Title:
接点監視装置
Document Type and Number:
Japanese Patent JP7423773
Kind Code:
B2
Abstract:
A contact monitoring device for monitoring an electrical contact having a first contact state and a second contact state includes: an oscillator circuit for generating an excitation signal; a coupler including a signal input and a signal output, the oscillator circuit being connected upstream of the signal input in order to apply the excitation signal to the coupler, the coupler converting the excitation signal into a contact monitoring signal and outputting the contact monitoring signal at the signal output in order to act on the electrical contact; and a detector for detecting a version of the excitation signal in order to monitor the electrical contact. A first impedance value is set with the electrical contact in the first contact state on the oscillator circuit, and a second impedance value is set with the electrical contact in the second contact state on the oscillator circuit.
Inventors:
peter, scholz
Marius, Fisher
Christian, Reinhold
Marius, Fisher
Christian, Reinhold
Application Number:
JP2022527865A
Publication Date:
January 29, 2024
Filing Date:
November 12, 2020
Export Citation:
Assignee:
Phoenix Contact GmbH & Co.KG
International Classes:
H01H47/00; H01H9/54; H03K17/00
Domestic Patent References:
| JP2012211855A | ||||
| JP2014154487A |
Foreign References:
| US20110291672 |
Attorney, Agent or Firm:
Manabu Miyajima
Takeshi Sekine
Akira Akaoka
Masashi Yoshida
Takeshi Sekine
Akira Akaoka
Masashi Yoshida
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