Circuit arrangement of the temperature compensation of a measuring resistor structure
First Claim
1. An electrical circuit comprising:
- at least one measuring resistor structure integrated in a semiconductor body;
at least one further resistor structure integrated in the semiconductor body and thermally coupled to the measuring resistor structure; and
a circuit arrangement electrically connected to the further resistor structure and configured to feed a current to the further resistor structure and evaluate a temperature-dependent voltage dropped across the further resistor structure, wherein the temperature-dependent voltage provides a signal used for temperature compensation of the measuring resistor structure.
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Accused Products
Abstract
An electrical circuit is disclosed herein for the temperature compensation of at least one measuring resistor structure integrated in a semiconductor body. The electrical circuit comprises at least one further resistor structure which is likewise concomitantly integrated into the semiconductor body and is thermally coupled to the measuring resistor structure. The electrical circuit also includes a circuit arrangement which is electrically connected to the further resistor structure, feeds a current into the further resistor structure, and evaluates a temperature-dependent voltage dropped across the further resistor structure as a result. The temperature-dependent voltage dropped across the further resistor is used for temperature compensation of the measuring resistor structure.
18 Citations
20 Claims
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1. An electrical circuit comprising:
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at least one measuring resistor structure integrated in a semiconductor body;
at least one further resistor structure integrated in the semiconductor body and thermally coupled to the measuring resistor structure; and
a circuit arrangement electrically connected to the further resistor structure and configured to feed a current to the further resistor structure and evaluate a temperature-dependent voltage dropped across the further resistor structure, wherein the temperature-dependent voltage provides a signal used for temperature compensation of the measuring resistor structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A circuit arrangement comprising:
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at least one measuring resistor structure integrated in a semiconductor body;
at least one further resistor structure integrated in the semiconductor body and thermally coupled to the measuring resistor structure; and
a current generating circuit electrically connected to the further resistor structure and configured to deliver a constant current to the further resistor structure, the current resulting in a temperature-dependent voltage dropped across the further resistor structure; and
an evaluation circuit configured to evaluate the temperature-dependent voltage dropped across the further resistor structure and compensate for the temperature dependence of the resistance of the measuring resistor structure. - View Dependent Claims (17)
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18. A circuit arrangement comprising:
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at least one measuring resistor structure integrated in a semiconductor body;
at least one further resistor structure integrated in the semiconductor body and thermally coupled to the measuring resistor structure; and
an electrical circuit connected to the further resistor structure and configured to apply a temperature-independent electrical parameter to the further resistor structure, application of the temperature-independent electrical parameter resulting in a temperature-dependent electrical parameter provided across the further resistor structure; and
an evaluation circuit configured to evaluate the temperature-dependent electrical parameter provided across the further resistor structure and compensate for the temperature dependence of the resistance of the measuring resistor structure. - View Dependent Claims (19, 20)
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Specification