| 摘要 |
The switch has a resonant circuit with a transmission coil (L s) generating an alternating magnetic field which induces a mutual induction voltage in a receiving coil (L e). An auxiliary voltage signal is obtained in a predefined ratio as a partial voltage from a resonant circuit voltage of the resonant circuit. The auxiliary voltage signal is connected in series with the mutual induction voltage such that a differential voltage is obtained at an output of the receiving coil. The differential voltage is supplied to an evaluation circuit in a suitable manner for obtaining a switching signal. Independent claims are also included for the following: (1) a method for operating an inductive proximity switch (2) a network for operating an inductive proximity switch. |
