as a function of temperature, an impedance value in series with said clocked digital output,
- wherein said adjusting is performed by a variable impedance circuit external to the electrical component.
1 more element
A downhole tool, comprising:
- a printed circuit board (PCB) having an electrical component with a clocked digital output;
- and
- a variable impedance circuit external to the electrical component to adjust, as a function of temperature, an impedance value in series with said clocked digital output.
Dependencies are inferred from the claim text.