Abstract: In some examples, a circuit arrangement has a first output node for connection to a first electrode of the electrochemical cell, a second output node for connection to a second electrode of the electrochemical cell and a third output node for connection to a third electrode of the electrochemical cell. The circuit arrangement further has an interface circuit designed to output a first voltage at the first output node and further designed to output a third voltage at the third output node, which third voltage is set such that a second voltage at the second output node corresponds to a reference voltage. A control unit is designed to set the first voltage such that a predetermined cell voltage is applied between the first and the second output node. The control circuit is further designed to adjust the reference voltage depending on the electrical state of the electrochemical cell.

Abstract: A circuit for an NFC chip is described herein. According to one exemplary configuration, the circuit comprises an antenna for near field communication, an antenna resonant circuit which has an adjustable resonant frequency, a temperature sensor and a controller circuit coupled to the temperature sensor. The controller circuit is designed to change the resonant frequency of the antenna resonant circuit according to a temperature sensor signal provided by the temperature sensor.

Abstract: A circuit for an NFC chip is described herein. According to one exemplary configuration, the circuit comprises an antenna for near field communication, an antenna resonant circuit which has an adjustable resonant frequency, a temperature sensor and a controller circuit coupled to the temperature sensor. The controller circuit is designed to change the resonant frequency of the antenna resonant circuit according to a temperature sensor signal provided by the temperature sensor.

Abstract: This disclosure includes a measuring device and a corresponding method. According to an exemplary embodiment, the measuring device comprises the following: a measuring circuit connected to one or more sensors; an RF frontend for near field communication (NFC) with an external device; a controller circuit coupled to the RF frontend and the measuring circuit and operative to receive measured values supplied from the measuring circuit, and wherein the controller circuit is further operative to check whether active communication with the external device occurs during a measurement and to store or discard one or more measured values supplied from the measuring circuit depending on this check. It is checked whether an NFC magnetic field is present during the measurement. Further configurations include a system comprising a measuring device and an NFC-enabled device.

Abstract: This disclosure includes a measuring device and a corresponding method. According to an exemplary embodiment, the measuring device comprises the following: a measuring circuit connected to one or more sensors; an RF frontend for near field communication (NFC) with an external device; a controller circuit coupled to the RF frontend and the measuring circuit and operative to receive measured values supplied from the measuring circuit, and wherein the controller circuit is further operative to check whether active communication with the external device occurs during a measurement and to store or discard one or more measured values supplied from the measuring circuit depending on this check. It is checked whether an NFC magnetic field is present during the measurement. Further configurations include a system comprising a measuring device and an NFC-enabled device.

Abstract: A circuit for an NFC chip is described herein. According to one exemplary configuration, the circuit comprises an antenna for near field communication, an antenna resonant circuit which has an adjustable resonant frequency, a temperature sensor and a controller circuit coupled to the temperature sensor. The controller circuit is designed to change the resonant frequency of the antenna resonant circuit according to a temperature sensor signal provided by the temperature sensor.

Abstract: In some examples, a circuit arrangement has a first output node for connection to a first electrode of the electrochemical cell, a second output node for connection to a second electrode of the electrochemical cell and a third output node for connection to a third electrode of the electrochemical cell. The circuit arrangement further has an interface circuit designed to output a first voltage at the first output node and further designed to output a third voltage at the third output node, which third voltage is set such that a second voltage at the second output node corresponds to a reference voltage. A control unit is designed to set the first voltage such that a predetermined cell voltage is applied between the first and the second output node. The control circuit is further designed to adjust the reference voltage depending on the electrical state of the electrochemical cell.