Hybrid load differential amplifier operable in a high temperature environment of a turbine engine
First Claim
1. A circuitry adapted to operate in a high-temperature environment of a turbine engine, the circuitry comprising:
- a sensing element disposed on a component of the turbine engine to sense a parameter of the component and provide a voltage indicative of the sensed parameter;
a differential amplifier haying an input terminal coupled to the sensing element to receive the voltage indicative of the sensed parameter; and
a hybrid load circuitry AC-coupled to the differential amplifier, wherein the differential amplifier and the hybrid load circuitry are disposed in the high-temperature environment of the turbine engine.
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0 Petitions
Accused Products
Abstract
A circuitry (120) adapted to operate in a high-temperature environment of a turbine engine is provided. The circuitry may include a differential amplifier (122) having an input terminal (124) coupled to a sensing element to receive a voltage indicative of a sensed parameter. A hybrid load circuitry (125) may be AC-coupled to the differential amplifier. The hybrid load circuitry may include a resistor-capacitor circuit (134) arranged to provide a path to an AC signal component with respect to the drain terminal of the switch (e.g., 126) of a differential pair of semiconductor switches 126, 128, which receives the voltage indicative of the sensed parameter.
14 Citations
23 Claims
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1. A circuitry adapted to operate in a high-temperature environment of a turbine engine, the circuitry comprising:
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a sensing element disposed on a component of the turbine engine to sense a parameter of the component and provide a voltage indicative of the sensed parameter; a differential amplifier haying an input terminal coupled to the sensing element to receive the voltage indicative of the sensed parameter; and a hybrid load circuitry AC-coupled to the differential amplifier, wherein the differential amplifier and the hybrid load circuitry are disposed in the high-temperature environment of the turbine engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Circuitry comprising:
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a differential amplifier; and a hybrid load circuitry AC-coupled to the differential amplifier, wherein the differential amplifier and the hybrid load circuitry are disposed in the high-temperature environment of a turbine engine, wherein the differential amplifier comprises a first pair of semiconductor switches, and the hybrid load circuitry comprises a second pair of semiconductor switches, each pair of switches having respective drain, source and gate terminals, wherein the hybrid load circuitry further comprises a resistor-capacitor circuit arranged to provide a path to an AC signal component with respect to the drain terminal of the switch of the first pair of semiconductor switches, which receives the voltage indicative of the sensed parameter. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification