US 2026/0066757 A1 · MUTLI-EXCITATON RESOLVER AND RELATED TECHNIQUES

Abstract

Described is a multi-excitation resolver. In embodiments, a multi-excitation resolver includes a rotor having circuitry arranged to provide a one speed resolver and a multi-speed resolver. In embodiments, the rotor may be disposed proximate a surface of a stator such that a capacitive gap exists between a surface of the rotor and the surface of the stator. In embodiments, the stator includes circuitry which may produce quadrature output signals based upon interaction with the rotor circuitry. In embodiments, sensing conductors, output conductors and transmission conductors may be disposed on surfaces of the rotor and stator, respectively, such that a capacitance between the output conductors and the sensing conductors may be used to measure axial displacement.

Claims20

Dependent claims

A rotor for use in a resolver, the rotor comprising:

a rotor substrate having first and second opposing surfaces;
and
first and second sets of conductors having a sinusoidally varying shape disposed on at least one of the first and second opposing surfaces of the rotor with the first set of conductors arranged to provide a single-speed resolver excitation circuit and the second set of conductors arranged to provide a multi-speed resolver excitation circuit.

A multi-excitation resolver comprising:

a rotor substrate having first and second opposing surfaces with first and second sets of conductors disposed on at least one of the first and second opposing surfaces of the rotor with the first set of conductors arranged to provide a one-speed resolver excitation circuit and the second set of conductors arranged to provide a multi-speed resolver excitation circuit;
and
a stator having first and second opposing surfaces, with third and fourth sets of conductors disposed on at least one of the first and second opposing surfaces of the stator with the third set of conductors arranged to provide a one-speed resolver output pickup circuit and the fourth set of conductors arranged to provide a multi-speed resolver output pickup circuit wherein a first one of the first and second opposing surfaces of the stator are disposed over a first one of the first and second surfaces of the rotor such that a capacitive gap exists between at least some of the first and second conductors on the rotor and at least some of the third and fourth conductors of the stator.

Dependencies are inferred from the claim text.

Mutli-excitaton resolver and related techniques

Life of this patent

Mutli-excitaton resolver and related techniques

Life of this patent

Abstract

Claims20