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US 6,664,781 B2Granted
Inductive proximity sensor with a differentially coupled energy source
AssigneeSick AG
InventorOlaf Machul
Life of this patent
Estimating the term…
Abstract
An inductive proximity switch includes an electrical resonant circuit and an energy source coupled therewith to compensate for losses in the resonant circuit. The energy source is fully differentially coupled with the resonant circuit at the input side.
Claims13
An inductive proximity sensor comprising:
- a resonant circuit;
- and
- an energy source coupled to the resonant circuit and configured to compensate for losses in the resonant circuit,
- wherein the coupling between the energy source and the resonant circuit is fully differential.
1 more element
An inductive proximity sensor comprising:
- a resonant circuit;
- an energy source coupled with the resonant circuit and configured to compensate for the losses in the resonant circuit, wherein the coupling between the energy source and the resonant circuit is fully differential;
- and
- an evaluation circuit coupled to the resonant circuit and configured to detect push-pull signals.
1 more element
Dependencies are inferred from the claim text.